• zynaddsubfx - Free implementation of a sound synthesizer
  • Zthread - Object-oriented threading and synchronization library
  • Zsh - Shell resembling the Korn shell
  • Zorp - Proxy firewall suite
  • Zope - Web application server
  • zoidberg - Shell written, configured, and operated entirely in Perl
  • zoem - General purpose macro language
  • zmixer - Simple volume control
  • Zlib - Data compression library
  • ziproxy - Proxy that gzips files and reduces image size
  • Zinf - Cross-platform audio player
  • Zina - GUI tool for audio
  • Zim - A desktop wiki.
  • Zile is Lossy Emacs - An Emacs clone. - Part of the GNU Project
  • zgv - Picture viewer for VGA/SVGA
  • zerotools - Tools to aid compression of virtual machine disks with Linux virtual machines.
  • Zeppoo - Software to detect if a rootkit is installed on your system.
  • Zen-Slideshow - Is a php slideshow application for web sites
  • zenity - Displays Gtk+ dialog boxes from the command line or shell scripts
  • Zebra - Implementation of routing protocols - Part of the GNU Project
  • Zebedee - Secure tunnel for TCP/IP or UDP data transfer
  • Zdisk - Creates a boot/rescue floppy or CD
  • Zapping - A TV viewer program for GNOME.
  • z2tml - Converts files in the Z document language to HTML
  • yuv4mpeg - Let users creat yuv4mpeg filters in Perl
  • Yum Repo Sync - A script for creating a local repository for yum.
  • yudit - Unicode text editor for the X Window System
  • ytree - File manager with an xtree-like interface
  • Ytalk - Multi-user chat program
  • YSM - An easy ICQ console client.
  • ypserv - Simple network lookup service
  • youhp3 - HTML preprocessor
  • yhttpd - Lightweight Web server
  • Ygl - 2D graphics library
  • Yelp - Gnome help browser
  • yeemp - Decentralized instant messaging
  • Yed - Library of modules for object-oriented programming
  • yaws - Light-weight, threaded Web server
  • yawk - Wiki clone written in gawk
  • yavipin - Secure tunnel
  • YasSS - A program that solves and generates Sudokus from the command line and curses.
  • yassl - BuildS security functionality into applications and devices
  • YASM - A rewrite of the NASM assembler with additional support (64-bit, Mach-O, etc.)
  • Yard - Scripts for creating rescue disks
  • yappa-ng - Manages an online photo gallery
  • Yapbib - Manages a set of literature references
  • Yam - A tool that builds a local RPM repository from ISO files and RPM packages.
  • yaGTD - A utility designed to make the management of your to-do list quick and easy.
  • yagg - Generates all strings of a user-specified length.
  • Yaccviso - Visualization tool for bison and yacc grammars
  • yabasic - Version of 'basic' that includes only the commonest, simplest elements
  • yChat - Chat server daemon
  • xzgv - Picture viewer for the X Window System
  • Xyz2lla - A program that converts XYZ to LLA coordinates.
  • Xxdiff - Graphical comparator and merge tool
  • Xwrits - Reminds you to take wrist breaks
  • xvkbd - Virtual keyboard program
  • xvidcap - Screen capture aplication
  • XTux - Network shoot-'em-up game featuring free software mascots
  • Xtraceroute - Graphical version of 'traceroute'
  • xtla - Emacs front-end to GNU Arch
  • XTide - Tide clock and tide predictor
  • xtermcontrol - Gives users dynamic control of XFree86 xterm properties
  • Xterm - Terminal emulator for the X Window System
  • xtctl - Sets and or changes xterm properties
  • xtalfind - Checks whether any XTAL is suitable for a HAM radio circuit
  • xtail - Watches file growth
  • xstroke - Unfinished gesture recognition program
  • xshogi - X window interface for GNU Shogi
  • xshipwars - Tee like functionality
  • Xsh - XML editing tool
  • xsd - XML Schema to C++ translator
  • Xscreensaver - Screen saver and locker for the X Window System
  • Xsane - Scanner-oriented frontend for SANE
  • XRoar - A Dragon 32/64 and Tandy Coco emulator.
  • Xrmap - Displays portions of the earth
  • xrebind - xrebind allows you to bind keys or buttons. These can be used to generate mouse motions, button presses or releases, key presses or releases, or to launch programs.
  • xpvm - Graphical console and monitor for PVM
  • xps - Displays Unix processes as a tree under X
  • X Python Newsreader - A multi-platform newsreader with Unicode support.
  • Xplanet - Draws the earth or other planets
  • xpenguins - Lets penguins walk on top of your windows
  • Xpdf - PDF file viewer
  • XPde - An XP-like desktop environment for GNU/Linux.
  • Xpath2rss - XPath to RSS scraper
  • xpaint - Image editor
  • Xpad - Virtual sticky notes
  • Extended Operating System Loader - Graphical boot loader
  • XOOPS - An extensible, OO (Object Oriented), easy to use dynamic web content management system, ideally for small to large dynamic community/blog/intra/corporate portals and much more
  • xnetintf - X application for managing network interfaces
  • Xnee - Records, distributes, and replays X11 protocol data - Part of the GNU Project
  • Xmsgd - Messaging daemon for the X Window System
  • X-Moto - A Motocross game.
  • Xmorph - Image morphing program - Part of the GNU Project
  • Xmmsctrl - Controls xmms from the command line
  • Xmms - GUI based mp3 player
  • xmms-syncup - Synchronizes the audio output of client players to a single server
  • Xmms-shell - Command line interface for 'xmms'
  • xmms-crossfade - An XMMS output plugin for crossfading and gapless output.
  • XMMS Announcer - A simple utility that prints the current track playing in XMMS.
  • xmlto - Converts an XML file into a specified format
  • xmlstarlet - Tools for working with XML documents and files
  • xmlmp - Facilitates writing *nix manpages using XML
  • xmlg - Splits an XML file into a TextArray and XML markup information
  • Xmldb - Three-tier application server
  • xmlclitools - Command line tools for manipulating XML data
  • xml2var - Converts XML tags to shell variables
  • Xmedcon - Medical image conversion utility and library
  • Xmcd - CD player utilities
  • xmail - Mail server
  • Xmahjongg - Mahjongg game
  • xlogmaster - Monitors logfiles and devices - Part of the GNU Project
  • xlog - Logs radio contacts
  • xlocate - XLocate is a configurable X front-end to the standard locate utilities, allowing more flexibility and ease of use.
  • xlit - Converts text from one writing system into another.
  • xlhtml - Convert Excel/PowerPoint to html
  • Xinfo - X window program for reading Info files
  • Xinetd - Secure replacement for 'inetd'
  • xine - Video player for Unix-like systems
  • xhkeys - Assigns actions to otherwise unused keys
  • Xhippo - Playlist manager - Part of the GNU Project
  • Xhdbench - Tests output speed of various devices
  • xgrabsc - Screen capture program
  • xgawk - Extensible GNU Awk, with XML, PostgreSQL, and MPFR
  • xfs - Journaling filesystem
  • Xfree86 - Free implementation of the X Windows System
  • xfontselector - Facilitates font selection for X Windows
  • XFmail - X11 email application
  • xfig - Drawing program for X Window system
  • xffm - Modular filemanager with a tree view and icon view
  • X File Explorer - A file manager for the X Window System.
  • xfce - Lightweight desktop environment
  • XFA - Portable finite state automata library
  • XenMan - GUI based xen management tool
  • Xem - Program to calculate Ph balance
  • xdiskusage - Displays disk space usage
  • Xdiary - Calendar/diary program
  • Xdefactor - Polish language project for small offices
  • xd3d - Simple scientific visualization tool
  • xcutmp3 - Frontend for cutmp3
  • Xcoral - Mouse-based text editor
  • X-Chat - Graphical IRC client
  • X-CD-Roast - CD creation tools
  • Xcave - Software to manage a wine cellar
  • Xboard - Graphical chessboard - Part of the GNU Project
  • Xbindkeys - Binds keys or mouse buttons to shell commands
  • Xbasic - Development environment
  • xaw3d - Toolkit that adds a 3D appearance and support for XPM images
  • X Automation Tools - Tools that control command line input to X
  • xautolock - Monitors console activity under the X window system
  • Xart - Paint program
  • Xapian and Omega - Information retrieval library and search engine.
  • xaos - Real-time fractal zoomer - Part of the GNU Project
  • xCHM - Graphical CHM viewer for *NIX
  • x86info - Displays diagnostic information about CPUs
  • x2vnc - Lets screens on two different computers act as one
  • x11vnc - Lets users work remotely with real X displays with any VNC viewer
  • dtrx - Intelligently extract many archive types
  • X-word - A GTK program for doing crosswords.
  • x-Desktop - Unifies different interfaces into a browser-only interface
  • Wyrm Tools - A suite of tools for any RPG system.
  • wyoEditor - Cross-platform editor based on the editor in Scintilla
  • Wyneken - Wyneken is a content-oriented text processor that makes your life as a student easier by allowing you to create and manage digital notebooks.
  • WxWindows - Cross-platform toolkit
  • wxweather - Reference implementation of the Open Weather Project system
  • wxRemind - A wxPython-based GUI for Remind.
  • wxChecksums - Calculates and verifies checksums
  • wx12Ton - Lets users work with music involving twelve-note series
  • wuja - An applet for integration of Google Calendar.
  • Wsmake - Website pre-processor
  • wsh - Remote shell that works via HTTP
  • Wreq - Trouble tracking system
  • WrapText - WrapText.c - naive, greedy, but flexible text wrapping function
  • wput - The opposite of wget.
  • Whois proxy - Perl whois tool
  • wormux - funny fight game on 2D maps
  • Workrave - Helps users prevent or recover from RSI
  • Workon - Sets up the environment to work on a CVS tree
  • WordGenerator - Generates words from a specification of syllable structure.
  • word2x - Word to HTML, LaTex, and ASCII converter
  • Woof (Web Offer One File) - Is a simple file sharing program with built in web server
  • womb - Repository for homeless code - Part of the GNU Project
  • wn - HTTP server
  • wmxkb - Shows and controls XKB groups
  • Wmweather+ - Weather app for windowmaker
  • Wmusic - Remote control for xmms
  • Wml - HTML generation toolkit
  • wmii - is a dynamic window manager for X11.
  • wmi - Lightweight window manager for X11
  • wmget - Runs and monitors multiple downloads
  • wmfire - Displays a burning fire to show the load on a machine
  • wmconfig - Menu generation tool for X window managers
  • wmakerconf - Configuration tool for the WindowMaker window manager
  • wmDrawer - Provides a drawer for launching applications
  • wlanmeter - Monitors the signal/noise level on wireless network interfaces
  • wl - Whitelist/blacklist for email
  • wixi - A personal wiki-like application for the desktop.
  • TuxGuitar - TuxGuitar is a multitrack guitar tablature editor and player written in Java-SWT, It can open GP3,GP4 and GP5 files
  • Wireshark - Network protocol analyzer
  • Wired - A professional music production and creation system.
  • Wipe - Secure file wiping utility
  • Wings3D - Is a polygon mesh modeller
  • Winefish - A LaTeX editor for experienced users.
  • wine - Wine is a Free and Open Source implementation of the Windows API on top of X and *nix.
  • Window Maker - Window manager for X Window System - Part of the GNU Project
  • WIMS - Hosts interactive mathematical activities
  • WikyBlog - A Bliki CMS (blog + wiki) written in PHP/MySQL.
  • WIKINDX - A multi-user bibliographic and quotations database and authoring system.
  • Wifi Radar - Connect and List local Wifi Networks
  • whtlist - Simple function to enforce whitelist (ensure that a string includes only certain characters) and blacklist (ensure that a string absolutely does not include certain characters).
  • Whois - Advanced and intelligent whois client
  • whitespace - Cleans up extraneous whitespace in source files
  • White_dune - Graphical VRML97 editor/animation tool
  • Which - Prints out full path of execuatbles - Part of the GNU Project
  • Wheretero - A tool to detect country from network information.
  • whatpix - Duplicate file finder.
  • Whatmask - Helps manipulate network settings
  • Wgrab - Automatically retrieves selected parts of Websites
  • Wget Script generator - Script generator for wget
  • Wget4web - Monitors download information through a browser
  • Wget - Retrieves files from the Web - Part of the GNU Project
  • WFlogs - Firewall log analysis tool
  • wesnoth - fantasy turn-based strategy game
  • WeOCR - A platform for building Web-enabled OCRs.
  • WendzelNNTPd - Is a simple USENET server with the goal of being as easy to use as possible.
  • Wellenreiter - An easy to use, GTK/Perl-based wireless sniffer/scanner with enhanced features.
  • weex - Remote maintenance utility
  • Weechat - Lightweight and extensible IRC client
  • Webwatcher - Tool for tracking Web content
  • WebVocab - A tool to study vocabulary while you surf the Web.
  • Easy SVN Browser - An SVN browser that works with minimal software dependencies.
  • Webrowse - Interacts between browser and other desktop components
  • Webminstats - Sysstats module for Webmin
  • Webmin - Web interface for Unix system administration
  • Webilder - Software that downloads wallpapers from Flickr and Webshots.
  • webfs - HTTP server for purely static content
  • Webcpp - Converts source code to HTML
  • WebCleaner - A filtering HTTP proxy.
  • webCDwriter - A tool for network CD/DVD writing.
  • Webcam_server - Streaming video server
  • WebCal - WebCal - Simple PHP Web Based Calendar.
  • Webbase - Web crawler
  • WebAPP - Web Automated Perl Portal. A community portal or content management system written in Perl.
  • Web Submission and Review Software - Web-based software package for submission and review of papers to academic conferences
  • Web of Life - Is a video game of life and death.
  • webAlbum - Generates Web-based photo and video albums
  • Web100 - Helps get 100% of the available bandwith for common TCP applications.
  • Web-bench - Simple web server benchark.
  • Wdm - Graphically handles login and authentication
  • wdiff - Front end to GNU 'diff' - Part of the GNU Project
  • wcd - Directory changer
  • Wcalc - Calculator
  • Wcal - Web-based calendar/planner
  • WBOSS - Web-based spell checker
  • wbar - An eye candy quick launch bar.
  • Wavelan-applet - Displays the signal strength of a WaveLan card
  • Wavbreaker - A tool to split wave files into multiple chunks
  • Waterworks - Realtime compositing system
  • Watchdog - Software watchdog daemon
  • WallpaperZapper - A GNOME background changer.
  • wallpaperChooser - A graphical wallpaper managing and setting application.
  • Wah!Cade - A GUI front-end to the xmame emulator for arcade games.
  • w98podfetch - A script for downloading podcast subscriptions.
  • w3pw - Password manager
  • w3perl - Web logfile analyser
  • w3m - Text mode browser
  • Vulture - An SSO Reverse Proxy based on Apache and mod_perl
  • Vulcan Chess - A chess variant inspired by a certain well-known sci-fi TV series.
  • vtracer - Verilog Testbench auxiliary tool
  • vtigerTE - Thunderbird/Mozilla extension for vtiger CRM
  • vtigerCRM - Web-based customer relationship management (CRM) software
  • vthrottle - SMTP throttling engine for Sendmail servers
  • Vstr - String library for network communications
  • vshnu - Visual shell
  • vsftpd - FTP server for *NIX-like systems
  • VRweb - Browser for 3D worlds and scenes
  • vreng - Software for interacting with virtual environments over the Internet
  • Vrcon - Utility for administering Half-Life servers
  • Vpopmail - Manages virtual domains and email accounts
  • Vp7wkp - Simulates radioactive decay
  • Vorbix - Graphical tools for Ogg Vorbis
  • Vorbistools - Tools for Ogg Vorbis
  • Volumevis - An application for easy high-quality display of volume datasets.
  • VoiceOne - A GUI interface to Asterisk PBX.
  • VoiceApp - Sound visualization application (Power spectrum via FFT)
  • Vocabumonkey - Software focused on language and math skills
  • vnstat - Network traffic monitor that uses the /proc filesystem to get information
  • VNet - Turns a single-user VRML world into a multi-user environment
  • VNCTracker - A way to keep track of dynamic IP addresses for easy VNC connections.
  • vncsnapshot - Takes a snapshot from a VNC server and save it as a JPEG
  • VNCcrack - A fast VNC password cracker.
  • Vnc - Lets you view and interact with a remote desktop
  • VM - Mail reader for Emacs
  • vlorb - CD to Ogg Vorbis ripper and encoder
  • vloopback - Device driver that generates video pipes
  • vlogger - Logger daemon for Apache
  • VisualOS - An educational visual simulator of an operating system
  • visprint - A visual fingerprint generator.
  • VisoHotlink - Visohotlink is a php/MySQL script that helps you to detect and manage hotlinks of your files, but also referers.
  • Vision Egg - A program that produces visual stimuli for vision research experiments.
  • Vis5D+ - Enhanced version of the Vis5dscientific visualization tool
  • vim2html - Converts vim files to HTML
  • Vim - a highly configurable text editor.
  • Vilno - data transformation, prepare data for analysis, use for statistics, reporting or ETL.
  • Vilistextum - HTML to text converter
  • vile - Vi-compatible text editor
  • viewglob - Provides additional shell information in graphical environments
  • vibtoolbox - Vibtoolbox is a set of command line tools for the analysis of vibration and acoustic test data.
  • VFU File Manager - Text-mode file manager
  • vexim - Manages multiple virtual mail domains
  • vevo - Software for writing video processor plugins
  • Vesta - Software configuration management system
  • Vertoo - Simple version support tool
  • Verbiste - A French conjugation system.
  • Ventilation - Journal Web site administration system
  • veejay - Video tracker/editing tool
  • ved - Small, fast screen-oriented text editor
  • Vectoroids - Vector-based asteroid-shooting game
  • vcp - Copies files and directories
  • VCD Imager - Free software (Super) video CD authoring solution - Part of the GNU Project
  • VBA Express - A VisualBoyAdvance frontend (to configure the emulator and play games easily).
  • Varnish - A high-performance HTTP accelerator.
  • Varkon - A parametric CAD-tool
  • Vallheru - A Web interface turn-based Polish MMORPG.
  • Valknut - DirectConnect client
  • Valgrind - Memory debugger
  • Vala - A compiler for the GObject type system.
  • Vacation - Email autoresponder
  • Micro Window-Gadgets - A lightweight windowing toolkit for C and X11.
  • OSSP uuid - Universally Unique Identifier (UUID) Toolkit
  • uucp - File copying program - Part of the GNU Project
  • utopia - The Utopia font family, including regular, italic, bold, and bold italic.
  • uSTL - a size-optimized STL implementation
  • uShare - Is a UPnP A/V Media Server.
  • userv - Security boundary tool - Part of the GNU Project
  • Userneu - Account management and creation tool
  • usermin - Web interface to *nix systems
  • Userinfo - Shows info about local users
  • Usenet Binary Harvester - A Perl script to find and download single and multi-part Usenet binaries.
  • Uschedule - Job scheduler
  • USBSink - A GNOME program for file synchronization over USB.
  • USBAuth - USBAuth provides passwordless authentication via USB storage devices.
  • Uri - Library that analyses and transforms URIs
  • upgrade.php - Provides PHP backward capability
  • updatedd - Client for updating a dynamic DNS
  • Info-ZIP- UnZip branch - Collection of archiving and compression tools
  • unrtf - Converts from RTF to other formats - Part of the GNU Project
  • unixODBC - Free implementation of the ODBC standard
  • Unix2tcp - Connection forwarder
  • Units - Unit conversion and calculation - Part of the GNU Project
  • Unit Circle - A program to show the relationship between angles and trigonometric functions.
  • Unison - File synchronizer
  • Uniread - Adds 'readline' support to any command line program
  • unieject - A multiplatform eject command.
  • Unicode Description Utilities - Utilities for analyzing Unicode-encoded text files
  • uni2ascii - A pair of programs that convert between Unicode and various 7-bit ASCII representations.
  • unac - Removes accents from strings
  • Umix - Adjusts soundcard volume and other features
  • UMFPACK - Routines for solving unsymmetric sparse linear systems
  • Umbrello UML Modeller - Creates diagrams of software and other systems
  • Ulim - Enforces resource limits on processes
  • UFTP - UFTP - UDP based FTP with multicast
  • ufraw - A utility to read and manipulate raw images from digital cameras.
  • fpm - Sets uniform permissions
  • UDT - A UDP-based data transfer library
  • udpcast - Install software via UDP multicast.
  • Ubuntu Center - A Web application for accessing your Ubuntu box online.
  • Uberkey - Keylogger for x86 systems
  • uTidyLib - Python wrapper for 'tidylib'
  • uControl - Tool for remapping keys
  • u61 - U61 is another block-based game.
  • u2nl - Listens on a TCP port and tunnels all connections transparently via an HTTPS proxy
  • typespeed - A typing speed tester.
  • txt2tags - Format conversion tool
  • Txt2man - Converts ASCII text to man page format
  • txt2graph.pl - Visualizes structures and dependencies between words
  • TwoLAME - An MPEG Audio Layer 2 encoder.
  • Twinkle - SIP VoIP Phone
  • Twin - Text-mode window environment
  • TWiki - Web-based collaboration platform
  • tvtime - TV and Video deinterlacer
  • tvmet -
  • tvlisting - Retrieves and displays TV listings from the Internet
  • TuxFighter - A shooter like Asteroids with Tux the penguin
  • TuxBank - A simple web based banking program
  • Tuxaator - Lightweight IRC bot/dictionary
  • Tutka - Tracker-style MIDI sequencer
  • Turtle Firewall - Firewall based on Linux kernel 2.4.x and iptables
  • Turma - A Gtk text search and replace utility.
  • tupd - Reports uptime statistics via HTTP
  • tumble - Converts TIFF (B&W only) and JPEG files into PDFs
  • Tulip - Produces large graphs
  • tub - Supports large dynamic arrays while still using shared libraries and dynamic linking
  • TTRM - Generator of musical arrays and search machine for pitch class sets
  • tthsum - Generates and checks TTH checksums
  • ttf2pt1 - Converts scalable and bitmapped fonts into PostScript Type 1
  • Tiny Tiny RSS - A Web-based AJAX news feed aggregator.
  • tstat - Collects performance indexes and statistical data about Internet traffic
  • tsemgr - Application to manage the Sony/Ericsson t68 mobile phone.
  • TimeSaver - A simple time management application.
  • TryChess - A multiplayer online chess game.
  • GNU trueprint - Prints source code to PostScript printers - Part of the GNU Project
  • Tripwire - Intrusion detection system
  • Trickle - Bandwidth shaper
  • TreeMaker - A program to desgin origami bases
  • tree - Recursive directory listing program
  • tree.pl - Creates sitemaps
  • Tree.hh - Templated tree class for C++
  • Trash Can - Command line recycle bin
  • Transmission - A lightweight BitTorrent client.
  • Transconnect - Lets users behind a proxy connect directly to the internet
  • transcode - Text console video-stream processing tool
  • tramp - Remote file editing software - Part of the GNU Project
  • Tram for Tulip - TRAM is a collection of modules for the sofware Tulip (see www.tulip-software.org), which is extended in this way to analyse and display trace-data.
  • Traindrive - A control program for model railroads.
  • Train Director - Train dispatch simulator
  • trafflogger - Conf-based traffic logger
  • tradeclient - E-mail client and PIM for X Window System
  • Trackballs - An arcade game similar to Marble Madness.
  • Traceroute - NANOG traceroute
  • Trac - Trac is an enhanced wiki and issue tracking system for software development projects.
  • tpp - Ncurses-based presentation tool
  • tpop3d - POP3 server
  • tpipe - Pipeline plumbing tool
  • pad - Small, lightweight text editor
  • ToutDoux - Project manager - Part of the GNU Project
  • Totem - The GNOME movie player
  • torrentocracy - An RSS aggregator and bittorrent downloader for MythTV.
  • TorK - A Tor Controller for KDE.
  • top - CPU usage display program
  • Tonality - Streamlines the B&W image conversion process
  • Tomboy - A linked note taking system
  • Tojo - Web-based collaborative journal system
  • togg - A simple Ogg Vorbis tag editor.
  • Tofuhunt - A "whats wrong with this picture?" game.
  • todolist.php - Web-based to do list
  • TOCHNOG - Finite element analysis program
  • TocaRaul! - A playlist manager intended to be used with icecast2 and ices2.
  • Toast - *nix package manager
  • tntnet - A Web application server for C++.
  • tnftp - Port of NetBSD's ftp program to other systems. Contains many advanced features compared to the traditional ftp program.
  • The Mana World - Project to create a free MMORPG
  • Tmv - Renames files/directories according to sed scripts
  • tlock - Terminal security program
  • tktimer - Is a program for recording elapsed time.
  • Tkhangman - GUI version of the classic 'hangman' game
  • tkgeomap - Tcl/tk commands for manipulating geographic data
  • TkDVD - A GUI for burning DVD+R/W -R/W discs.
  • tkdiff - Graphical diff and merge tool
  • Taekwon-Do Theory Assistant - A program that tests you on Taekwon-Do theory in preparation for your gradings.
  • tkabber - Jabber client
  • tk_Brief - GUI for facilitating letter writing using LaTeX
  • Tipograf - Frontend for a2ps
  • Tiobench - Threaded I/O bench for Linux
  • Tinyproxy - Lightweight HTTP proxy
  • TidyDoc - A documentation organizer
  • Tiny C Compiler -
  • Tiny SRP library - Stripped-down password authentication library
  • TinyDYN - Client and server software for dynamic DNS services
  • Tiny COBOL - COBOL compiler
  • TinTin++ - A console client to play MUDs.
  • tinc - Creates a secure private network between hosts
  • Tin - Text-based news reader
  • Timeshift - Performs calculations involving time
  • Timer Applet - A countdown timer applet for the GNOME panel.
  • Time - Reports the user, system, and real time used by a process - Part of the GNU Project
  • TightVNC - Enhanced version of VNC
  • Tiger - Performs security audits and acts as a host-based intrusion detection tool
  • tidylib - Library implementation of the 'tidy' program
  • tidy - Pulls out the significant entries from a group of standard entries
  • Thy - Lightweight HTTP daemon
  • Thunar - Light weight file manager
  • Thuban - Interactive GIS viewer
  • Threads - Library to make threading under C++ easier
  • Thought Bucket - A Web interface for storing random thoughts and ideas.
  • Theorur - A GTK2 GUI for Ogg/Theora live streaming.
  • Hitchhiker's Guide to the Internet - A German-speaking introduction to the technical aspects of the Internet.
  • Thumbnail AutoIndex - A thumbnail directory index generation PHP script.
  • Thales - IRC to MySQL gateway - Part of the GNU Project
  • tgrep - A grep for time specifications.
  • Tgif - Vector-based drawing tool that can pull drawings from the Web
  • Textutils - Text utilities
  • TextAnalyzer - Is a text analyzer tool that finds out words that are characteristic for a given input file.
  • Texinfo - Produces manuals, ASCII text, and on-line documentation - Part of the GNU Project
  • Tex2im - Converts LaTeX formulas into graphics
  • Testmail - Checks and filters email
  • Terraform - Fractal landscape generator/viewer
  • Termutils - Programs for controlling terminals - Part of the GNU Project
  • termlock - Blanks and locks a curses-compatible character terminal
  • terminatorX - Lets users "scratch" on digitally sampled audio data
  • Tent - PHP/SQL intranet application
  • Templeet - Template engine
  • tel - A little terminal-based phone book.
  • Teatime - Reminds you when your tea is ready
  • Teardrop - The personal meta search engine
  • tea - Simple editor that is particularly useful for HTML editing
  • Tdl - To-do list manager
  • Teacup - Helpdesk report management system
  • tcshrc - Config files that use the 'tcsh' shell
  • Tcsh - Shell compatible with the Berkeley shell
  • tcpxd - TCP/IP relay or proxy
  • tcptrack - Packet sniffer
  • Tcptraceroute - Traceroute implementation using TCP packets
  • Tcpspy - Logs information about incoming and outgoing connections
  • Tcpreplay - Lets users replay captured network traffic
  • TCP Re-engineering - Monitors and analyzes data transmitted via TCP
  • tcpdump - Tool for network monitoring and data acquisition
  • TCPDF - Is a Web-based assessment software well suited for both Internet and intranet environments.
  • tclpython - Lets users run Python code from within a TCL interpreter
  • tclperl - Lets users run Perl code from within a TCL interpreter
  • tclap - Simple library for parsing command line arguments
  • Tcl/Tk - Tcl/Tk scripting language
  • Tcl-tools - Tools for Tcl programmers
  • tbclock - A full-screen binary clock for the console terminal.
  • Taxbird - An Elster client (for German tax declarations).
  • Tau - Utility to track student attendance and scheduling
  • TaskFreak! - A simple to use but pretty and efficient task manager / todo list.
  • Tart - Backup utility
  • Tardy - Tar post-processor
  • GNU tar - Creates tar archives - Part of the GNU Project
  • TappyTux - An educational games suite for children.
  • Taper - Backup application
  • Tanne - Session management tool for HTTP
  • Tangerine - A music server using the DAAP protocol.
  • Tamil Encoding Converters - Programs for converting Tamil text among Unicode, ISCII, ITRANS, and TSCII
  • talkfilters - Translates English text into dialects - Part of the GNU Project
  • Tagreader - Reads HTML or XML files tag by tag
  • Tag Manager - IDE development library and utilities
  • taglog - Time and activity tracking application
  • taginfo - A small and simple MP3/Ogg/FLAC tag reader.
  • Tagclean - Maintains a collection of Ogg or MP3 files
  • tacshell - Drop-in replacement for sdshell
  • TabLaunch - A simple, lightweight, and cool-looking X application launch bar.
  • TA-Lib - A library of stock market technical analysis functions.
  • t337 - fast binary compression
  • t2t - Converts delimited text files to HTML tables
  • t-prot - Hides non-essential parts of emails and Usenet posts
  • systraq - Monitors a system and warns when system files change
  • Sysstat - The sar, mpstat, and iostat commands
  • sysprof - CPU profiler that profiles the entire system
  • syslog-ng - System logger that sorts based on message contents
  • sysindex - Provides information about system in both human and machine readable formats
  • sysfence - A system resources guard for GNU/Linux.
  • System call tracker - Intercepts and acts on system calls
  • syrep - Generic file repository synchronization tool
  • syntax-desktop - Web content management system
  • synergy2 - Lets users share a single mouse and keyboard between multiple computers
  • SyncEvolution - A tool that synchronizes addressbooks, calendars, and tasks lists with Evolution
  • Symposium - Simple chat application
  • Sympa - Mailing list manager
  • Symbio - Commenting system for Web sites and blogs
  • Sylpheed - GTK+ mail client
  • Syllogism Quizzer - This is a tool for learning syllogisms.
  • SXML - Defines and implements a mark-up language - Part of the GNU Project
  • Swpkg - Software packaging tools
  • Small Window Manager - Window manager for computers with little memory and small screens
  • Swish-E - Web site indexing software
  • SwiftSurf - HTTP proxy
  • swi-prolog - Comprehensive Prolog compiler and environment
  • swfw - Perl CGI Web page generator
  • Sweep - Sound wave editor
  • Sweater - Generic database front end
  • swbis - Extensions to the POSIX packaging standard - Part of the GNU Project
  • swapd - Dynamic swap creation daemon
  • sw-logger - GUI / cmd line stopwatch with many user-named lap timers. Save / restore CSV timing results; timer "runs" even when app isn't. Supports templates.
  • SVNAccess - A Web-based SVN access file manager.
  • svn2cl - Generates changelogs from a subversion repository
  • svk - Decentralized version control system
  • svg-to-png - Batch convert svg to png format
  • SVG-cards - A set of SVG playing cards.
  • sussen - Security scanner which remotely tests computers
  • Surfraw - Command line interface to the Web
  • SureInvoice - SureInvoice is an accounting and time management application for service oriented businesses. This Professional Services Automation software is simple to use but also very powerful.
  • surblhost - Command-line program that looks up hostnames in the Spam URI Realtime Blocklist (SURBL)
  • SuperTux - SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original SuperMario games.
  • Superswitcher - A more feature-ful replacement of the Alt-Tab window switching behavior.
  • superopt - Finds the shortest instruction sequence for a given function - Part of the GNU Project
  • Super-sed - Enhanced version of the sed text editor
  • Sunclock - Clock for the X Window System
  • sugerplum - Automated spam-poisoner
  • Sudoscript - Provides an audited root shell
  • Sudoku Sensei - A sudoku explainer C/C++ library with sample programs.
  • sudo - Gives limited root privileges
  • Subversion - Version control system
  • Subterfugue - System call tracing and rewriting utility
  • Subnet Mask Calculator - A PHP script to calculate subnet masks.
  • Submount - Automatically mounts/unmounts removable media devices
  • Subedit palyer - movie player with codec pack
  • Styx - Scanner/parser generator
  • stvremote - STVRemote for GNU/Linux is a software designed to control the SBIG STV CCD autoguider.
  • Sturmbahnfahrer - A simulated obstacle course for automobiles.
  • Stunnel - SSL encryption wrapper
  • strongSwan - Implementation of IPsec for GNU/Linux
  • stripmgr - Expanded version of "DailyStrips"
  • Stress - Simulates certain types of stress of a system
  • strec - Lets you record streams as MP3s
  • Streamtuner - Stream directory browser
  • straw - Desktop news aggregator for the GNOME
  • Strace - Debugging tool
  • stow - Manages installation process - Part of the GNU Project
  • storebackup - Disk to disk backup tool
  • Stoned - Curling simulation
  • stl2pov - Reads an STL file and outputs a POVray mesh
  • Stitch - Backup utility
  • stickystatus - Displays the sticky and mouse key status in a popup image.
  • Wiki on a Stick - A self-modifying one-HTML-file personal wiki.
  • Stereograph - Stereogram generator
  • Stenciltools - Tools for text generation and manipulation
  • Staypuft - Staypuft marshmallow-style font
  • Stax - A collection of falling-block game
  • StatsDawg - A suite for monitoring various aspects of a GNU/Linux system using RRDTool and PHP.
  • StatistX - GTK-based statistics program
  • Statist - Statistics program
  • Statfink - A Fantasy (American) Football statistics grabber and live scoring program.
  • StatEye - Determines web site traffic
  • Stat - Displays information about a file
  • stardict-ed - Fork of the StarDict dictionary project
  • StandardizeIPA - This program translates "North American IPA" in UTF-8 Unicode into the standard International Phonetic Alphabet.
  • Stand Alone Tray - A stand-alone notification area.
  • Ssync - Filesystem synchronization utility
  • sshpass - A non-interactive SSH password authentication method.
  • SSHMenu - A GNOME panel applet menu for making SSH connections.
  • sshdfilter - Blocks ssh brute force attacks
  • ssh-installkeys - Exports SSH public keys to specified sites
  • Srm - Command line compatible rm
  • sredird - Lets you share a serial port throughout a network
  • srcpd - Daemon for the Simple Railroad Command Protocol (SRCP)
  • src-highlite - Turns source code into a file with syntax highlighting - Part of the GNU Project
  • SquirrelMail - E-mail reader
  • Squirrelfax - Receives and sends faxes
  • Squirrel Shell - System shell
  • squidrunner -
  • Squid - Web proxy cache
  • Squid Graph - Squid logfile analyzer and traffic grapher.
  • SqueakGtk - An attempt to port the Gtk+ GUI to Smalltalk Squeak.
  • Sqlupdate - Generates scripts for updating MySQL databases
  • sql2tinydns - Manages DNS information and dumps it to a tinydns datafile
  • sql2class - Converts output from 'mysqldump' to C++ classes
  • Spyce - Python-based Web scripting
  • sptrace - Secure ptrace() module
  • Spruce - Email client
  • Spotter - Lets students check answers to math and science questions
  • SportsTracker - A tool for recording sport activities.
  • Splonk - Spam eliminator
  • Spline - Akima spline interpolation
  • Splice - A label maker for CDs, DAT tapes, 8mm tapes, and analog cassette tapes.
  • Spinner - Keeps telnet and ssh links from dropping
  • spin_feedback - Manages the parameters of an (X)HTML form
  • spin_auth - Authentication wrapper
  • spell - Spell checker - Part of the GNU Project
  • speex - Speech compression format - Part of the GNU Project
  • Speedy Make - http://www.speedymake.com/speedymake.zip
  • SpeedX - Racing game - Part of the GNU Project
  • speedupd - Performs maintenance tasks on php syslog viewer's database.
  • SpeedCrunch - A fast and compact calculator.
  • speechd-el - Emacs speech output interface
  • Spat - Lightweight messaging application
  • Spastic - Set of Filters for email
  • Sparklet - A multiplayer networking game.
  • Spam Trainer - A drag and drop spam filter trainer for GNOME.
  • spamresponder - Spamfilter that combines C/R with DNS validation
  • spammergrok - A tool for extracting URLs from spam mail and wasting their bandwidth.
  • Spaminator - Web interface for sendmail's anti-spam functionality
  • Spamcup - Spamcop command-line tool
  • spacechart - Displays the stars in space in 3D - Part of the GNU Project
  • Space Maze - A shooting game going around and within a maze in space.
  • Soya - Soya (also known as Soya 3D) is a high-level object oriented 3D engine for Python
  • Sox - Converts between various audio formats
  • sourceinstaller - Graphical tool for source package configuration, installation, tracking and removal - Part of the GNU Project
  • Source2html - Formats source code into hyperlinked Web pages
  • Sound Monitor - Shows esound output
  • SoundConverter - Converts audio formats within GNOME
  • sos - Aid for a crude "switch on strings" in standard C
  • soothsayer - An intelligent predictive text entry platform.
  • soniK - A digital audio editor.
  • GNU Songanizer - Script to organize a directory containing ogg and mp3 files. - Part of the GNU Project
  • Sonance - A GNOME audio player based on GStreamer.
  • GNU Solfege - Eartraining program for GNOME - Part of the GNU Project
  • softflowd - Software flow-based network monitor
  • sofia-sip - Sofia-SIP is a SIP User-Agent library, compliant with the IETF RFC3261 specification.
  • Sofa Media Center - Sofa is a media center aimed at easy usage for GNOME.
  • Sodipodi - Vector drawing applications
  • Social Networks Visualiser - A social networks visualizer.
  • Socklog - Small, secure replacement for syslogd
  • Socat - Relay for bidirectional data transfer
  • Security Officers Best Friend (SOBF Tool) - An information security risk management tool.
  • Snug - Project to develop a free version of Java Swing - Part of the GNU Project
  • Snow Path Formation Simulator - Graphically displays the formation of paths in the snow formed by people.
  • Snowlog - Web server access log browser and analyzer
  • Snortalog - Summarizes Snort logs
  • snort2pf - Automatically blocks bad hosts
  • Snort-rep - Snort reporting tool
  • Snippets - CGI quote of the day script
  • Snif - Automatically creates directory listings
  • snescom - A 65c816 (SNES, etc.) assembler.
  • snd - Sound editor
  • Snatcher - Full-text search engine for Japanese or English text
  • Snapshot - Scripts for maintaining a repository of directory snapshots
  • SnapMatcher - An application to identify near-identical or similar images in large collections
  • SnapLogic - SnapLogic transforms data into Data services using a RESTful architecture and built in Python
  • Snackware - A game in which programmers compete with each other.
  • snack - Commands for sound play/record and sound visualization
  • SNACC - ASN.1 to C or C++ compiler
  • Super Mario War - A Super Mario deathmatch game.
  • Smtpblock - Automatically detects and blocks open mail relays
  • smtm - Displays financial and stock related information
  • SmokePing - A network latency monitor similar to MRTG.
  • SMILutils - Tools for manipulating SMIL format files
  • smf-zombie - Sendmail filter that rejects spam and viruses from zombie PCs
  • SMBNetFS - A user-space filesystem for browsing a Samba network.
  • smbc - Text mode SMB network commander
  • Smb4k - An SMB share browser for KDE 3.x.x.
  • Smart TCL - Script for eggdrop bots
  • SmartTagFix - A utility that fills in missing ID3 tags intelligently.
  • SmartEiffel - Eiffel compiler - Part of the GNU Project
  • Smart Pointers - smart_ptr is a smart pointer policy class that can use different ownership logic and semantic polices, which allows the developer to get the best performance and/or interface for a particular requirement.
  • GNU Smalltalk - Implementation of the Smalltalk object oriented language - Part of the GNU Project
  • smake - 'make' implementation
  • Smail - Mail transport system
  • Slrn - S-lang newsreader
  • Sloth - Slows down a process
  • SLOCCount - Counts lines of code in a program
  • slln - Generic object serialization library for C++
  • SLiM - A simple login manager for X11.
  • Slides.sh - Produces simple HTML presentations from text
  • Slide2handout - Creates printable versions of PDF slides
  • slib - Portable scheme library - Part of the GNU Project
  • Slideshow Creator - A visual editor for dvd-slideshow.
  • Slash - News and message board
  • slapt-get - APT like system for Slackware package management
  • S-lang - C-like programming language
  • Snoopy Logger - Logs all executed commands
  • Skoosh - Sliding tile game
  • Skipstone - Browser that embeds Mozilla through libgtkembedmoz
  • Skipper - Full GUI accessibility for severely movement impaired people
  • scim - KDE input method platform
  • Sketch Library - This package provides implementations of various sketching techniques (a.k.a. summarization and synopsis data structures).
  • Sketch - Vector drawing program
  • skdetect - Detects SucKIT
  • Sjeng - Chess engine
  • Sitr - Knowledge Base
  • Sitecopy - Helps maintain remote web sites
  • SiteBar - Bookmark server for personal and team use
  • Sirobot - Recursively downloads Web pages
  • Sipsak - Tests SIP devices and applications
  • sipcalc - Advanced IP subnet calculator
  • SingIt Lyric Display - Displays song lyrics
  • singapore - Image gallery that does not require a database
  • SIMSYNCH - SIMSYNCH is a simulator for digital electronics at scales from chip to board.
  • sims - A program that produces graphs of GnuPG signature relationships.
  • Simple Spreadsheet - A Web-based spreadsheet program.
  • Simple Invoices - A clean, simple, and basic Web-based invoicing system.
  • Simple Groupware - A schema-based groupware with methods for Web apps.
  • simplebackup - Cross-platform backup program
  • Simkin for C++ - Scripting language for customizing C++ applications
  • Simdock - Is a fast and customizable dockbar for the desktop.
  • simple instant messaging - A simple console client for bitlbee instant messaging.
  • SilverStripe - SilverStripe is a free software / open source content management system (CMS) for creating and managing websites through a simple web interface.
  • Silky - A graphical SILC client.
  • sign - File signing and signature verification utility
  • SigmaPi Neurosimulator - A simulator for recurrent neural networks.
  • siggen - Email signature generator for encrypted ansi C signatures
  • Sigel - 3D robotic simulation
  • signature - Automatic signature generator
  • Siege - HTTP regression testing and benchmark utility
  • Sidebar In A Can - Randomly generates sidebars
  • Siag - Office suite
  • shush - Generic wrapper for cron jobs
  • shuriken - Uptime scheduler
  • shuffle - Utility for shuffling and/or printing arguments
  • Shtool - The GNU portable shell tool - Part of the GNU Project
  • Shtooka Explorer - Enables the browsing of audio collections of words (SWAC).
  • Shrinking Man - A diet tracker.
  • Show - Image viewer for X
  • Shoreline Firewall - Iptables based firewall
  • Shohei Mail - Web-based multi-user mail gateway.
  • Shogiopening - Graphical database for Shogi
  • shntool - WAVE data processing and reporting utility
  • Shn2make - Facilitates burning CD-Rs and encoding audio files
  • shishi - Free implementation of the Kerberos 5 network security system - Part of the GNU Project
  • shirc - Shell irc-like communication system
  • shiela - Access control and logging facility for CVS
  • Sherlog - Website log analyzer
  • Animal Shelter Manager - Software for managing animal sanctuaries and rescue shelters
  • shell-haskell - Library for communicating with other processes via Haskell code
  • Shed - Curses-based editor
  • shc - Produces C source code from a script specified on the command line
  • Sharutils - Creates and helps unpack shell archives - Part of the GNU Project
  • SharpConstruct - A real-time 3D sculpting program
  • Sharktorrent - A cross-platform BitTorrent client.
  • sharesecret - Splits and recalculates secrets
  • SharedAppVnc - Share application windows from your desktop to remote computers.
  • Shake - A Linux defragmenter.
  • shellutils - Command line utilities
  • SFT - File transfer program
  • Sfm - Tcl file manager for X11
  • sfind - Extended implementation of 'find'
  • Setapplet - Free implementation of the Set card game
  • SET - Its a PHP script to log search engines spider visits to web sites.
  • Serveez - Server framework - Part of the GNU Project
  • Serlvers - Serlvers is a set of Erlang modules designed to help in the implementation of IP services (i.e. TCP/IP or Internet servers).
  • Serel - Improves boot time
  • sercd - Serial port redirector
  • ser2net - Connects from a network connection to a serial port
  • sendpage - Paging system
  • Sendmail Confirmation System - Anti-spam system
  • sendmail - Mail transfer agent
  • senddiff - Automatically notifies users about CVS updates
  • Senddfbymail - Downloads, splits, and emails files
  • sendEmail - Lightweight command line-based SMTP email program
  • Send2KFlickr - A KFlickr KIPI plugin.
  • Sencap - Encapping software
  • seealso - Searches and prints references from manpages
  • Sedsed - Generates debug files in sed
  • Sede - Electronic voting software
  • Sed - A stream-oriented non-interactive text editor - Part of the GNU Project
  • secpwgen - Generates secure random passwords and passphrases
  • sebseti - A Seti@Home manager and cacher.
  • searchMonkey - Unix power search software.
  • search4files - A file search tool using different backends which is configurable via the command line.
  • Seahorse - GNOME frontend for GnuPG
  • SDLHana - An SDL-based Hanafuda game.
  • sdir - Scans the directory hierarchy.
  • sdfxCMS - sdfxCMS is a CMS.
  • sdd - Replacement for 'dd'
  • sdcv - Utility for working with StarDict-formatted dictionaries
  • Sdcdc - Build system for the Debian CD's covers and labels
  • sdcc - ANSI-C compiler
  • Sctplib - Userland implementation of the Stream Control Transmission Protocol (SCTP)
  • scsiadd - Lets you insert or remove SCSI devices on the fly
  • Scriptorium - Multi-lingual code library
  • Scribus - Page layout program
  • Scribes - A text editor for GNOME.
  • Screen - Runs separate screens on a single terminal - Part of the GNU Project
  • Screem - Web site editing/management program
  • scponly - Restricts remote shell access to "ls" and "scp" comands
  • Scout Tracker - A Scout rank tracker.
  • SCons Erlang - Scons Erlang is an add on for SCons, a make/autotools replacement, to compile Erlang projects.
  • scmail - Mail filter written in Scheme
  • SciGraphica - Data analysis and technical graphics
  • Scid - Chess database
  • Schrodinger - A fast implementation of the Dirac codec.
  • SchoolTool - A common information systems platform for school administration.
  • Schism Tracker - An Impulse Tracker clone.
  • Scheme 48 - Scheme implementation
  • Schedultils - 'chrt' and 'taskset'
  • schedtool - Alters or queries a process's scheduling policy
  • scdbackup - Simplified CD/DVD backup program
  • Scapy - An interactive packet manipulation tool.
  • scanlogd - TCP port scan detection tool
  • Scale2x - Increases the size of small bitmaps without blurring the images
  • sc - Station controller that interfaces with semiconductor manufacturing equipment
  • Steel Bank Common Lisp - Development environment for Common Lisp
  • sbcd - Curses CD player
  • sawfish - Window manager
  • savIRC - IRC client
  • GNU sauce - Anti-spam server - Part of the GNU Project
  • sather - Object-oriented language - Part of the GNU Project
  • Sarah - File manager
  • SAPID Inline CMS - SAPID is a CMS for creating and managing websites
  • sanity.pl - Renames files to a sane name
  • SANE - API that provides access to raster image scanner hardware
  • sample_load - Extremely flexible load logger
  • Samhain - File system integrity checker
  • Sambascan2 - A tool that scans SMB networks for shares using Samba.
  • SAMBA - File-sharing implementation
  • sam2p - Converts raster images to Adobe PostScript or PDF files
  • sakura - A terminal emulator based on the VTE library.
  • Sahana Disaster Management System - A disaster management system.
  • sage - SAGE is free and open software that supports research and teaching in algebra, geometry, number theory, cryptography, etc.
  • Sagasu - Finds strings in multiple files
  • SafetyNet - Keeps critical processes running
  • Safecat - Copies standard input to a qmail-style maildir
  • Sadlittlewebjournal - Weblog with ASCII interface
  • Small Arms Ballistics - Ballistics calculator for small arms fire
  • rxvt - Xterm replacement that uses less memory
  • Rxvt-unicode - Unicode clone of the terminal emulator rxvt
  • Rx - Free regex library
  • rws - Small, fast webserver
  • rwhois.py - Performs recursive whois queries
  • rwdtinker - Ruby application framework that uses the RubyWebDialogs GUI
  • rwdshell - Runs shell commands in a Web browser
  • RVK_Manager_script_for_Blender - Python script to transfer Relative Vertex Keys from a Blender Object to another.
  • Ruport - A Ruby report generation framework.
  • runwig - Runtime system for interactive Web services
  • runmaint - Shell script for invoking regular jobs
  • runit - Replacement for SysV-init and other init schemes
  • Run - Controls CPU biasing of processes
  • Rumor - MIDI keyboard to Lilypond converter
  • ruli - Library for querying DNS SRV resource records
  • rubyzip - Ruby module for reading and writing zip files
  • Ruby/RSS - Object oriented Ruby library for manipulating RSSs
  • Ruby - Object-oriented programming language
  • Ruby update - Helps keep packages up to date
  • Ruby/Amazon - A Ruby language interface to Amazon Web Services.
  • Rubrica - Address book
  • Rubber - Building system for LaTeX documents
  • Request Tracker - Trouble ticketing system
  • rTorrent - A console-based BitTorrent client.
  • RTF to HTML - Converts RTF files to HTML files
  • rtf-converter - RTF to HTML converter
  • rsyslogd - Enhanced 'syslogd'
  • Rsync Vault Manager - Automated multiple client backup manager
  • rsyncrypto - Synchronizes encrypted material to another machine
  • rsyncbackup - Schedules backups using rsync
  • Rsync - FTP program to keep remote files in synch
  • rsync-incr - Performs automated, unattended, incremental, disk to disk backups
  • Reliable SSH Tunnel - Provides secure port forwarding
  • RSS-Planet - An RSS newsmapper for xplanet.
  • Rssh - Gives users access to a system via scp or sftp only
  • rss2admins - Generates an RSS feed from your (log) files.
  • rss2imap - A tool which gets RSS articles from the Web and delivers them to an IMAP server.
  • rsnapshot - Makes periodic snapshots of local machines and remote machines
  • rsaver - Simple X Screensaver
  • rrs - Connects out to rrs in listen mode
  • Really Rather Good Battles In Space - A real time strategy game with fleets of spaceships.
  • rrdutils - Tools for creating and graphing RRD files
  • RRD Tool - Stores and displays time-series data
  • rpsl - Scripts that integrate the GNU autotools and pkg-config for build management
  • Rproxy - Lets a server download a diff to a previously cached version of a Web page
  • Rpncalc - RPN calculator emulating H-P 28S
  • RPM Wizard - An easy-to-use RPM installer.
  • Rpmstatus - Shows which RPM packages are installed on machines
  • Rpmrebuild - Builds RPM files
  • rpmlint - RPM error checker
  • rpm-get - RPM management application
  • rp-pppoe - PPPoE client and server suite
  • Roxen - HTTP server
  • Rox - Graphical desktop
  • rottlog - Replacement for Red Hat's 'logrotate.' - Part of the GNU Project
  • Rotter - A transmission recording and audio logger for JACK.
  • rotoscope - A program to rotoscope images.
  • rospell - A programming text editor.
  • Rosegarden - MIDI sequencer and musical notation editor
  • rope - Iptables packet match module scripting language
  • rootsh - Logs keystrokes and output to a file and/or syslog
  • root - Data analysis package developed at CERN.
  • Root-tail - Prints text directly to the X11 root window
  • roll - A command-line dice roller.
  • Rocks - Protects sockets-based applications from network failures
  • RoadMap - A car navigation system for Unix and PocketPC.
  • rlwrap - A readline wrapper.
  • rlpr - Facilitates printing to a local printer
  • rlib - Creates reports from XML definition files
  • Rippy the Aggregator - Lightweight RSS aggregator
  • ripperX - Rips CD audio and encodes mp3s
  • RipOff CD Ripper - A simple GTK+ based CD ripper.
  • ripit - Wrapper for various ripping/encoding/tagging programs
  • ripMIME - Extracts attachments from email
  • Rip - Rips CD track to either MP3 or Ogg Vorbis files
  • Ringlink - Tools for running Web rings
  • RIGEL - Representation-Independant Genetic Engine Library
  • Rob's Iconbox - An icon box based on Enlightenment's iconbox.
  • rlCMP - Remotely reboots a hung machine
  • Rhythmbox - Integrated music management application
  • Rhup - Checks Red Hat system configuration against an update mirror
  • RHIDE - IDE for DJGPP
  • Rh-errata - Maintains a Red Hat system
  • rfs - Creates and updates a local spare system disk
  • RSS Feeder Management - Manages RSS feeders
  • rfind - Indexes the filenames of a given directory
  • rfc2mib - Extracts MIB, PIB, and ASN.1 modules from an RFC document
  • Rexima - Curses-based interactive mixer
  • rewrap - Rewraps paragraphs
  • Revelation - Password manager for GNOME 2
  • Reveal - Replaces tags in a file by text or file content
  • Retroshare Instant Messenger - Share and communicate securely with a serverless instant messenger
  • retawq - Multi-threaded web browser for text terminals
  • Re-Tail - An intelligent incremental logfile reader.
  • Resume - Uses include files and CSS to build and format an online resume
  • Reqtool - Tool for managing e-mail requests
  • Reportdhcp - CGI reporting tool for ISC DHCPD lease file stats
  • replace - Replaces strings in files or from standard output
  • Rep-gtk - GTK+/libglade/GNOME language binding for librep
  • Renattach - Identifies and acts on potentially dangerous e-mail attachments
  • renameutils - Programs to make renaming of files easier
  • remstats - Gathers, monitors, and maintains data from servers and routers
  • Remote_Update - Automates remote administration tasks
  • remind - Calendar/reminder program
  • remerge - Browser-based multi-distro package management frontend.
  • remake - A version of GNU Make with comprehensible tracing and a debugger.
  • reloc - Loads executable code into a running application
  • Relax log analyzer - Web server log analyzer
  • regexxer - GUI search/replace tool
  • Regex-markup - Regular-expression based text markup
  • RefSense - A command line interface to PubMed.
  • Refocus - Sharpens digital images
  • Reflect - Symlink-style package management tool
  • Referencer - A document organiser and bibliography manager
  • refbase - Web-based bibliographic database
  • Reed - Autoscroller
  • RedShift - An OpenGL/SDL flight simulator.
  • redet - Tool for constructing and executing regular expressions
  • Recount - Online voting System
  • Recode - Front end to the 'recode' translation library - Part of the GNU Project
  • Reciteword - Program to learn the English language
  • Relax and Recover - A disaster recovery framework.
  • realcap - Captures streams from realplayer
  • Readline - Lets users edit command lines as they are typed in - Part of the GNU Project
  • AJAX Book Reader - A Web application for displaying large texts one page at a time.
  • read4me - Decides how likely it is that you will like a given RSS feed
  • Regular Expression Graphing Program - A regular expression graphing program.
  • Rdiff-backup - Backs up one directory to another
  • rdate - Retrieves the date and time from other machines
  • RCS - Version control and project management software - Part of the GNU Project
  • rComics - A comic fetching script.
  • rcms - content-management-system
  • Rblcheck - Performs lookups in RBL spam-blocking lists
  • rbMyXml - Generates XML data files from generic SQL queries
  • rb.log - Weblogger written in Ruby
  • Rawstudio - A raw-image converter.
  • rawdog - RSS aggregator
  • Ratpoison - Simple window manager
  • rate - Monitors and analyzes router traffic
  • RapidSVN - Multi-platform GUI front-end for Subversion.
  • randpass - Generates random passwords
  • Randomsig - Produces random signatures
  • Ragel State Machine Compiler - Compiles finite state machines from regular languages into runnable C code
  • radmind - Tools for remote administration
  • Radius - Remote authentication and accounting system - Part of the GNU Project
  • radiocheckbox - Easy to handle the inputs with radio and checkboxes in forms.
  • r3151_10 - genetic dictionary set of routines extracts repeating numerical groups of data from dna measurement series
  • quotatool - Sets Linux filesystems quotas from the command line
  • Quod Libet - A music player and tagging program.
  • quingy - Framebuffer based getty replacement/session manager
  • Quilt - Patch management tool
  • Quicktables - Iptables firewall/NAT script generator
  • Quh - Quh aims to play everything that makes noise
  • Queue - Batch processing and local rsh replacement system - Part of the GNU Project
  • Quat - Generates 3D fractals
  • QuantLib - Library for quantative finance calculations
  • Quagga - Back-end software for the FSF's Directory of Free Software - Part of the GNU Project
  • Qtstalker - Stock and commodity market charting and technical analysis.
  • Qtpfsgui - Is a graphical user interface that enables users to work on HDR images.
  • QtiPlot - A clone of Origin for data analysis and scientific plotting.
  • Texmaker - A LaTeX development environment.
  • QSvn - QSvn is a cross platform native Subversion GUI client
  • QSite - This is a framework for serving web pages. Instead of loading individual static HTML pages, a Perl script is ran that loads them dynamically, insuring a richer web experience for the user and an easier time for the developer.
  • qscheme - Implementation of Scheme written in C
  • Qps-h - A GUI version of ps and top a process monitoring tool.
  • QPictureDownloader - QPictureDownloader can download at once every image linked by a web page.
  • Qmail-Scanner - Content scanner for qmail
  • qmailadmin - Web interface for managing virtual domains and email accounts
  • qmHandle - Manages the qmail message queue
  • Qmail-masq - Masks an internal mail address
  • Qexo - XQuery to Java compiler - Part of the GNU Project
  • 'Q' DVD-Author - GUI for dvdauthor
  • qdu - Graphical disk usage utility
  • qconfirm - Delivery confirmation process for email
  • QComicBook - A viewer for comic book archives.
  • Qastrocam - Video capture program
  • Qanava - A graph drawing library for Qt.
  • Qalculate - A modern multi-purpose desktop calculator for GNU/Linux
  • qDecoder - C library for creating CGI software
  • pyWings - Consult the Newwings oracle.
  • PyTodo - A program for managing todo lists.
  • PythoPhotoPod - Python-based GTK+ GUI for synchronizing photos and photo albums with your pod with a color display
  • Pythoneol - An program for helping English speakers to learn Spanish.
  • Python-stablesort - Python mergesort application
  • pysync - Implementation of the rsync algorithm in Python
  • pysycache - A program to teach kids how to move the mouse.
  • PyScript - A Python module for producing PostScript graphics.
  • Python rope - A Python IDE aimed at providing a rich set of software refactorings.
  • PyPIV - Is a Python clone of a Matlab toolbox for PIV (Particle Image Velocimetry) analysis
  • PyPar2 - A par2 frontend.
  • pynumwords - A library that transforms numbers into human words.
  • Pyne - Offline newsreader and emailer
  • Pynakotheka - A simple script which generates static HTML photo albums.
  • PyMediaServer - A UPnP-based media server for use with a Netgear MP101.
  • pymad - Python wrapper for the MPEG Audio Decoder library
  • Pylize - Creates on-screen presentations
  • Little Black Book - An interactive contact manager.
  • PyKaraoke - A cross-platform CDG/MIDI/MPEG karaoke player.
  • pyjamas - A toolkit and library for writing AJAX applications in Python.
  • PyInstaller - A program that packages Python programs into stand-alone executables.
  • PyGSL - Python interface for GNU Scientific Library
  • Pygmy - Gnome mail client written in Python
  • Pygame - Python modules for writing games
  • PyEximon - A monitor/manager for Exim MTA
  • pydance - Free version of DDR
  • pycrc - A parametrizable Cyclic Redundancy Check (CRC) calculation utility and C source code generator.
  • pyChing - Cast and interpret I Ching hexagrams
  • PyChem - A cross-platform multivariate analysis package, including a graphical user interface
  • Pycage - Automation engine
  • pyc - Compiles Python source code to Python bytecode
  • PyBridge - An online bridge game.
  • pyblosxom - CGI-based Weblog program
  • Pybliographer - Manages bibliographic databases
  • pyao - Wrapper for the 'ao' library
  • pyRenamer - Is a mass file renamer written in PyGTK
  • pyNeighborhood - GTK+ 2 front-end for Samba client tools.
  • pyIrcServer - Powerful and very customizable IRCd
  • pyGnuTLS - Python wrapper for the GnuTLS library
  • pyFind - Find File utility for GNOME
  • py-acqua - Allows you to monitor your aquarium
  • Pwytter - Is a Twitter GUI client
  • Pwm - Lightweight window manager with frames
  • Pwdutils - Utilities for managing the passwd and shadow user information
  • passwdGen - Generates random passwords
  • pvswitch - Lets users use different program installations on one machine
  • Photovault - An image organization application for photographers.
  • Pure FTP server - FTP server
  • pucko - Ncurses music player
  • Publimark - A public key steganographic tool for audio.
  • PTypes - Alternative to STL with multithreading and networking
  • Ptx - Index generator - Part of the GNU Project
  • ptmalloc2 - Dynamic memory allocator
  • Pthrlib - Library and toolkit for writing Web servers
  • Pth - GNU Portable Threads library - Part of the GNU Project
  • Psychopg - PostgreSQL database adapter for Python
  • psyced - Distributed chat & IM system supporting IRC, Jabber, telnet, Web chat, and PSYC.
  • psutils - Utilities for PostScript printing
  • pssh - Parallel versions of OpenSSH tools
  • PlayStation Portable Video Converter - A FFMPEG front-end for converting video files for the PSP.
  • PSPP - Statistics package - Part of the GNU Project
  • Pspell - Generic interface for spell checker libraries
  • P'snap - A notification area utility that shows the ten newest releases at freshmeat.net.
  • Psmon - Process monitor
  • psmisc - Proc filesystem tools
  • Psipuss - Is an images upload script
  • pseudo-cron - Lets users run cron jobs on a Website without shell access
  • Port Scan Attack Detector - Detects port scans
  • ps-watcher -
  • protoize - Creates or removes prototypes from C code - Part of the GNU Project
  • Protoeditor - A small PHP debugger client.
  • Proto - Tools to find function prototypes - Part of the GNU Project
  • protector - E-mail virus blockade
  • ProMP3 - Web-based mp3 jukebox. Using xmms or stream.
  • prokyon3 - An MP3/Ogg Vorbis/FLAC manager and tag editor.
  • Projinfo - A program to retrieve project information from Web sites.
  • Project Earth - A cross-platform file indexer.
  • Programmable Software IDE - Developing an enforceable software engineering quality assurance program
  • Profoil-WWW - Wind tunnel data analyzer
  • procwatch - Watches a /proc filesystem for new messages
  • procps - Utilties that monitor system status
  • Procman - Process viewer and system monitor
  • Procmail - E-mail processor
  • proSilla - Speeds up file transfers
  • pro-search - Crawls FTP servers and SMB shares and DC nets and stores the information it finds to a database
  • Privoxy - Web proxy with advanced filtering capabilities
  • privbind - A tool to provide privileged port binding for unprivileged programs.
  • PrimaGIS - A collaborative Web mapping application for Zope and Plone.
  • Prima - Perl toolkit for GUI development
  • preview-latex - Embeds LaTeX environments into Emacs source buffers
  • Prevayler - Object persistence system orders of magnitude faster and simpler than a traditional DBMS
  • PRepS - Bug tracking system
  • prcs - Project Revision Control System
  • Praya - GUI interface for various messaging protocols
  • PPTS - Tracks off-site employees
  • pppoesk - A program to terminate bogus PPPoE sessions.
  • ppplog - Keeps track of PPP online sessions
  • ppp - Connects machines to the Internet through dialup lines
  • ppm2html - Converts an RGB PPM image to an HTML page
  • ppgplot - Provides Python bindings to the PGPLOT graphics library
  • Ppa - Accounting system for Internet cafes
  • PowerGuru - Powerguru is a a monitoring, data logging, and remote control application for power generation products used for renewable energy.
  • Power Daemon - Monitors your UPS and shuts it down if needed
  • Pounder - Tests Java GUIs
  • Pound - Reverse HTTP proxy, load balancer, and SSL wrapper
  • potracegui - GUI for the 'potrace' package
  • potrace - Converts bitmaps into vector graphics
  • PostgreSQL - A robust SQL Object-Relational Database
  • Postfix - Mail transport agent
  • Poster - Resizes PostScript files for easier printing
  • Portmon - Network monitor
  • Compute Portal Project - A Web-based front end to a computer resource.
  • Popt - Library for parsing command line options
  • Popsneaker - Remotely filters POP3 email accounts
  • Poppy - Retrieves email headers
  • Popper - Web-based POP3 mail client
  • pop2imap - Facilitates incremental POP to IMAP transfers
  • Pootypedia - A tool for tracking your end users' hardware.
  • polyxmass - Mass spectrometric framework for simulation and analysis of mass spectrometric data of (bio-)polymers - Part of the GNU Project
  • Polipo - Lightweight caching Web proxy
  • policyd - Anti-spam plugin for Postfix
  • policyd-weight - Weighted postfix-policy-daemon in perl to score DNSBLs (RBL/RHSBL), HELO, MAIL FROM, Client IP Addresses at RCPT TO stage.
  • Poker3D - Poker server and client
  • poker-network - Poker server, client library, abstract user interface library, and client
  • poker-engine - Library that implements poker rules
  • Poink - TCP/IP-based ping implementation
  • Pogo - Launcher for X11
  • PodMail - An application that generates podcasts from Asterisk Voicemail.
  • PodFetch - A tool for viewing RSS, weather, and more on your iPod.
  • POC-CMS - Content Management System - CMS
  • poEdit - Gettext catalogs (.po files) editor
  • po2c - Converts .po files to C source code
  • Pngcrush - Compression utility for PNG images
  • Pngcheck - PNG integrity tester and dumper/debugger
  • pnet - Free software tools to build and execute .NET applications
  • Pmidi - Play MIDI files through the ALSA sequencer
  • PMbyAS - Activity based management system.
  • pmatch - Alternative to 'grep'
  • pmacct - Gathers IP traffic information
  • plugdaemon - Load-balancing "plug" proxy
  • Plotutils - Plotting and graphics utilities - Part of the GNU Project
  • Ploticus - Plotting/data display package
  • Plone - Content management system
  • Plib - Portable game libraries
  • Pliant - Programming language framework
  • Plex 86 - PC virtualization program to run x86 operating systems
  • Playmidi - MIDI player for GUS, FM, and external MIDI devices
  • Plash - A sandbox for running GNU/Linux programs with minimum privilege/authority.
  • PLANster - A Web tool to coordinate virtually anything.
  • Planner - Planner is the GNOME project management tool.
  • Plait - A program that builds playlists and submits them to a music player.
  • pkpgcounter - Parses files and outputs the number of pages needed to print them
  • PKP (Pop Killer Portal) - Allows novices to build their own website.
  • Pkgutils - Utilities for manipulating software packages
  • pkg-config - Manages library compile/link flags
  • pkdump - Detects connection attempts
  • PJSIP and PJMEDIA - A SIP and media stack with a small footprint and very portable.
  • pjirc - Lightweight IRC applet
  • PJ - Toolkit for creating and manipulating PDF documents
  • pixie - Photorealistic renderer
  • PiTiVi - A non-linear video editor
  • Pitchtune - Musical instrument tuning program
  • pitchfork - A Web interface to musicpd.
  • pircstats - IRC network statistics bot
  • PIPS - Converts data between formats - Part of the GNU Project
  • GNU Pipo - A GNU Bulletion Board System - Part of the GNU Project
  • Pipemeter - Shows the flows of data from input to output
  • Pioneers - A clone of the "Settlers of Catan" game.
  • Pinpin Content - A lightweight CMS.
  • Pinot - Metasearch desktop application
  • Pink - IRC bot
  • Pingus - Pingus is a free Lemmings clone for GNU/Linux
  • Ping - Tests whether or not a give host is online
  • Pinfo - Ncurses based info documentation browser
  • Emilia Pinball Project - A pinball game for GNU/Linux.
  • Pimentech-dbutils - Tools for database design
  • PILA - Software to run a bookstore
  • PIKT - System monitoring tool
  • piksel - Framework of video tools and libraries
  • Pidgin - GTK-based Instant Messenger
  • Picview - Image preview and viewing program for GNOME
  • PicoForge - Collaborative work platform (forge) integrating libre software applications
  • picocom - Minimal dumb-terminal emulation program
  • picoSQL - A lightweight SQL-based, multi-user, client/server RDBMS
  • PicBook - Automatically produces an HTML album of your images
  • Picalo - Data Analysis Software
  • Phylographer - Visualizes evolutionary relationships
  • phpxmail - GUI for the Xmail administration extensions
  • PHPX - Web content management system
  • phpwebapp - Facilitates building PHP Web applications based on relational databases
  • phpVideoPro - A Web-based VideoTape/VideoCD/DVD manager.
  • phpUserTrack - Software to track user habits.
  • phptelemeter - A script that reads ISP quota meter pages.
  • php-syslog-ng - Front-end for viewing syslog-ng messages logged to MySQL in real-time
  • PHP Submit - Automated search engine submission script
  • phpsitestats - Website monitoring and statistics software
  • phpprintipp - PHP Library implementing Internet Printing Protocol on client side
  • phppdflib - Dynamically generates PDF files
  • phpop - Sends mail through a browser
  • phpMyRecipes - A recipe database.
  • phpMyBackupPro - An OS-independent, easy-to-use MySQL backup tool.
  • phpMyAdmin - Handles the basic administration of MySQL over the Web.
  • phpman - PHP/MySQL-based system for publishing manuals and documentation
  • Phpmailer - PHP email client
  • PhpIPManagement - Is a complete IPv4 IPAM (IP address management) suite
  • PHP GroupWare - Groupware suite - Part of the GNU Project
  • phpgrabcomics - Retrieves and saves comics from the Web - Part of the GNU Project
  • phpFreeChat - php Free chat is a free, simple to install, fast and customizable chat server that uses a simple filesystem for message and nickname storage.
  • phpDiplomacy - An implementation of the popular multiplayer board game, Diplomacy.
  • phpcollab - Groupware project
  • php-Brainfuck - PHP interpreter for Brainfuck
  • phpagi - PHP class for writing Asterisk AGI scripts
  • php syslog viewer - Is a web application viewing and searching system logs stored in a MySQL database.
  • php_imagick - Makes ImageMagick available from wthin PHP scripts
  • phpWebThings - PHP classes for creating a Web site
  • phpWX - Displays current weather conditions
  • phpThumb() - Thumbnail generator
  • phpSupport - Trouble ticket system
  • phpSera - Search engine ranking analysis tool
  • phpScheduleIt - Web-based reservation system
  • phpSQLViewer - Web interface for SQL databases and tables
  • phpPgAdmin - Web-based administration tool for PostgreSQL
  • phpPackage - Automatically builds distribution scripts for PHP software
  • phpMyVisites - Web traffic analyzer with detailed reports and advanced graphics
  • phpMyLinks - Script for managing HTTP URLs
  • phpMyFAQ - Database-driven FAQ system
  • phpMyBlacklist - Sets up and automates the administration of a email blacklist
  • phpMp - Web interface for Music Player Daemon (MPD)
  • phpMailAdmin - Web-based mail administration interface
  • phpLinkValidator - Validates links in HTML documents
  • phpHtmlLib - Classes and library functions that build, debug, and render XML, HTML, XHTML, and WAP/WML
  • phpGiggle - Performs search and replace in an HTML document
  • phpCodeGenie - Generates code for PHP/MySQL applications
  • PhpCache - Lets you cache blocks of code on pages
  • phpBugTracker - Bug tracking system
  • phpBBBlog - Combination of a forum and a blog
  • phpBB - UBB-style dissussion board
  • php3guest - Multilingual Web guestbook
  • PHP - Scripting language
  • php-residence - A Web-based rental property management system.
  • php-pimentcore - Web interface to any PostgreSQL/pimentech-dbutils database
  • Photoshrink - Creates thumbnails and writes the supporting Web pages
  • Photoseek - Image management system
  • MIT Photonic Bands - Computes photonic band structures
  • phorum - Web-based discussion software in PHP
  • PhonoRipper - A GUI tool for creating audio CDs from analog sources.
  • Phaser - CD burning tool
  • Pharch - Lets users place their photo archive on the Web
  • phantom security - Home security system - Part of the GNU Project
  • phantom_home - Home automation system - Part of the GNU Project
  • Penguin Greetings - Internet greeting card application
  • Program Guard - A tool that allows users to control which programs have access to the Internet.
  • pgcalc - Scientific calculator for KDE
  • pgRequestTrackerReport - Generates reports for Request Tracker
  • pftpd - Anonymous FTP daemon
  • pfqueue - A console-based tool for managing Postfix queued messages.
  • Pfm - Terminal based file manager
  • pfflowd - Datagram export for the PF packet filter
  • pfaedit - Outline font editor
  • pf2x - Converts pflog output into various formats
  • Perltidy - Perl code indenter and beautifier
  • Perlfect - Web site indexing and searching application
  • Perlbot - IRC bot
  • Perl - Scripting language
  • perl-reference - Displays Perl reference documentation
  • Pengupop - An online multiplayer clone of Frozen-Bubble.
  • Penetrator - Indexes big trees
  • Pen - Load balancer for TCP protocols
  • Personal Expenses Manager - Is a command line accounting program
  • Peephole - Checks mailboxes and harvests the last few messages
  • Peep - Allows real-time aural monitoring of network information
  • Peagle - A Web front end for the Beagle Desktop Search.
  • Peacock - HTML Editor for GTK+/GNOME
  • Pea-Peach - OS-portable archiving software offering flexible security options and authenticated encryption
  • pdumpfs - Simple daily backup system
  • pdp - Packet processing library for PureData
  • pdnsd - Proxy DNS server
  • PowerDNS Recursor - An advanced, high-performance, and secure recursing nameserver.
  • pdksh - Public Domain version of the Korn shell
  • pdftk - Toolkit for working with PDF documents
  • PDF Editor - A GUI editor for manipulating PDF documents
  • PDF Cube - A way to display your PDF presentation on a rotating OpenGL cube.
  • pdfTeX - Creates and enhances PDF output from TeX source files
  • pdc - Desktop calculator designed for programmers
  • pdbv - Generates an HTML view of an RPM or a dpkg database
  • pd - Replacement for 'ls'
  • pcre++ - C++ wrapper-class for the PCRE library
  • PCRE - Library of Perl-compatible regular expressions
  • pcopy - Tool for large disk to disk copying
  • PCMan File Manager - A fast and lightweight file manager developed with GTK+ 2.
  • PCI Utilities - Utilities dealing with the PCI bus
  • PCB - Designs printed circuit board layouts - Part of the GNU Project
  • Pcal - Prints PostScript or HTML calendars
  • Project-based Calendaring System - A calendaring system useful for project managers and groupware use.
  • PBButtonsd - An Apple PowerBook hardware control and power management daemon.
  • payrollbash - A Payroll system for companies based in the United Kingdom.
  • Debt Payoff Calculator - A program that calculates a debt payoff schedule.
  • Paymaster - A payroll and HR database application
  • Paxutils - Tool to manage file archives - Part of the GNU Project
  • Puto Amo - Lightweight window manager
  • PAUS - Perl AUtomation System - A Perl home automation system.
  • Pauker - Flashcard program
  • Patolli - An ancient Aztec/Mayan Game written in C using the SDL library.
  • Patchwork - Utility for rapid patch development and submission - Part of the GNU Project
  • Patchutils - Tools for manipulating patch files
  • Patch - Applies a patch to a file - Part of the GNU Project
  • passwd_exp - Checks password/account expiration status
  • Pasmal - TCP/IP packet authentication system
  • Pasdoc - Documentation generator for pascal source code
  • parted - Manipulates disk partitions - Part of the GNU Project
  • parlement - Software providing direct democracy on the Internet.
  • Paranormal - An extremely customizable visualization plugin for XMMS.
  • Parano - A GNOME frontend for creating, editing, and checking MD5 and SFV files.
  • Papyrus - XML-based reporting langauge for PostgreSQL and MySQL
  • Papercut NNTP server - Multi-threaded NNTP server
  • Paperclips - Webserver and dynamic content container - Part of the GNU Project
  • Pantry - Is a command line nutrient analysis.
  • pantomime - Objective-C classes that model a mail system
  • Panorama - Framework for 3D graphics production - Part of the GNU Project
  • Pang Zero - A fast-paced balloon-popping game.
  • Pango - Internationalization project
  • Pancho - Makes configuration changes through SNMP and TFTP
  • Pan - Threaded newsreader for GNOME
  • pam_pwcheck - PAM module for password strength checking
  • pam_chroot - Lets a user be chrooted in auth, account, or session
  • Paludis - A package management library and client that works with Gentoo style ebuilds.
  • pAgenda - Cross-platform calendar/schedule.
  • Pagecast - Submits lists of URLs to search engines
  • Perl Audio Converter - A tool for converting multiple audio types from one format to another.
  • paco - Source code package manager
  • Packet2sql - Converts files with ipchains packet logs to SQL inserts
  • p3scan - Fully transparent proxy server for POP3 clients
  • p3pmail - Removes dangerous HTML tags from email
  • p2c - Translates Pascal programs into C
  • p0f2 - Passive OS fingerprinting utility
  • p0f - A passive OS fingerprinting tool.
  • p - A bunch of particles interact with each other according to simple rules. And complex behaviour emerges.
  • oyepa - A "working" tagging file system.
  • oxine - A purely OSD-based xine frontend.
  • Owl - Forth-like computer language based on characters
  • Overflow - Development environment for scientific research
  • overdose - Overdose is a Yahoo! Chat client written in C and using the curses interface library.
  • outl - Advanced search and replace program
  • Otto2 - Interface to a database of CDs
  • otto - A Web-based jukebox.
  • otl - A flexible, customizable text processor for generating markup from simple text
  • Otak - Provides command line interface for programs without one
  • Ostiary - Executes secure remote scripts
  • osip - Library supporting the Session Initiation Protocol - Part of the GNU Project
  • OpenSceneGraph Editor - A tool for building complex scenes based on individual models.
  • Oroborus Theme Changer - Changes the theme in an Oroborus window
  • Oroborus Window Manager - Small window manager
  • orgadoc - Helps organize documentation - Part of the GNU Project
  • orca - Screen reader for Gnome
  • OrangeHRM - Is a comprehensive Human Resource Management (HRM) System.
  • Optik - Command-line parsing library for Python
  • Optcomplete - Provides programmable shell completion for the 'optparse' module
  • QuteCom - SIP Software
  • OpenVRML - VRML/X3D browser and runtime library
  • OpenVAS - OpenVAS (previously GNessUs) is a GPL fork of the Nessus security scanner
  • OpenTranscribe - Software to aid musicians in transcribing music.
  • Open Tax Solver - Tax preparation software for use in the US, Canada, and UK.
  • opensched - Project scheduling application
  • OpenRatings - A PHP-based engine for rating professors and classes.
  • openPlaG - Is a function graph plotter for websites in PHP
  • Open Optimus Keyboard for GNU/Linux - A driver for Art Lebedev oled keyboards.
  • OpenOffice - Complete office suite
  • OpenOBEX - Is a implementation of the Object Exchange (OBEX) protocol.
  • Open Movie Editor - An easy to use non-linear video editor.
  • Openmailadmin - A new approach to administration of IMAP mail servers.
  • OpenGrade - Software to keep track of school grades.
  • OpenFOAM - Computational Fluid Dynamics (CFD) toolbox
  • OpenEMR - A medical practice management and health record (EMR) system.
  • OpenEdit - Free Software content management for designers
  • OpenDBX - OpenDBX database abstraction layer and C library
  • Open Cubic Player - A music player for modules, MIDI, CD, MP3, and SID files.
  • Openbox - Window manager based on simplicity and flexibility
  • OpenBookings.org - Program to manage shared resources
  • Openbios - Project to develop a free IEEE 1275-1994 compliant firmware
  • OpenBerg Reader - An open-standards-based eBook reader.
  • OpenACS - Advanced Web toolkit
  • Open Site Builder Tools - automates web site development: site pages assembler, merges content pages into a predefined template and produces target site by only replacing changed documents.
  • Open WebMail - Webmail system based on Neomail
  • OpenMAD - Nuclear war simulator
  • OpenCL - Library of cryptographic algorithms
  • OpenCOBOL - A COBOL compiler.
  • Opag - Generates code that parses command line options
  • op - Lets users run root command without root access
  • OOo Label Templates 1.0 - Free blank label templates for Openoffice.org Office Suite
  • Onyx - Programming language similar to PostScript and Forth
  • OnSight - Turn-based multiplayer game
  • Online Grades - Online Grades is free software allows schools post grade information online using exports from several popular gradebook programs.
  • online-bookmarks - Stores bookmarks, favorites, and links on the Web
  • OneStroke - A freehand gesture based character input system.
  • OmniORB - CORBA orb
  • omniEvents - Lets CORBA applications communicate through asynchronous broadcast channels
  • OmegaT - OmegaT is a free multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
  • Oleo - Lightweight spreadsheet program - Part of the GNU Project
  • Orbit-Hopper - A game where you must jump over gaps and use various floor types to succeed.
  • OGMRip - An application and libraries for encoding DVDs into DivX/OGM files.
  • Ogle - DVD player
  • Ogg Vorbis - Free audio format
  • oftpd - Highly secure anonymous FTP server
  • offmirror - Offline mirroring tool
  • OfflineIMAP - A tool to bi-directionally synchronize IMAP/Maildir email boxes.
  • Mouth Online Encoding - A Web application frontend to collections of FLAC files.
  • odt2txt - A simple (and stupid) converter from OpenDocument Text to plain text.
  • octopus - Electronic structure based on time-dependent density functional theory
  • octod - A network controlled download manager.
  • Octave - High-level language for numerical computations - Part of the GNU Project
  • Octans - Scientic package of programs for localization, averaging and analysis of structural models in three-dimensional maps
  • ocre - Optical character recognition (OCR) system
  • Ocrad - OCR program based on feature extraction - Part of the GNU Project
  • ochiba - A cross between photo album software and image board software
  • obby - Library for synced document buffers
  • NyFolder - NyFolder is a Different Kind of P2P.
  • nxtvepg - Decoder and browser for Nextview
  • Nvu - A complete Web Authoring System.
  • nvi - Implementation of the ex/vi text editor
  • Nuxeo CPS - Collaborative portal and content management server
  • nuu - A GUI RPM package manager based on Yum.
  • Nut - Diet and nutrient database
  • NURBSS++ - Hides the basic mathematics of NURBS
  • NumEdit - A very powerful and simple to use hexadecimal / binary / octal / decimal editor.
  • Numdiff - Numdiff compares putatively similar files line by line and field by field, ignoring small numeric differences or/and different numeric formats.
  • number - Prints the English name of a number
  • Nucleus CMS - Nucleus is a cms for managing one or more weblogs, with multiple authors. Extend it with one of the +100 plugins available, and turn it into your own customized web publisging system.
  • ntop - Network traffic usage monitor
  • nss-mdns - A GNU Libc NSS module that provides mDNS host name resolution.
  • NSound - C++ API for audio synthesis.
  • NSBD - Automated software distribution system
  • Notespam - Filter-style spam-marking script
  • NoteCase - NoteCase is a hierarchical text notes organizer (aka. outliner).
  • noSQL - Relational database management system for UNIX
  • Normalize - Adjusts the volume of WAV files to a standard level
  • Nonsense - Random text generator
  • Nomarch - Extracts files from the old .arc archive format
  • NOLA - A PHP-based business accounting and inventory application.
  • noiseclock - Summarizes the amount of time needed to play a sound file
  • Nogger - Ogg vorbis player
  • Noflushd - Monitors disk activity
  • Noffle - Offline news server
  • Noexec - Prevents a process from exec'ing another process
  • Nodplot - Visualizes structured 3D meshes
  • Node runner - Connects network nodes in a certain order
  • noattach - Checks filenames against a given pattern file
  • nntp2rss - Lets users access newsgroups using an RSS reader
  • nnewz - An NNTP client written in C# (Mono).
  • nms - Sends email through a Web interface
  • nmh - Mail client
  • nmaplr - Prints out a report of nmap logs in an XML format
  • nmap - Network scanner
  • Nixstaller - A utility to easily create user friendly installers on UNIX like systems.
  • nixMake - Makefile autogenerator
  • nio - Framework for developing ip stack software
  • Ninpaths - Paths Survey reporting program
  • Nikwi - A platform/arcade game where you play the role of a young boy that has to collect all the candies in each of the 30 included levels.
  • Nightfall - Simulate eclipsing binary stars
  • Nice - Object-oriented language with advanced features
  • nhc98 - nhc98 is a compiler for the complete Haskell'98 language.
  • ngrep - Applies 'grep' functionality to the network layer
  • ngIRCd - ngIRCd IRC daemon
  • ngetdaemon - Lets users read and download from Usenet quickly and efficiently
  • Nget - Command line NNTP file grabber
  • nfswatch - Montiors and displays a record of network traffic
  • Nflash - Posts news to a Web site
  • Nexuiz - Nexuiz is a 3d deathmatch game project, created online by a team of developers called Alientrap.
  • newts - News-like program designed for use as a message board
  • Newsstar - Downloads and posts news
  • Newsq - Helps to efficiently process messages in an outgoing mail queue
  • Newspost - Newsgroup posting tool
  • Newspipe - RSS/Atom aggregator using email
  • NewsCloud Media Platform - A media platform for citizen journalism and the social news
  • newrpms - Checks for newer versions than those currently installed
  • newmail - Biff like tool for the terminal
  • Newfile - Creates starter files
  • netwox - Network testing toolbox
  • NetworkManager - Program to provide a persistent network connection
  • netwib - Network library
  • netwag - Graphical network testing toolbox
  • Nettle - Cryptographic library - Part of the GNU Project
  • Netsukuku - A P2P network system
  • Netstat-nat - Displays NAT connections
  • netrw - Transports data over the Internet
  • netrik - Text mode browser
  • netprofiler - Writes network settings into config files
  • NetPBM - Converts graphics formats
  • Nethack - Adventure game
  • netenv - Simplifies the localisation of laptops
  • netdude - Inspects and manipulates tcpdump tracefiles
  • netcat6 - Reads/writes data across network connections, with IPv6 support
  • Netcat - Reads/writes data across network connections
  • netboot - Boots an operating system through a network interface on a x86 system
  • netalert - Simple network service avaibility monitor
  • net6 - Library for developing network-based applications
  • net2ftp - Web-based FTP client
  • Net-snmp - Tools and libraries for the Simple Network Management Protocol
  • net-check - Monitors Internet connectivity
  • nepim - Measures available bandwidth between hosts
  • Neon - HTTP and WebDAV client library
  • neo_my2pg - Python script for migration from mysql to postgresql.
  • nefu - Monitors services over the network
  • Ne - Small, fast text editor
  • ndir - Display the contents of directories
  • Ncurses - Displays and updates text on text-only terminals - Part of the GNU Project
  • c-nocem - Applies NoCeM actions on the local news spool
  • ncc - C source code analyzer
  • nbtstat.pl - Free implementation of the 'nbtstat' utility
  • nb++ - C++ toolkit
  • Nautilus - File manager and graphical shell - Part of the GNU Project
  • Narim - File-name encoding converter
  • Nanoblogger - Simple blogger
  • Nano - Pico clone for *NIX - Part of the GNU Project
  • Nana - Library for assertion checking and logging in GNU C/C++ - Part of the GNU Project
  • nameko - Simple Web mail script
  • namefix.pl - Simplifies formatting the file names of media files
  • namazu - A full-text retrieval search system
  • Naim - Ncurses based AIM client
  • Nail - MIME-capable mail user agent for *nix systems
  • Nagios - A powerful network and system monitor.
  • nabou - Monitors file changes using MD5 checksums
  • nTodo - Small daily task and to do list application
  • nMod nBody Modelling Toolkit - Particle-particle nbody model
  • mywebcreator - A free publishing platform to create online diaries.
  • MythTV - A multi-function PVR
  • mysql_client - MySQL client interface that supports multiple operating systems and languages
  • mysqlBIND - Manages multiple DNS/BIND name servers
  • MySQL - Relational database management system
  • MySIPSwitch - The SIP Switch is an experimental stateful SIP Proxy server to allow the use of multiple supplier SIP accounts from a single SIP login.
  • MySAR - A dynamic web-based squid log analysis system
  • myrss - An RSS feed gatherer and item printer.
  • MyRPM - A script to create an RPM package from a list of files.
  • myrescue - Rescues still-readable data from a damaged hard-disk
  • MyPos - A simple Web-based administration tool for postfix.
  • myphp - Web based Personal Information Manager (PIM)
  • MyPaint - A quick and easy paint program like the GIMP
  • mynews-www - MyNews web interface
  • mynetmonitor - Mynetmonitor is a gtk2 net monitor with system
  • Myleague - Maintains soccer league data
  • mygosuMenu - Set of DHTML menus
  • myfw - Tool to help build an iptables-based firewall
  • mycasts - A script to keep up to date with Podcasts.
  • My Blog - A blog that aims to be simple to use, with many advanced and unique features.
  • mybashburn - it can burn data cds/dvds and create mp3/ogg/flac
  • mySiteMaker - CGI tools for creating Web interfaces to database tables
  • myGifts - Wish list and gift registry management software
  • myDVDs - Graphical DVD inventory database
  • My2pg - Converts MySQL dumps into Postgres dumps
  • mxterm - Motif version of xterm
  • mwcollect - Collects worm-like malware in a non-native environment
  • mwForum - Web based discussion forum system
  • mw-template - Ruby part of a template library
  • mvc - Video capture program
  • Muxi - A TV application for DVB.
  • mutt - Text based mail reader
  • MUltihost SSH Wrapper - Broadcasts commands over SSH to multiple hosts.
  • Music Manager - A Konqueror plugin for management of audio files (MP3, Ogg, etc.).
  • music_command - A tool that changes tracks or toggles the playing state in your media player.
  • muse - Emacs mode for publishing in various modes - Part of the GNU Project
  • Mumbles - Is a Dbus based notification system
  • Multitalk - An interactive presentation program.
  • Multitail - Tail on multiple windows with a ncurses interface
  • Multiscan - Console portscanner
  • Multi Gnome Terminal - Enhanced version of gnome terminal
  • MultiGet - Graphical download manager
  • Multi-Cursor Window Manager - A window manager which lets people interact simultaneously on a shared desktop.
  • MultiCD - Backs up a large number of files to multiple CDs
  • Mule - Multilingual text editor for Emacs - Part of the GNU Project
  • Muine - Music player with some new UI ideas
  • MudMagic - MUD client written in GTK
  • muddleftpd - FTP server
  • MuCMS - A small, platform independed content management system, that does not use a relational database.
  • Maxemum TV-Guide - A TV guide for KDE.
  • Mtr - Network diagnostic tool
  • Mtools - Lets Unix systems work with DOS files - Part of the GNU Project
  • Maketool - GTK frontend for GNU make
  • mtink - Status monitor for EPSON printers
  • Métamorphose FnFR - Is a mass renaming program combining great flexability with an intuitive interface.
  • mtPaint - Simple paint program for creating icons and pixel-based art
  • Multi-Threaded DAAP Daemon - An iTunes DAAP server.
  • mss - Wrapper for Mozilla
  • msredird - Serial port redirector
  • msort - Sophisticated and flexible sort program
  • Msmtp - SMTP client that can be used as a plugin for MUAs
  • Multi Stream Editor - Is a stream editor for texts and binary data
  • Mr. Voice - A Perl/Tk front-end for an MP3 database.
  • MRTG - Monitors traffic load on network links
  • mrtg-rrd - Displays MRTG graphs from RRDtool data
  • mptris - Tic-tac-toe game
  • mpop - A POP3 client
  • Minimum Profit - A programmer's text editor.
  • Mplib - Library for ID3 tags
  • mpd - Remote server for playing music and accessing playlists
  • mpc - Command line interface for mpd
  • mpatrol - Diagnoses run-time errors
  • mp3wrap - Wraps two or more mp3 files into one large playable mp3
  • MP3val - A tool for validating and fixing MPEG audio files.
  • mp3tools - Tools to manage a collection of MPEG audio files
  • mp3togo - An MP3 player loader.
  • MP3tm - Helps you to tag all your MP3s and set unique names.
  • mp3station - Plain-text tool for managing MP3 playback
  • mp3stat - Compiles information about your mp3 usage
  • mp3splt - Splits MP3 and Ogg files without decoding and re-encoding
  • MP3 Splitter - A tool to split MP3s into manageable sizes.
  • mp3riot - Directory search utility
  • mp3mover.pl - Renames audio files so they conform to a set scheme
  • mp3fs transcoding FUSE filesystem - A FLAC to MP3 transcoding FUSE filesystem.
  • mp3check - Checks MP3s to make they they are OK for burning
  • mp3cddb - MP3 renaming program
  • mp3cd - Burns MP3, OGG, and WAV files to audio CD
  • mp3act - A Web-based MP3 streaming jukebox.
  • Mp3Kult - KDE 2 app that organizes an mp3 collection
  • Mp32ogg - Converts MP3 files to Ogg Vorbis format
  • Mozilla - Internet browser for the free software community
  • mozilla-bonobo - A browser plugin that uses bonobo controls to display content.
  • Mozart - Framework for compiler development
  • Mozart/Oz - The Mozart Programming System
  • move - Moves unwanted file(s) to trash.
  • Motti - Multiplayer, networked strategy game - Part of the GNU Project
  • Motor - Text mode IDE
  • Motion - Motion detecting device
  • MoSSHe - A lightweight, secure server monitoring system.
  • Morsetrainer - Program for learning Morse code
  • morla - An editor of RDF documents.
  • Moregroupware - Groupware package that includes most standard modules
  • Moosic - Playlist manager
  • Moodss - Modular System Monitoring Software
  • Moodle - System for producing educational course Web sites
  • Mony - ICMP monitoring tool
  • Monster Masher - Action game for Gnome
  • Monolith - Framework for writing CGI applications
  • Monkey HHTP Daemon - Small and fast Web server
  • Monit - Utility that monitors daemons or similar programs
  • Monfarm - Monitoring system for server farms
  • mon - Scheduler and alert management tool
  • My cOLLection manager - A text-based, easy to use database frontend for gdbm or Berkeley DB.
  • Moleskine - Source code editor for the GNOME desktop
  • molasses - Sticky notes app
  • moftpd - FTP server
  • moe - A powerful and user-friendly text editor - Part of the GNU Project
  • Modutils - Kernel utilities
  • modula-2 - Compiler for modula-2
  • mod_xslt - Converts XML files to HTML files on the fly
  • mod_tidy - mod_tidy is a TidyLib based DSO module for the Apache HTTP Server Version 2 to parse, clean-up and pretty-print the webservers' (X)HTML output.
  • mod_spin - Apache module that provides a simple template language
  • mod_security - Intrusion detection and prevention module for Apache
  • mod_ruby - Embeds the Ruby interpreter into Apache
  • Mod_python - Embeds Python within an Apache server
  • mod_musicindex - C implementation of the Apache::MP3 module
  • mod_cplusplus - Implements object oriented apache-2.0 handlers with C++
  • moap - Is a swiss army knife for project maintainers and developers.
  • mnoGoSearch - Search engine
  • MPEG Menu System Version2 - A menu system.
  • MLton - Compiler for the Standard ML programming language
  • mlmmj - Server-independent implementation of 'ezmlm'
  • Mll2html - Converts a mailing lists file to an HTML file - Part of the GNU Project
  • MLKit - Compiler for the Standard ML programming language
  • MLdonkey - Multi-network file sharing client
  • mkvtoolnix - Create and work with Matroska media files.
  • mksh - MirBSD enhanced version of the Korn Shell
  • Mkrdns - Automates changes to DNS zone files
  • Mkcgi - Helps generate form processing CGI scripts
  • Mkautosmb - Makes the local SMB network browsable
  • mkDoxy - Makes Doxygen-like web page documentation from makefiles
  • mjpeg - Tools for video recording, playback, simple editing and MPEG compression
  • Microscopic Window Manager - Minimalist window manager
  • mit-scheme - MIT/GNU Scheme programming language - Part of the GNU Project
  • MisterHouse - Home automation with Perl.
  • Misctools - Collection of utilities for 'ping'
  • miscfiles - Collection of various files - Part of the GNU Project
  • MirrorMed - EHR and Practice Management System software
  • Mirror - Turns your entire display black
  • MIRO DC +1 - Driver for the MIRO VIDEO DC1 (plus) mjpeg grabber/display ISA card
  • Mirmon - Monitors mirrors
  • mirmake - Portable version of MirBSD /usr/bin/make and associated tools
  • Mioga - Intranet groupware application
  • minpair - Generates a list of minimal pairs
  • Minorfish - Simple list manager
  • Minnow - A Web-based PDF discussion engine.
  • minit - A smaller version of 'init'
  • minised - fast, small implementation of 'sed'
  • Minimalist - Small, simple mailing list manager
  • miniBB - Minimalistic bulletin board
  • Mimetic - MIME library written in C++
  • Mimerdesk - Web-based groupware environment
  • migrationtool - Lets you migrate your email from one IMAP server to another
  • MighTyD - MighTyD is a prototype for demo puposes & the first implementation of the temporal database model devised by Nikos Lorentzos, Hugh Darwen & CJ Date. It uses Tutorial D as its language & PostgreSQL for storage & is compliant with the The Third Manifesto.
  • Mig - Interface generator for the Hurd
  • Mifluz - Full text inverted index query library - Part of the GNU Project
  • midget - A small SMB-share based backup script for environments without administrators.
  • Midgard - Framework for information management systems
  • Microbrew Microsieve - Spam filter for USENET
  • Microblogger - Simple Web log
  • Mice - Server designed for use with a home network
  • Miau - IRC bouncer
  • mharc - Scripts for generating and managing Web-based mail archives
  • mhWaveEdit - Plays, edits, and records sound files
  • Mfinance - Scripts for personal finance management
  • mfg - Makefile generator
  • metromap - A simple program for finding paths in metro (subway) maps.
  • METRo - Model of the Environment and Temperature of Roads
  • metisse - An experimental 3D X desktop
  • Metamorphose File -n- Folder Renamer - A mass file renaming program.
  • Metahtml - Programming language for the Web
  • Metadot Portal Server - Web site building software
  • Metacity - Window manager
  • Mesk - A GUI music player application.
  • MeshLab - Is a portable and extendible system for the processing and editing of unstructured 3D triangular meshes.
  • Mergelog - Merges and sorts HTTP log files
  • Mercury - Logic/functional programming language
  • Mercurial - A fast distributed SCM.
  • menushki - Console menu converter and editor
  • Menstruation Calendar - Tracks menstrual cycles
  • Menc - A GUI to encode with MEncoder and transcode.
  • Memwatch - Memory leak and corruption detection tool
  • memtester - Tests a computer's memory subsystem
  • Memtest86 - Memory test for x86 computers
  • Memo - Reminder application
  • memcheck - Memory debugging tool
  • member_man - An online organization member management system.
  • Melting - Nearest-neighbor compilation of nucleic acid hybridation - Part of the GNU Project
  • Meld - GNOME 2 diff and merge tool
  • Megami - Blackjack game
  • Meeting Room Booking System - Multiple site meeting room bookings.
  • Meep - finite-difference time-domain (FDTD) electromagnetic simulations
  • Mednafen - A multi-game-system emulator that uses OpenGL.
  • Medit - Is a multiplatform GTK text editor.
  • mediastreamer - A media streaming toolkit for VoIP applications.
  • MediaSort - A tool for indexing, sorting, and renaming files with metadata attributes.
  • MediArchiver - A Web-based media archiver.
  • MDR - Multifactor Dimensionality Reduction
  • mdk - Emulator and development environment for Knuth's MIX computer - Part of the GNU Project
  • Mdadm - Tool for creating, maintaining, and monitoring "md" device arrays
  • mcsim - Simulation software for designing, analyzing and calibrating mathematical models - Part of the GNU Project
  • mcrypt - Encrypts files or streams
  • mcron - Vixie cron replacement - Part of the GNU Project
  • mcl - MUD client for *nix
  • mcl-algorithm - Cluster algorithm for graphs
  • Midnight Commander - Unix file manager - Part of the GNU Project
  • Mbuni - Multimedia Messaging Server (MMSC) - Mbuni functions as a Multimedia Messaging Service Centre (MMSC)
  • Mbuffer - Enhanced version of buffer
  • mboxstats - Creates top 10 lists of your email
  • mboxgrep - Small mailbox searching utility
  • mbox.sh - Extracts MIME email headers and bodies into a directory tree
  • mbot - IRC bot that can run multiple bots simultaneously in the same process
  • MayaChemTools - MayaChemTools is a growing collection of Perl scripts to support day-to-day computational discovery needs.
  • Maxima - Computer algebra system
  • maverik - Virtual reality micro kernel - Part of the GNU Project
  • maude - High-performance multiparadigm language based on rewriting logic.
  • MatrixSSL - Is an embedded SSL implementation.
  • MathGL - Library for making various scientifc graphics in platform independent way. It may use OpenGL or directly write to vector PostScript or bitmap files.
  • marst - Algol to C translator - Part of the GNU Project
  • Mars - Network status monitor
  • Markdown - Text-to-HTML conversion tool
  • mariabasic - this is a simplified basic syntax interpreter aimed for pdas
  • Margana - Anagrammer
  • mar7 - mar7 is losless compression routine
  • mar - Stores meta and user data in a single file
  • Mapuche - MApuche, The Chilean PHP CMS.
  • MapServer - Web-enabled mapping application development tool
  • MaPiVi - A cross-platform picture manager/organizer.
  • Manyapad - Text editor
  • Mantra - A centralized, Web-based newsreader.
  • Mantis - A PHP-based bug tracking package.
  • Manslide - A tool for generating slideshow.
  • Mangle - Removes formatting and/or comments from source code
  • Man-db - Reference manual page database and browser
  • Man2web - Converts man pages to HTML
  • Man - Man page suite used to read GNU/Linux documentation
  • MAM/VRS - 3D visualization and graphics library
  • Mambo - Content management tool
  • MaklerPlus - A Web-based application for real estate business.
  • Makepp - Reimplementation of 'make'
  • makefaq - Automatically creates a FAQ
  • Makecheque - Print bank cheques, possibly adding MICR codes.
  • Make_uninstall - Monitors and records installations
  • make - Generates executables and other non-source programs - Part of the GNU Project
  • mairix - Indexes and searches messages in Maildir, MH, or mbox folders
  • maintain - Manages host information for DNS, DHCP, VMPS, and radius configurations
  • Mailutils - A set of libraries and programs for handling e-mail messages - Part of the GNU Project
  • Mailsync - Synchronizes a collection of mailboxes
  • Mailman - Manages discussion lists - Part of the GNU Project
  • Mailgraph - Mail statistics RRDtool frontend
  • Mailfront - Customizeable frontends for mail servers
  • Mailfromd - A general-purpose mail filtering daemon for Sendmail and Postfix.
  • Mailfilter - Gets rid of spam in POP mailboxes.
  • Mailer - Processes HTML form submissions
  • Maildrop - Email filter and delivery agent
  • Mailcrypt - Interface to GnuPG
  • mail2thread - Finds and outputs mail threads
  • Mail2clf - Generates a CLF file from email
  • Mail2chart - Generates statistical charts from e-mail
  • Mail Notification - A status icon (aka tray icon) that informs you if you have new mail.
  • Mail-bounce - Returns customized email to the sender
  • Mahogany - GUI e-mail and news client
  • madman - A digital music manager.
  • MacSSH - MacSSH is a Macintosh Free Software Telnet Terminal emulation application with SSH2 protocol.
  • MacSlow's Cairo-Clock - An analog clock using Cairo for its rendering.
  • MaCollec Collections Manager - An AJAX-powered collections manager for your Web browser.
  • GNU MAC Changer - Is a utility to manipulate a MAC address - Part of the GNU Project
  • Macaulay 2 - Software for algebraic geometry research
  • m4 - Macro processor - Part of the GNU Project
  • mp3play - A major mode for emacs to control mpg321.
  • LZPX - LZPX is a fast and powerful file compressor.
  • Lynx - Text mode browser
  • Lx-Office - A Web-based accounting system customized for German needs.
  • lwm - Lightweight window manager
  • Lightweight C++ - Lightweight programming language similar to C++
  • Lutel Firewall - Firewall and NAT/masquerade router for home networks or multiple subnet applications
  • Lustre - Storage and filesystem architecture for very large clusters
  • Lush - Object-oriented Lisp interpreter and compiler
  • Lurker - Mailing list archiver
  • luola - 2D arcade game
  • lufs - Userspace filesystem framework
  • LUCAS - LDAP monitoring framework
  • Lua - Embeddable programming language
  • Lua-gnome - Wrappers for the Lua programming language
  • lsh - Free implementation of the SSH protocol - Part of the GNU Project
  • lpr-bash - Replacement for the "lpr" command
  • lpe - Small programminng editor
  • LOVD - LOVD stands for Leiden Open (source) Variation Database.
  • Lout - Document formatting system
  • Loukotka - A tool for making online slide shows.
  • Loudmouth - Lightweight Jabber client
  • Loudhailer - A small and simple music player for the GNOME desktop.
  • Loquacity - A simplified blogging application.
  • Loopess - Loop library
  • Logwatch - Analyzes and reports on system logs
  • Logrep - Collects and presents information from logfiles
  • Logintop10 - Creates "Top 10" lists from wtmp statistics
  • logcheck - Monitors system logs and notifies user of violations
  • logalert - A log file monitor that takes actions in response to triggers.
  • log4sh - Logging framework for shell scripts
  • log4php - Php port of log4j
  • log4c++ - C++ port of log4j
  • Log4c - Library for flexible logging
  • Lodju - Lodju creates indexes of digital images
  • lndir - Creates a shadow directory of symbolic links to another directory tree
  • ln_local - Managing the installation of software packages
  • Lmule - A GNU/Linux port of the eMule file sharing client.
  • Lm_sensors - Utilities to monitor temperatures, voltages, and fans
  • LivingInternet Web Site Template - Source and user manual providing a simple, automated structure for provision of standard navigation functionality for web sites with multiple chapters and subsections.
  • Little Wizard - A development environment for children.
  • littleutils - A collection of small but useful programs.
  • litetrash - Light-weight, portable trash can
  • LiteMan - A graphical manager for SQLite files.
  • listener - Detects and records sound
  • lisp-cgi-utils - Common Lisp CGI scripting utilities
  • LISA - Platform for developing Lisp-based Intelligent Software Agents
  • Lire - Log analyzer
  • liquidwar6 - Liquid War 6 is a unique multiplayer wargame. - Part of the GNU Project
  • liquidwar - Liquid War 5 is a unique multiplayer wargame.
  • Linux Vacation - Automatic mail-answering program
  • Linux (BLOB free version) - UNIX kernel often used with the GNU system
  • Lintouch - An HMI (Human Machine Interface) system.
  • linSmith - An educational Smith charting utility.
  • Linphone - Web phone package
  • Links - Web browser
  • LinkGrammar-WN - A lexicon expansion for the Link Grammar Parser.
  • linice - Source-level kernel debugger
  • LinHerp - A herpetology records database.
  • Lingerd - Accelerator daemon for apache
  • LimeSurvey - Is a Online Survey Tool, which was known until May 2007 as PHPSurveyor.
  • LIMBAS - Is a web application based on tables, forms and reports with many other built-in features like a filemanager, workflow engine and user management
  • Lilypond - Music typesetter - Part of the GNU Project
  • LiliBoggie - A Boggle-like words game.
  • lighttpd - Web server optimized for high-performance environments
  • Light Speed! - Simulates a geometric lattice
  • GNU lightning - Generates assembly language code at run-time - Part of the GNU Project
  • Lightfeather - A 3D engine
  • LifeLines - Console GEDCOM-based genealogy program
  • Licq - ICQ Clone
  • licq-osd - Displays new ICQ messages onscreen
  • libzip - Library for manipulating zip archives
  • libxml++ - C++ wrapper for the libxml XML parser library
  • Libxml2 - XML C library for the Gnome project
  • libxmi - Library for rasterizing 2-D vector graphics - Part of the GNU Project
  • libxklavier - XKB foundation library
  • LibXDiff - Text and binary file differential/patch library
  • libxcpc - Exception and resource handling in C
  • libvisca - This library provides an API for controlling cameras that comply with Sony's VISCA protocol.
  • libuninum - Convert between integers and numeric strings in various number systems
  • libungif - Operates on GIF files using uncompressed GIFs
  • libundo - Manages undo/redo information
  • Libtrash - Implements a "trash can" under GNU/Linux
  • libtranslate - Translates between natural languages
  • Libtour - Generic tournament processing library
  • libtool - Generic library support script - Part of the GNU Project
  • LibTomCrypt - Cryptographic toolkit
  • LibTMCG - LibTMCG is a C++ library for creating secure electronic card games.
  • libtiff - Library for reading and writing TIFF files
  • libtheora - Free video compression library
  • libtecla - Interactive command line editing faciltiies
  • LibStroke - Stroke translation library
  • Libstrfunc - Text processing system
  • libsrs2 - Library for email envelope send address rewriting
  • libspopc - POP3 client library
  • libspf2 - Verifies that a sender's address matches the address that submitted it
  • Libsocketcpp - C++ class to implement UDP and TCP
  • Libsndfile - Library for reading and writing sound files
  • libsmtp - Lets developers add SMTP sending capabilities to their programs
  • libslack - Library of Unix/C programming utilities
  • libsigsegv - Library for handling page faults - Part of the GNU Project
  • libsigcpp - C++ callback library
  • libshout - MP3/Ogg Vorbis broadcast streaming library
  • libsafe - Detects and handles buffer overflow attacks
  • Librsync - Provides checksum-based differencing
  • Librep - A shared library Lisp dialect interpreter
  • libral - An addressbook engine.
  • libquantum - Simulation of a quantum computer
  • libptytty - A library for OS-independent pseudo-TTY management.
  • libptp - Picture Transfer Protocol (PTP) support library
  • libpropc++ - Library for properties in C++
  • Libpng - Reference library for the PNG graphics format
  • Libping - Makes ICMP_ECHO requests from a script or program
  • libpcl - Portable coroutine library
  • libpcap - Library that provides a packet filtering mechanism
  • libopts - AutoOpts option parser library that supports stand alone config files - Part of the GNU Project
  • libopennet - provides the function open_net() whose pathname argument can be an FTP or HTTP URL
  • liboop - Low-level event loop dispatcher
  • The GNU Objective C Class Library - The GNU Objective C Class Library (libobjects) is a library of general-purpose, non-graphical Objective C objects - Part of the GNU Project
  • libnova - Celestial mechanics and astronomical calculation library
  • libnetdude - Packet manipulation backend of 'netdude'
  • libmodplug - Plays module files (.mod, .s3m, .it, .xm, and more).
  • Libmng - Animation reference library
  • libmemcache - C API for 'memcached'
  • GNU libmatheval - Library for evaluating mathematical expressions - Part of the GNU Project
  • liblo - Lightweight implementation of the OSC protocol
  • libintl-perl - Library for message translation for Perl
  • GNU Libidn - Internationalized string preparation library - Part of the GNU Project
  • Libiconv - Converts between character encodings - Part of the GNU Project
  • libhtmlTemplate - Library for developing CGI applications
  • libhdate - Library for obtaining Hebrew dates and holy days
  • libgtop - Retrives various information about usage of system resources, processes, etc.
  • Libgtkol - Is a GTK C++ Object Layer
  • libgsf - GNOME structured file library
  • libgpiv - Library for Particle Image Velocimetry (PIV)
  • libgphoto - Library that provides applications access to digital cameras
  • libgnomecanvas - Canvas widget for Gnome2
  • Libglade - Lets users load GLADE interfaces at runtime
  • libgeotiff - Library for reading and writing coordinate system information from/to GeoTIFF files
  • Libgenrics - Is a library to provide object services
  • Libgcrypt - Cryptographic library - Part of the GNU Project
  • Libgaudio - C/C++ library to incorporate sound and sound effects into games
  • Libferris - Virtual filesystem
  • libextractor - Extracts metadata information from files - Part of the GNU Project
  • libexif - EXIF tag parsing library
  • libevent - Event notification library
  • liberror - Message printing library
  • libelf - ELF object file access library
  • libecc - C++ elliptic curve cryptography library
  • Libdvdcss - Library for transparent DVD device access with CSS on-the-fly decryption
  • libds - Library that supports simple networking, threads, and data structures
  • libdodo - cgi c++ library
  • libdaemon - Facilitates the writing of daemons
  • Libcwd - Library for C++ debugging
  • LibCVS - Provides CVS functionality in library form - Part of the GNU Project
  • Libcurl - Multiprotocol file transfer library
  • libcroco - Cascading Style Sheet (CSS) parsing and manipulation toolkit
  • Libcisco - Automates configuration management for Cisco network equipment
  • libcfg+ - Command line and configuration file parsing library
  • libcdio - Encapsulates CD-ROM reading and control - Part of the GNU Project
  • libcddb - Implements various protocols to access data on a CDDB server
  • libcdaudio - Portable library for accessing audio CD drives
  • libc - Library for use with GNU/Hurd and GNU/Linux - Part of the GNU Project
  • libbraille - Lets users access Braille displays and terminals
  • libbnr - Implementation of the Bayesian Noise Reduction (BNR) algorithm
  • Binary I/O library - Portably stores and retrives binary data
  • libbatch - Implements typical batch process functions
  • libbash - A tool that enables bash dynamic-like shared libraries.
  • libASSA - A C++ OO network communication library.
  • libao - Cross-platform audio library
  • LibTPT - Template scripting language
  • libTAP - Prototyping system for virtual/augmented reality applications
  • LibRadtran - Calculates solar and thermal radiation
  • libSVRG - SVG rendering engine
  • libQGLViewer - Library for development of 3D applications
  • libmpeg2 - Library for decoding mpeg-2 and mpeg-1 video streams
  • libID3 - Library for parsing ID3 tags
  • libGringotts - Thread-safe library that encapsulates data in an encrypted file
  • libGlass - Distributed computing library
  • libDSP - Library of digital signal processing functions
  • libConfuse - Configuration file parsing library
  • libConfigpp - C++ library for reading configuration files written in C-style syntax
  • LibCGI - Library for writing CGI applications
  • Lib3ds - Library to help create of 3DS import and export filters
  • lfwmail - Lightweight Webmail program
  • Lftp - FTP client
  • lfm - Last File Manager - Curses-based file manager
  • Lesstif - Free implementation of OSF/Motif
  • Lesspipe.sh - Input filter for 'less'
  • Less - Display paginator - Part of the GNU Project
  • Lengualibre - Unfinished free Spanish language dictionary
  • Legal Case Management System - A legal case management system for not-for-profit legal advice centers.
  • Legal Case Management - System to organise follow-ups of legal cases or consultation, including client consultations, court events and reporting.
  • Leet-Generator - Is a program to convert plaintext to leettext.
  • Led - Programmer's editor
  • led.pl - General purpose LDAP editor
  • Leafnode - Offline news server
  • Le Petit Poucet - Le Petit Poucet aims at being an application to display and edit GPS tracks within a 3D scene.
  • Le editor - Terminal text editor
  • LDView - A 3D Lego viewer.
  • ldns - Library that simplifies DNS programming in C
  • Ldapvi - Lets users update LDAP entries with a text editor
  • Ldapdiff - Compares and adjusts ldif files with a running LDAP server
  • ConTagged - An LDAP based address book.
  • lcvs - Adds a global log file and unique tags to cvs
  • lcdtest - A monitor test pattern utility.
  • Linux Bandwidth Arbitrator - Helps network admins control bandwidth
  • Lazyread - Combined autoscroller, pager, and e-book reader
  • Launchtool - Launches applications
  • Launch.app - Executes applications
  • Latex4jed - Enhanced LaTeX mode for the Jed editor
  • Latex2slides - Produces HTML/JPEG slides from a TeX or LaTeX source
  • LastBASH - LastBASH is a console/terminal based player for Last.fm written in Bash.
  • Larswm - Window manager
  • Larbin - Web crawler
  • Laplock - A system for locking your computer using a media card.
  • Lamprop - Calculates properties of fiber-reinforced composite laminates
  • LAMP Accounts - LAMP based day to day business management software.
  • Lahelper - GUI for LaTeX
  • Laffer - A Web-based ICQ/MSN/AOL/Yahoo/Jabber messenger.
  • Library Accounting System - A cataloging system for books, magazines, and journals.
  • K-Yamo - A CD ripper and tagger for MP3 and Ogg Vorbis files.
  • Kxparse - Lightweight XML parser
  • kX Generator - An xorg.conf file generator.
  • kwavencoder - Generates Ogg, MP3, or FLAC out of a WAV file
  • kwave - 24-bit sound editor for KDE
  • kvpnc - A KDE frontend for various VPN clients.
  • KVortaro - A tool to translate words from one language into another.
  • KDEVisualBoyAdvance - A VisualBoyAdvance front-end.
  • Kuickshow - Image viewer
  • Kuartet Desktop - A visually appealing, easy to use desktop built upon KDE.
  • KTranslator - A dictionary application for KDE.
  • KTorrent - BitTorrent client for KDE
  • Ksymoops - Kernel oops and error message decoder
  • Kstars - Desktop planetarium for KDE
  • ksociograma - Sociologic analysis for a group of students
  • KShutDown - An advanced shutdown utility for KDE.
  • KSEG - Euclidean geometry simulator
  • Krusader - KDE twin-panel file manager
  • Krecipes - A KDE recipe tool.
  • Kpoker - Video poker game
  • KPodder - A podcast program for KDE.
  • KPhotoAlbum - A tool for indexing/browsing/searching large numbers of images and/or videos.
  • kperfmeter - Performace statistics monitor for KDE
  • Kpasman - Password manager for KDE
  • Kover - CD cover printer
  • Kopete - Plug-in based instant messaging system
  • konserve - Backup application for KDE 3
  • Konqueror - Web browser
  • Konch - A versatile KDE system tray proxy for scripts.
  • Koha - Is a integrated Library System
  • Kodos - Tool for working with regular expressions
  • KnowledgeRoot - A knowledge base system.
  • knowde - Creates a hierarchical tree structure of knowledge cards
  • knoda - A database frontend for KDE.
  • Knocker - Port scanner
  • Kniffel - Converts first order predicate logic to various free graphics formats
  • KNewMail - Checks incoming mail and displays headers
  • Knetfilter - KDE frontend to iptables
  • KMyMoney - A KDE personal finance program.
  • KmusicdB - A music collection manager for KDE using PostgreSQL.
  • KMush - A KDE MU* client.
  • Kmplot - Plots mathematical functions
  • KMol - Chemical calculator for the KDE
  • KMobileTools - A KDE application to manage mobile phones.
  • KMess - An MSN Messenger-compatible chat program for KDE.
  • KMediaFactory - A template-based DVD authoring tool.
  • KMAGO - KDE-based download manager
  • KLone - Embeddable web server and SDK to write dynamic HTML pages using C/C++
  • KLogo-Turtle - The KLogo-Turtle is an interpreter of the LOGO language.
  • KLiveJournal - A KDE LiveJournal client.
  • KLinkStatus - A link validity checker.
  • Klicklack - A plugin-based dictionary application for KDE.
  • KLibido - KDE Usenet file grabber
  • Klep - A flashcard program that helps in putting information into one's short term memory.
  • Klear - A KDE-based DVB TV viewer and hard disk recorder for GNU/Linux.
  • KleanSweep - A utility for finding unneeded files.
  • Kleandisk - Removes extraneous files from your hard disk
  • Klavaro - Typing tutor program.
  • Kkeyled - Displays the LED states of the keyboard
  • kismet2html - Kismet to HTML logfile parser
  • Kisdnmonitor - KDE applet for 'isdnserver'
  • Kinkatta - AOL instant messenger for KDE
  • Kile - LaTeX source code editor
  • KildClient - A powerful MUD client with a built-in Perl interpreter.
  • Kidwai - Clinical laboratory management system
  • Kid3 - An efficient tagger for MP3, Ogg/Vorbis, and FLAC files.
  • Kickstart tools - Scripts for building your own distribution
  • Kiba-Dock - is a dock replacement
  • khtml2png - Creates PNGs of Web pages
  • KFuseIso - KDE integration for fuseiso.
  • KForge - A collaborative development environment for software or knowledge.
  • keytouch - Enable additional keys on your keyboard
  • Keychain - Key management front-end for OpenSSH's ssh-agent
  • keyFE2 - Finite element solver
  • Kexi - Kexi is an integrated visual environment for managing data competing with Microsoft Access.
  • Kexchange - A currency converter which gets the latest rates from the Internet.
  • Ketchup - A tool for updating or switching between versions of the Linux kernel source.
  • Kernin - Script for kernel install
  • Kvrd - DVR card controller
  • kdtree - A simple C library for working with KD-Trees
  • KDocker - Put any program into the notification area
  • kdissert - A mindmapping tool.
  • KDEnlive - A non-linear video editor
  • KDE Accessibility - Assistive technologies for the KDE desktop
  • kdbg - GUI for gdb
  • Kci - Simulates chemical reactions
  • kChat - Chat system with server-side moderated mode
  • kcd - Directory change utility
  • KCAPTCHA - A visual human validation tool.
  • Kbillar - Billiards game
  • Kbiff - Mail notification utility
  • kbde - Keyboard emulator
  • kbarcode - A barcode and label printing application for KDE 3.
  • kBag - Synchronizes your documents between one computer and another.
  • KBabel - Tools for working with gettext PO files
  • Kazehakase - Yet another GTK+2 based Web browser.
  • Kawa - Scheme and Emacs Lisp on a Java VM - Part of the GNU Project
  • Katoob - A light-weight, multilingual text editor.
  • KatchTV - A KDE-based Internet TV subscription/downloading/watching (podcatcher).
  • Karrigell - Web programming software
  • Karra - A Web-based digital library system.
  • Karmen - An easy-to-use window manager for X.
  • Kannel - SMS and WAP gateway
  • Kanjidrill - Helps users learn Japanese 'Kanji' characters
  • Kanatest - Kanatest is a simple hiragana and katakana drill tool.
  • Kana no quiz - A tool to memorize Japanese kana (hiragana & katakana) pronounciation.
  • kamix - Mixer for KDE and ALSA
  • KalleLoad - Is a upload system developed in PHP.
  • Kalkulon - A programmable expression calculator for programmers
  • Kalculator - Calculator for KDE
  • Kalcul - Interactive math game for ages 8-15
  • KAlarm - An alarm message, command, and email scheduler for KDE.
  • kaim - AOL-type instant messenger
  • kagora - Web forum system
  • Kaffe - Complete, PersonalJava 1.1 compliant Java environment
  • Kadet - Server
  • ka2dyn - Ka2dyn is a simple program to update dynamic DNS. It uses a dynamically loaded plugins architecture.
  • kShowmail - KDE tool for watching for email on POP3 servers
  • Karchiver - KDE utility for working with compressed files
  • k9copy - DVD9 to DVD5 copy
  • k3DSurf - Visual MathematicalMultidimensional surfaces
  • K3b - CD/DVD burning tool for KDE
  • jwsmtp - Facilitates sending email programmatically
  • jwhois - Internet whois client - Part of the GNU Project
  • jupp - jupp variant of JOE's Own Editor
  • Internet Junkbuster - Blocks unwanted banner ads and cookies
  • Jumpnbump - Cute multiplayer platform game with bunnies
  • js-xpath - JavaScript Library implementation of DOM Level 3 XPath (XML Path Language)
  • jrnull - Time tracker
  • jpnevulator -
  • jpgind - Generates Web galleries from JPEG/Exif files and DSC raw image files
  • Jpg2html - Generates thumbnails and the corresponding HTML
  • jpegrdf - Reads and manipulates RDF metadata in JPEGs
  • Jpegpixi - JPEG pixel interpolator
  • jp2a - Converts JPEG images to ASCII characters
  • joyd - Executes commands via a joystick or joypad
  • Jove - Text editor
  • Jokosher - Multi-track Audio Editor
  • joe - Simple command-line-based text editor
  • Jobtracker - Tracks completed and ongoing work
  • Job Scheduler - Automates executable files, shell scripts, and database procedures.
  • Jmol - Molecule viewer and editor
  • JMathLib - JMathLib- java clone of Octave, Freemat, Matlab
  • Jungle Monkey - Distributed file sharing program
  • JitterBug - Web-based bug-tracking tool
  • Jinzora - Web based media jukebox and streamer
  • Jhead - Extracts digital camera settings from the Exif files
  • Jest - Is a software project estimator.
  • jel - Compiler for simple expressions into Java byte code - Part of the GNU Project
  • Jebi - A program to record AM/FM radio and publish it to a podcast feed.
  • Jbrout - A modular photo manager
  • JBIG-KIT - Implements a data compression algorithm for high-res images
  • Java Brainfuck compiler - Brainfuck to Java bytecode compiler
  • jaxor - Creates an object to relational mapping layer
  • Jaxml - Automatically generates XML documents
  • java2html - Translates Java files to HTML - Part of the GNU Project
  • Jaron - Text mode screen saver
  • Jacquemate - Turn-based Web chess system
  • Jalmus - Education software for music sight-reading
  • Jailkit - Quickly creates limited user accounts in a chroot jail
  • jaffm - Lightweight wxWindows file manager
  • Jade - Emacs-like text editor for X11
  • Jacksum - Checksum utility written in Java
  • jack - CD ripper
  • jack-rack - Free implementation of a software-based synthesizer
  • Jacal - Mathematics program - Part of the GNU Project
  • Jabber - Instant messaging application
  • jOggPlayer - Graphical Ogg Vorbis player
  • jMusic - Classes for generating and manipulating music
  • jMax - Programming environment for real-time audio
  • jEdit Syntax Package - Text control module for Java
  • jCIFS - SMB client library written in Java
  • iWatch - A real-time filesystem monitoring program.
  • Ivtools - A collection of drawing editors
  • isync - Synchronize a local maildir with a remote IMAP4 mailbox
  • iStream - A GNOME applet for playing Internet radio streams.
  • Istanbul - Record your desktop session
  • ispell - Spell checker
  • ispbs - Management and billing system for ISP, hosting, and VoIP providers
  • ISO Master - A graphical editor for ISO images.
  • Isisdial Java - Generates telephone tones via your computer's sound device
  • Ishmail - Graphical mail reader for UNIX systems
  • Isdnserver - Decodes hex values provided by ISDN channels
  • Isabella - Gothic font
  • irssi - Text mode IRC client
  • Internet radio protocol - Playlist manager and streamer for Internet radio stations
  • IRM - Asset tracking system for IT depts. and helpdesks
  • Irc-Scroller - A dynamically updating, simple, Web-based IRC log viewer.
  • IrcGraph - Visualizes IRC traffic
  • iptables - Packet filtering framework in the Linux kernel
  • ipsvd - Set of Internet protocol service daemons
  • IPsec-Tools - A GNU/Linux port of the KAME IPsec utilities.
  • ipsc - IP subnet calculator
  • Shuffle DBuilder - sophisticated shuffle algorithm
  • iPeer - iPeer, a web-based application (written in PHP) to develop and deliver peer evaluations, review and release student comments, build rubrics and progress report forms online, configure email notifications and etc ...
  • ipchains - User-space portion of the Linux kernel packet filter code
  • ipcalc - Helps users design sub- and super-networks
  • ip6wall - Firewall script for ip6tables
  • Ion - Keyboard-friendly user interface
  • inventory - Script for gathering hardware information
  • intlfonts - Fonts for all characters Emacs 20 can handle - Part of the GNU Project
  • Interpcom - Command interpreter library for building scientific applications
  • Integrit - Intrusion detection system
  • intclock - Graphical multi-timezone clock
  • InstantRSS - Generates an RSS feed from a Web page
  • installdb - Records and stores info about installs on a system
  • install-log - Package management tool
  • Inquisitor - Inquisitor is a visual Site Ripper/Offline Browser to select and download images shown as thumbnails in a specified destination directory.
  • ink - A command line tool for displaying the ink level.
  • injector - Lets users install software without needing root privileges
  • Ingres - Enterprise SQL DBMS with QUEL as a second language and having OpenXA distributed transactions.
  • info_to_html - Enhanced version of info2html
  • info2html - Converts GNU .info files to HTML
  • Inferno - OS and development environment for distributed and networked systems
  • Inetutils - Collection of common network programs - Part of the GNU Project
  • indexpage.pl - Generates index pages and thumbnails for online image collections
  • Indent - C source beautifier - Part of the GNU Project
  • incron - An inotify cron system.
  • Incollector - Tag based notetaker
  • incident.pl - Generates incident reports for attempted security attacks
  • Imgv - Image viewer
  • imgSeek - A photo collection manager with content-based query.
  • imgSeek - Photo collection manager that can search by images
  • imediff2 - Merges two files interactively via a fullscreen text mode interface
  • imapsync - IMAP mailbox synchronization tool
  • imap_migrate - Tools for IMAP to IMAP server migration
  • ilib - Image manipulation library for developers
  • Ilias - Web-based training application
  • ikog - Simple task list manager with command line interface
  • InstallKernel - Installs the Linux kernel and automatically sets up LILO or GRUB
  • ihu - IHU is a VoIP application for GNU/Linux (using Qt and Speex), with low latency, crypted stream, minimal use of bandwith, and without intermediary servers. It is the easiest way to talk real-time with your friends (like phone) on the internet.
  • Ifmail-tx - Fidonet transport and gateway
  • Idutils - Tools for indexing - Part of the GNU Project
  • IDLEfork - Fork of IDLE, Python's small, light, 'bundled' IDE
  • ide.php - Web-based editor for quick development of server side code
  • id3tool - Editor for ID3 tags
  • id3lib - Library for manipulating manipulating ID3v1 and ID3v2 tags
  • id3edit - A command line ID3 tag editor.
  • ID3.py - ID3 MP3 info tag manipulation in Python
  • icpld - Sends ICMP requests to IP addresses and monitors the connection
  • Icewm - Window manager designed for speed, usability, and consistency
  • Iceutils - A suite of command line tools designed to make creating a game world easy.
  • icegenerator - Direct stream generator for Icecast/Shoutcast servers
  • Icecast - Streaming media server based on the MP3 audio code
  • Independent Coffeeshop Access Manager - A user manager for the NoCat wireless/wired authentication manager.
  • iGMT - Visual tool for GMT script mapping
  • iCam2 - video4linux/imlib2-based application for handling a webcam
  • iBackup - Automates backups
  • Hypermail - Converts mail into HTML pages
  • Hyperbole - Information and text management program - Part of the GNU Project
  • Hydrogen - Drum machine/sequencer
  • Hybrid Share - Is a user friendly application that allows you to share files and talk instantly with your friends.
  • hurd - Project GNU's replacement for the Unix kernel - Part of the GNU Project
  • hugs - Interpreter for the Haskell functional programming language.
  • Hugin - Cross-platform GUI for Panorama Tools
  • HuegoGallery - A dynamic photo gallery written in php
  • Httptunnel - Creates a data path in HTTP requests - Part of the GNU Project
  • httplog - Logfile rollover program
  • httpFileManager - A Web-based file management script.
  • htpasstool - htpasstool is a web-based management tool for Apache .htpasswd files
  • htop - An interactive text mode process viewer for GNU/Linux. A 'better top'.
  • htmltemplate - HTML templating engine written entirely in Java
  • Htmlrecode - Modifies HTML files
  • htmlpath - Command line HTML parser
  • HTMLatex - On-the-fly rendering of latex source in HTML documents
  • html_scrub - Filters HTML to warn users about or eliminate certain tags
  • html2xhtml - Converts HTML pages into XHTML pages
  • html2ps/html2pdf - PHP version of html2ps and html2pdf, the popular Perl packages of the same name.
  • html2pdf - Converts an HTML document to PDF format
  • Html2fo - Converts from html to xml:fo formats
  • ht://Dig - Internet search engine software
  • ht://Check - Link checker derived from ht://Dig
  • hsclock - Multi-time zone clock
  • hq3x - 3x magnification filter
  • hpecs - Hidden counter system for eBay
  • hp2xx - Reads and converts HP-GL files to various formats - Part of the GNU Project
  • host - DNS query and testing tool
  • Horgand - Graphical FM real time organ
  • Honeyd - Creates virtual hosts on a network
  • Holocrunchies - Computational holography program
  • hocr - A Hebrew character recognition c/c++ library.
  • Hobbit - Scheme to C compiler
  • hoard - Memory allocator for multiprocessors
  • Hierarchical Notebook - Organizes different kinds of data in one place
  • Hldfilter - E-mail filter
  • Hogwash Light BR - An IPS that can filter packets in layer 2 of the OSI. It is a firewall element.
  • High Level Assembly Language - Helps advanced Assembly programmers write better code
  • hk_classes - C++ libraries developing database applications
  • Hitchhiker 2000 - Astronomy simulation program
  • Hipo - An application to manage the data of your iPod.
  • hipergate - Sales force automation, e-marketing, and customer support package
  • hindent - HTML formatter
  • hilite - Highlights the output of executed commands
  • Highlight - Source code to HTML, XHTML, RTF, TeX, or LaTeX converter
  • hhmalloc - Extension of the standard malloc/free interface
  • hfloat - Library for computation with very long floating point numbers
  • Hexedit - Displays, edits, and searches in ASCII and hexadecimal
  • Herrie - A split-screen command line music player.
  • Hermes Antispam Proxy - is a generic, transparent, multi-platform anti-spam SMTP proxy.
  • Help2man - Generates manual pages from program files
  • hello - GNU version of "Hello, world!" - Part of the GNU Project
  • Height Map Generator - Terrain map generator
  • Heh - Opens files based on filename extension
  • Heartbeat - Monitors hosts and provides high-availability failover services
  • Header Browser - Creates documentation from C/C++ header files
  • Hdup - Filesystem backup tool
  • hdparm - Utility for manipulating hard drive parameters
  • HTTP Anti Virus Proxy - A proxy with a ClamAV anti-virus scanner.
  • Hashit - Library of generic hash tables
  • Hashed Text Utilities - Reimplementations of comm, diff, uniq, and cksum
  • haserl - Lets you embed shell scripts directly into HTML documents
  • hasciicam - Produces live (h)ascii video on the Web
  • Harmonics - Harmonics files for Xtide
  • Harbour - Cross-platform compiler for the xBase language
  • happydigger - Catalogs archaeological finds
  • HapCluster++ - An MCMC based statistical tool for association mapping.
  • Hanzim - Visual, interactive Chinese character and word dictionary
  • Hanterm - Xterm improvement for Hangul support
  • My Handy Restaurant - Software for running a full-service restaurant
  • Handbrake - DVD Ripper and Audio/Video Converter
  • Hammerhead - A Web stress testing tool.
  • halloc - Simplifies memory disposal tasks
  • halifax - Client applications suite for fax applications - Part of the GNU Project
  • Hackers - Lets you switch between various NetHack characters
  • Hackbot - Host exploration tool and bannergrabber
  • System Garden Habitat - A capacity management and performance monitoring system.
  • hOpla - Link between XML files and SQL databases - Part of the GNU Project
  • h5utils - Utilities for visualization and conversion of data in the HDF5 format
  • Gzip_x86 - 'gzip' distribution tuned for faster decompressing
  • gzip - Compresses and decompresses files - Part of the GNU Project
  • Gxmlviewer - XML viewer for Gnome
  • gxmessage - gxmessage - GTK2-based xmessage clone
  • gwyple - GUI for handling bug reports
  • Gwydion-dylan - Dylan development tools from the Gwydion Dylan Team
  • Gwyddion - An SPM data analysis program.
  • GNOME War Pad - Play-by-email space conquest strategy game
  • Gwork - Tracks the work a company does and/or the products it sells
  • Gnome Wireless Applet - Tool for managing wireless network cards
  • gwget2 - Gnome2 front-end to wget
  • Gwenview - Image viewer for KDE
  • Gwenhywfar - Provides OS abstraction functions
  • Gweled - A Bejeweled/Diamond Mine clone for Gnome
  • Gnome Workstation Command Center - GUI interface to the command line
  • GNU Waveform Viewer - Gwave is a waveform viewer.
  • gvpe - Secure vpn network among multiple nodes over an untrusted network - Part of the GNU Project
  • gv4l - Video4Linux frontend for 'transcode'
  • gv - Frontend for ghostscript - Part of the GNU Project
  • GutenPy - A text reader and catalog browser for Project Gutenberg.
  • gurlchecker - A full graphical Web link checker for GNOME 2.
  • gurgle - Formerly the GNU Report Generator - Part of the GNU Project
  • Gup - Lets a remote site change its newsgroups subscription
  • GuiLoader/C++ - A C++ binding to GuiLoader library
  • GuiLoader - A high-performance and compact GuiXml loader library
  • Guile - GNU extensibility library - Part of the GNU Project
  • guile-gtk - Guile language bindings for Gtk+ version 1.2 - Part of the GNU Project
  • Guile-gnome - Helps Scheme programmers develop visual applications - Part of the GNU Project
  • guile-dbi - Guile database abstraction layer - Part of the GNU Project
  • guile-dbd-postgresql - PostGreSQL database driver for guile-dbd
  • guile-dbd-mysql - MySQL database driver for guile-dbd
  • Guikachu - Resource editor for PalmOS systems
  • guestbook - Processes input from a Web guestbook form
  • Gubby - Tracks where and when procmail delivers your mail
  • guavac - Free Java compiler
  • GUASI - Generic Userspace Asyncronous Syscall Interface
  • Guarddog - Firewall generation/management utility for KDE 2
  • Gtypist - Typing tutor program - Part of the GNU Project
  • GeoTIFF Viewer - A viewer for GeoTIFF files.
  • GTS - Functions for 3D surfaces meshed with interconnected triangles - Part of the GNU Project
  • gtranslator - Edits gettext po files
  • gtmess - Is a console MSN Messenger client.
  • GTKWave - GTKWave is a GTK+ based wave viewer which reads LXT, LXT2, VZT, and GHW files as well as standard Verilog VCD/EVCD files.
  • gtk-viewer - Simple image viewer for GNOME2
  • GTKtalog - Organizes and browses a CD-ROM database
  • GTKStep - Improves the look and feel of the GTK+ widget set
  • gtkpod - GTK based ipod interface
  • GTKPBButtons - A visualisation client for PBButtonsd.
  • GtkOL-LDAP - Is a client GUI designed to manage OpenLDAP directories.
  • Gtkmm2 - C++ interface to GTK+ 2.0
  • Gtkmm - C++ wrapper for GTK+
  • GtkLP for CUPS - A frontend for printing with CUPS.
  • GtkHTML - HTML rendering/editing library
  • gtkgrepmail - GTK frontend to grepmail
  • Gtkeyboard - Graphical keyboard
  • gtkdiff - Graphical diff tool
  • Gtkdialog - GUI creation utility
  • GtkDatabox - A GTK+ widget to display large amounts of numerical data with curves.
  • gtk2hack - GUI for the 'nethack' game
  • GTK+ - GNU toolkit for X windows development - Part of the GNU Project
  • Gtk-nocker - TCP security port scanner
  • Gtk-IPTables - A GTK-based frontend for iptables written in C.
  • gtk-gnutella - A GTK+ Gnutella clone.
  • GTK Photo Gallery - An application that manages photograph collections.
  • Gtick - Digital metronome - Part of the GNU Project
  • GTelnet - GNOME frontend for telnet, rlogin, and ssh
  • gtapecalc - Calculator that displays a paper tape
  • gt5 - A text mode utility to determine disk usage
  • Gsysinfo - System monitor for the GNOME panel
  • Gswitchit - Xkb state indicator
  • Gstreamer - Library and tools for streaming media
  • Gnome SSH Tunnel Manager - A front-end for managing SSH-tunneled port redirects.
  • gstat - Geostatistical modelling, simulation, and prediction
  • gst-python - Wrapper for the Gstreamer library
  • GStreamer-Editor - Graphical editor for GStreamer multimedia pipelines
  • Gnome Simple Stateful Music Player - A simple music player for GNOME.
  • GNU Generic Security Service - Libgss - Implementation of the Generic Security Service API - Part of the GNU Project
  • Gspoof - Facilitates building and sending TCP packets
  • gSOAP - A web services toolkit that provides SOAP/XML to C/C++ binding.
  • Gsmbscanner - NetBIOS scanner program
  • gslist - Game server browser
  • gslapt-get - GTK version of slapt-get
  • GSL - Routines for numerical computing - Part of the GNU Project
  • gShow TV - GUI frontend to view listings and record TV programs
  • GNU SASL - SASL network authentication library - Part of the GNU Project
  • GSAMBAD - GSAMBAD is an easy to use GTK+ frontend for the SAMBA file and print server.
  • Grutatext - Plain text to HTML converter
  • Grubconfig - Helps install the GRUB bootlaoder
  • GNU GRUB - GNU GRand Unified Bootloader - Part of the GNU Project
  • Grsecurity - Security system that implements a detection/prevention/containment strategy
  • Group-Office - A Web-based groupware office suite.
  • GROUP-E - integrates groupware, project management and business server on one platform.
  • Gronk - Web-based MP3 jukebox
  • Gromit - System configuration tool
  • groff - Document formatting system - Part of the GNU Project
  • Grisbi - A personal finance manager.
  • Grip - GNOME-based CD player, ripper, and MP3-encoder
  • Gringotts - Securely saves sensitive data
  • GRhino - An Othello/reversi with strong AI.
  • Gretools - Vocabulary building tool for Gnome
  • Gretl - Software for econometric analysis - Part of the GNU Project
  • Grepmail - Searches for emails in normal or compressed mailboxes
  • Grep - Finds lines that match entered patterns - Part of the GNU Project
  • Greg - Software testing framework - Part of the GNU Project
  • GreenT - A terminal emulator with tabs written in C#.
  • GreatCharts - A commandline tool that generates stock charts.
  • grdesktop - A rdesktop client
  • Gravityd - Graphical display of network testing tools
  • Gravit - An OpenGL gravity simulator.
  • GRASS (Geographic Resources Analysis Support System) - Geographic information system
  • graph-tool - graph-tool is general graph measurement and manipulation program, aimed to help with statistical measurements of large graphs.
  • grap - Language for typesetting graphs
  • granule - Flash card system
  • Gramps - Genealogy program
  • Grammatica - C# and Java parser generator
  • Graft - Package management utility
  • Grafist - Bandwidth utilization viewer
  • GradeL - A gradebook application.
  • grabinfo - Display metrics about a server using XML
  • Gqview - Image browser
  • GQradio - A radio tuner application.
  • Gq - GTK-based LDAP client
  • gpub - Desktop publishing application for GTK--
  • Gpsui - Runs processes from the desktop
  • GPSMan - Is a graphical manager for GPS data. It works with Garmin, Lowrance, and Magellan receivers.
  • GPS - Simulates particle behavior
  • Gpsdrive - Map-based navigation system
  • gPS - Reports process status
  • gprolog - Prolog compiler - Part of the GNU Project
  • Gnome Predict - A real time satellite tracking program for GNOME.
  • g++ - C++ compiler - Part of the GNU Project
  • gPodder - A podcast receiver/catcher for Gnome/GTK+.
  • GPLIGC - Analyzes IGC flight data from GNSS flight data recorders used by glider pilots
  • gplflash - Free implementation of the 'Flash' multimedia player
  • GPixPod - Organize photos on your iPod, freely!
  • gpivtools - Set of tools for the Particle Image Velocimetry technique
  • gpiv - GUI for analyzing images obtained by the Particle Image Velocimetry technique (PIV)
  • Gphoton - 3d modeller with integrated ray tracer
  • Gphotocoll - Tool for visualizing and classifying images and photos
  • Gphoto2 - Retrieves, organizes, and publishes images
  • GPG-Crypter - GPG-Crypter is a GnuPG (GPG) frontend to encrypt and decrypt files and/or textinput to the inputfields.
  • GPeriodic - Periodic table application
  • Gperf - Generates a hash function - Part of the GNU Project
  • Gpdf - PDF viewer for Gnome
  • Gpasman - Password manager
  • gpaint - GNOME paint program - Part of the GNU Project
  • gpa - The GNU Privacy Assistant
  • Gotmail - A utility to non-interactively download email from a Hotmail account.
  • Gossip - Instant messaging client for Gnome
  • gospy-applet - A GNOME applet monitoring servers and Web pages.
  • GoSamba - SAMBA WebGUI A set of PHP/PERL-scripts to manage SAMBA over the web
  • Gorm - Graphic Object Relationship Modeler - Part of the GNU Project
  • Goose - Statistical computation library
  • GOOPS - Object-oriented extension to 'guile' - Part of the GNU Project
  • Googleware - Automatically queries Google
  • Good Weather Desklet - A weather/forecast desklet for GNOME.
  • Goldwater - Middleware component of the DotGNU project - Part of the GNU Project
  • GoldenPod - A podcast aggregator
  • Goggles Music Manager - A music collection manager and player.
  • GOffice - A Library for Office Software Development
  • Goblin Graph Library - Graph optimization package
  • Gobby - Collaborative Editor
  • GOB - GTK+ preprocessor
  • Gnuzilla / IceCat - GNU version of popular web browser - Part of the GNU Project
  • GNU xhippo - A GTK-based playlist manager for various UNIX sound players.
  • GNUTS - GUI toolkit abstraction library
  • Gnutrition - Nutrition analysis software - Part of the GNU Project
  • GNUtls - A library implementing TLS 1.0 and SSL 3.0 protocols - Part of the GNU Project
  • gnusysutils - Planned group of utilities for system administrators - Part of the GNU Project
  • GNUsTicker - gnusticker
  • GNUstep - A graphical, object oriented programming environment - Part of the GNU Project
  • GNU SQL - Database management system - Part of the GNU Project
  • gnusound - Multitrack sound editor for Gnome - Part of the GNU Project
  • gnuskies - Project to create a free version of the xephem program - Part of the GNU Project
  • Gnu 8085 Simulator - A graphical 8085 simulator and assembler with a debugger.
  • gnushogi - Japanese version of chess - Part of the GNU Project
  • gnuschool - Is a web application for educators, students, and school administrators. - Part of the GNU Project
  • GNUscape navigator - Web browser that runs under GNU Emacs
  • GNUs - Emacs newsreader - Part of the GNU Project
  • GNU robots - Real-time game - Part of the GNU Project
  • gnuradio - Software to create digital radio signals - Part of the GNU Project
  • gnupod - Lets you use an iPod under GNU/Linux - Part of the GNU Project
  • gnuplot - A plotting package which outputs to X11, PostScript, PNG, GIF, and others.
  • GnuPG::Interface - An object-oriented Perl interface to GnuPG.
  • gnupg (GPG) - Complete implementation of the OpenPGP Internet standard - Part of the GNU Project
  • gnunet - Anonymous peer-to-peer file-sharing - Part of the GNU Project
  • GNUMP3d - A light-weight audio server - Part of the GNU Project
  • GNU Messenger - Secure messaging system - Part of the GNU Project
  • Gnumeric - Math program intended to replace commercial spreadsheets - Part of the GNU Project
  • GNUMed - Software for a paperless medical practice - Part of the GNU Project
  • gnumach - Microkernel of the GNU system - Part of the GNU Project
  • gnulib - GNU portability library - Part of the GNU Project
  • GnuLedger - Income and expense tracker
  • GNUjump - SDLjump is a simple game where your goal is to keep jumping to upper falling platforms in order to avoid touching the lower part of the screen. - Part of the GNU Project
  • GNUitar - Real-Time Guitar Processor
  • gnu Hosting Helper - A web hosting management package.
  • GNU go - Plays the game of Go - Part of the GNU Project
  • GNU Gatekeeper - A free H.323 gatekeeper.
  • GNUe Application Server - Project to develop a complete ERP system - Application Server. - Part of the GNU Project
  • GNU Edu - GNU Edu is an indexing system for educational resources
  • GNUData - GNUData is a system of storage of information
  • gnucomm - GNU telecommunications project - Part of the GNU Project
  • GNUCash - Personal and small business money-management software - Part of the GNU Project
  • GNUcap - A general purpose circuit simulator - Part of the GNU Project
  • Gnuboy - Gameboy emulator
  • GNUbik - 3D Rubik's cube game - Part of the GNU Project
  • gnubiff - Mail notification program - Part of the GNU Project
  • gnubg - Plays and analyzes backgammon games and matches - Part of the GNU Project
  • GNU Visual Debugger - Graphical front end for debuggers
  • GNU.FREE - Internet voting system
  • gnu-crypto - Project to produce a full set of Java cryptographic tools - Part of the GNU Project
  • gnu-arch - Revision control system - Part of the GNU Project
  • GNOWSYS - Hybrid database server with a kernel for semantic computing - Part of the GNU Project
  • Gnotepad+ - HTML and text editor - Part of the GNU Project
  • GNotary client - A GUI client for the GNotary digital notary service.
  • gnotary - Project to produce a digital notary service - Part of the GNU Project
  • gnormalize - A ripper, encoder, audio converter, MetaInfo editor, and front end to normalize.
  • Gnopernicus - Screen reader for GNOME desktop
  • Gnonlin - A non-linear editing library built on top of GStreamer.
  • Gnomoradio - Finds, fetches, shares, and plays music that is freely available for file sharing
  • gnoMint - A certification authority management tool for GTK/GNOME.
  • Gnome-utils - Utilities/apps for use with GNOME
  • gnome transcript - SQL database client
  • Gnome Toaster - CD creation suite
  • Gnomeradio - FM radio tuner
  • Gnome-pilot - Daemon for pilot synchronization
  • Gnomemm - C++ binding for the GNOME libraries
  • GnomeLDAP - Administrative tool for LDAP directories
  • gnomeGo - A GUI for gnuGo.
  • Gnome Games - Gnome Games is a collection of games for the GNOME desktop
  • Gnome Flow - Calculates and visualizes steady-state fluid flows
  • Gnome-find - GUI version of the GNU 'find' utility
  • Gnomedb - Framework for developing database applications
  • Gnome commander - File manager
  • Gnome Character Map - Selects high ASCII characters
  • Gnome ICU - Internet communication utility
  • Gnome - The GNU desktop - Part of the GNU Project
  • gnome-terminal - Standard GNOME terminal application
  • Gnome Swallow - Swallow any X program into the GNOME 2 panel (especially useful for dock apps).
  • GNOME Sudoku - A generator and player for Sudoku puzzles.
  • gnome-speech - Speech services for Gnome
  • Gnome Screen Ruler - A customizable screen ruler for GNOME.
  • GNOME Schedule - A system schedule maintenance tool.
  • Gnome-python - Interfaces to gnome-libs
  • Gnome-print - GNOME printing architecture
  • gnome-network - GNOME Network is a set of client network-oriented tools
  • gnome-nettool - Graphical interfaces for common command line network tools
  • Gnome Netstatus - Monitors and reports on your network interfaces
  • gnome-mag - Screen magnifier for Gnome
  • gnome-ls - A file listing utility using GnomeVFS.
  • gnome-hearts - An impementation of the classic hearts card game for the Gnome desktop.
  • Gnomba - GUI Samba browser
  • Gnofract4D - Fractal drawing program
  • gnofin - GNOME checkbook program
  • Gnocl - GTK/Gnome extension for Tcl
  • Gnochive - GUI frontend for multiple archivers - Part of the GNU Project
  • Gnobog - Bookmark organizer
  • gno3dtet - 3D Tetris
  • Gnickr - Software that integrates Flickr with Gnome.
  • Gneutronica - Is a MIDI drum machine.
  • Gneuro - Euro converter
  • Gnet - Network library
  • Gnatsweb - Web interface to the GNU bug management system - Part of the GNU Project
  • Gnats - Bug tracking system - Part of the GNU Project
  • GNAT - A complete Ada95 compilation system - Part of the GNU Project
  • GNU Gnash - Flash Movie Player - Part of the GNU Project
  • Gnarwl - Autoresponder
  • gmusicbrowser - A jukebox for large collections of MP3 and Ogg files.
  • GMT - Geographic mapping tools that produce EPS illustrations
  • gmsl - Collection of 'make' functions
  • Gmsh - 3D finite element mesh generator with built-in CAD and post-processing facilities
  • Gmrun - Run program utility
  • gmp - The GNU Multiple Precision Arithmetic Library - Part of the GNU Project
  • gMobileMedia - A GTK application used to browse a mobile phone filesystem.
  • Gmmusic - Database frontend to organize a music collection
  • Gmessage - Replacement for xmessage
  • GMediaServer - A UPnP compatible media server.
  • gmane - Converts mailing lists to newsgroups and back
  • gmandel - Displays and manipulates fractals
  • gman - GUI for the man system
  • gmailsender - A Mono based mail sending application.
  • GLUE - GNU Internet groupware project - Part of the GNU Project
  • glsnake - Stress-relieving toy based on Rubik's snake
  • GLPK - GNU Linear Programming Kit - Part of the GNU Project
  • glParchis - A 3D game of Parcheesi.
  • Glom - GUI for PostgreSQL tables
  • GNU GLOBAL - Source code tag system for C, C++, Java, and Yacc - Part of the GNU Project
  • Globulation 2 - A multiplayer RTS that reduces micro-management.
  • Gliv - OpenGL image viewer
  • glinuxsms - A GNOME2 front-end for sending SMS messages.
  • Glimmer - Code editor
  • gLife - Evolutionary simulation game
  • Glibench - GliBench SMP is an SMP enabled benchmark for testing you computers performance.
  • glibbind - Binds properties in GLib and GTK+ objects
  • GLib - Core library that forms the basis of GTK+ and GNOME - Part of the GNU Project
  • glFlow - A fast, robust (D)DoS detector.
  • gleem - Library of 3D widgets - Part of the GNU Project
  • gld - Greylisting server for Postfix
  • glChess - A 3D chess interface.
  • glatex - A program that helps you edit LaTeX document files.
  • glastree - Builds live backup trees with branches for each day
  • glark - 'grep'-like searching for complex regular expressions
  • Glame - Sound editor
  • Glade - A user interface builder for GTK+ and Gnome
  • Glade-- - Backend for glade to create C++ sources
  • Glabels - Label and business card program for Gnome
  • GL-117 - Action flight simulator
  • GKrellM - System monitor package
  • GK Log - Log analyzer and marker
  • Gjots - Lets you make notes in tree form
  • Gizmo Daemon - A program to control a computer in any way based on events from input devices.
  • giv - An image and vector viewer.
  • Gitarella - A Web frontend for GIT.
  • gnuit - Tools for simple, daily file and system management tasks - Part of the GNU Project
  • Giptables Firewall - Scripts to generate iptables rules for Linux 2.4.x and newer kernels
  • Gina - Modified version of the Zina MP3 streamer/jukebox
  • Gimp-print - Print plug-in for the GIMP and GhostScript driver for Epson printers
  • GIMP Dynamic Text - GIMP plug-in that modifies the text tool
  • GIMP - GNU image manipulation program - Part of the GNU Project
  • Gimmix - Gimmix is a graphical music player daemon (mpd) client written in C using GTK+2.
  • Gimmage - A simple image viewer that supports command line operation.
  • 2532|Gigs - A PHP/SQL gig lister.
  • GIFT - Content based image retrieval system - Part of the GNU Project
  • giFT-FastTrack - An implementation of the FastTrack P2P protocol for giFT.
  • Gifsicle - Tool for manipulating GIF image files
  • gicq - GTK+ based ICQ instant messaging client
  • GNOME Iconset Builder - A suite for generating icon themes for GNOME.
  • giac - Free computer algebra system
  • Ghronos - Gaming clock intended primarily for chess and go
  • Ghostview - Graphical front end to Ghostscript
  • GNU ghostscript - Interpreter for the Postscript and PDF graphics languages - Part of the GNU Project
  • Ghex - Binary file editor
  • Ghemical - Molecular modelling application
  • ghc - Haskell compiler and interactive environment
  • GGZ Gaming Zone - Online gaming center and integration framework
  • GGv - Document viewer
  • Ggradebook - Fully-featured GNU gradebook - Part of the GNU Project
  • ggiterm - Terminal emulator that can be displayed on a variety of targets
  • ggcov - GUI for reporting test coverage data
  • Gnu Gadu 2 - Modular instant messaging client
  • Gfslicer - Splits and joins files for removable media
  • gfortran - Fortran compiler - Part of the GNU Project
  • gforth - Free implementation of the ANS Forth language - Part of the GNU Project
  • Gfontview - Font viewer for outline fonts
  • GFLame - Is a GTK2 frontend for lame MP3 encoder
  • gfeed - RSS feed reader for Gtk+ 2.0
  • GNU Font Editor - Graphical font editor - Part of the GNU Project
  • gfax - Front end fax manager for GNOME
  • gFast File - A fast and useful filemanager.
  • Gettext - Tools to produce multi-lingual messages - Part of the GNU Project
  • Getmail - Simpler replacement for fetchmail
  • Getleft - Downloads all links from a particular URL
  • getgui - Adds a GUI to shell scripts
  • getattach.pl.txt - Retrieves email attachments
  • Getargs - Python command line parser
  • getID3 - Extracts useful information from multimedia files
  • getAbsPath - Converts paths from relative to absolute
  • Gestalter - Vector drawing program
  • GeSHi - A generic syntax highlighter for PHP.
  • gerstensaft - Frontend for Simple Asynchronous File Transfer
  • geomview - Interactive 3D viewing program
  • gensys - Generates random passwords
  • genroms - Generates ROM files for arcade machines or emulators
  • Geniustrader - Toolbox for systematic stock trading
  • Genius - Arbitrary precision integer and multiple precision floating point calculator
  • Genigma - Free 'enigma' emulation
  • Gengetopt - Generates a C function that parses and validates command line options - Part of the GNU Project
  • gengen - A parameterized-text-generator generator based on a template - Part of the GNU Project
  • Geneweb - Genealogy software
  • generictionary - A generic, modular, and interactive dictionary.
  • Generic NQS - Batch processing system
  • gems - Shows a single console session in different computers or terminals
  • Gemdropx - Pull gems down and throw them back to make matches
  • gElemental - A periodic table viewer.
  • GEGL - A graph-based image processing framework.
  • Geek Credit - p2p secure complementary currency
  • Gedit - Lightweight text editor for GNOME
  • Gedafe - Web front end for databases
  • Gecode - Constraint programming library in C++.
  • Gecko Multimedia System - A replacement for your VCR, DVD, MP3, and CD player.
  • Geany - A fast and lightweight IDE using GTK2.
  • GNOME Debian Package Manager - A graphical manager for Debian packages.
  • gdpc - Visualizes molecular simulation
  • GdMap - A tool to display disk space using treemaps.
  • Gdm - GNOME version of xdm
  • Gdkxft - Provides anti-aliased fonts
  • gdivelog - A SCUBA dive logging application for GNOME.
  • Gdeditor - Text editor
  • gdcalc - RPN calculator with financial, development, scientific & statistic functions
  • GDC - A utility to calculate compressible flow (Gas Dynamics Calculator).
  • Gdbm - Replacement for the 'dbm' and 'ndbm' libraries - Part of the GNU Project
  • Gdb - GNU Debugger - Part of the GNU Project
  • gdado - Dice roller for roleplaying
  • gd - Library for creating PNG, JPEG, or WBMP images
  • gcx - Complete set of data-reduction functions for CCD photometry
  • GCstar - A collection manager.
  • Gcron - Replacement for Vixie cron - Part of the GNU Project
  • Gcount - Web site counter
  • Gconf - Registry system
  • Gcompris - Educational suite for children from 2 to 10 - Part of the GNU Project
  • Gcompressor - GUI frontend for decompression tools
  • GCL - Compiler and interpreter for Common Lisp - Part of the GNU Project
  • gcjwebplugin - Browser plugin that executes Java applets - Part of the GNU Project
  • gcin - Input method server for Big5 traditional Chinese character sets
  • GCfilms - An application for managing a movie collection.
  • gcells - A game like 8-cell-game or 15-cell-game
  • GCC - GNU Compiler Collection - Part of the GNU Project
  • Gcalctool - Desktop calculator with basic, financial, and scientific modes
  • Gcal - Is a program for calculating and printing calendars, and is the GNU implementation of the universally known cal and calendar programs. - Part of the GNU Project
  • Gbonds - U.S. savings bond inventory program
  • Gbiff2 - Displays headers when new mail has arrived
  • gawk - String manipulation language - Part of the GNU Project
  • GPL Arcade Volleyball - A multi-platform Arcade Volleyball clone
  • gatO - Interface to the UNIX command 'at'
  • AustinSmoke GasTracker - A fuel efficiency and gas price tracking software.
  • Garpd - GNU Gratuitous ARP Daemon
  • Garnet - Graphical toolkit for Lisp
  • Gaphor - Gaphor is an easy to use modeling environment
  • GAP - GAP is a system for computational discrete algebra, with particular emphasis on Computational Group Theory.
  • ganttweb - A tool for publishing Gantt charts on the Web.
  • GanttPV - Createa project schedules, assigns resources, manages workload, and prioritizes follow up items.
  • Gammu - GSM mobile manager for various cellular phones (Nokia, Siemens, Alcatel, others)
  • GAMGI - A program to build, view, and analyze atomic strucures.
  • Gameping - Monitors games servers
  • Game Launcher - A front end for game emulators
  • Gambit - Tools for game theory
  • Gamazons - Board game
  • gama - Geodetic network adjustment program - Part of the GNU Project
  • PHPGallue - A server-based image management system.
  • galleryscr.pl - Fetches images and creates a random collage
  • galleryadd.pl - Recursively adds directories or images to a Gallery installation
  • Gallery - Web-based photo album
  • Gallery.py - Makes static picture galleries
  • Galette - Manage members and contributions for societies and groups
  • Galeon - Web browser
  • Gale - Instant messaging software
  • Galculator - Scientific calculator
  • Galaxium Messenger - GNOME Instant Messenger
  • gajim - Jabber client written in PyGTK
  • Gaim-e - Encryption plug-in for gaim
  • GAG - Graphical boot manager
  • Genetic Algorithm File Fitter - A file filter powered by a genetic algorithm.
  • Gaby - Small personal database manager
  • Gabber - Jabber client for GNOME
  • GAA Argument Analyzer - Analyzes command line arguments
  • gThumb - GNOME image viewer
  • gTaxEstimator - US tax preparation software
  • gQueue - Frontend for CUPS queue
  • gPHPEdit - GNOME2 editor for PHP files
  • gNumExp - Gui frontend to to the NumExp language
  • gFTP - Multithreaded FTP client
  • gEDA-gaf - Tools for electronic circuit design
  • gDesklets - Provides framework for desktop applets.
  • g4u - Lets users clone hard disks by using FTP
  • Ghost for Linux - A hard disk and partition imaging/cloning tool using compression and FTP.
  • G3DViewer - A a 3D file viewer.
  • g3data - Extracts data from graphs
  • g-page - Sends text messages to pagers or SMS enabled PCS phones
  • Fyre - A program for interactive exploration of chaotic maps.
  • fwsnort - Translates snort rules into an equivalent iptables ruleset
  • fwlogwatch - Firewall log analyzer and realtime monitor/response tool
  • fwknop - Adds an additional layer of security to services such as SSH
  • Frugal Windowing Environment - A user-space client-server framebuffer windowing environment.
  • Firewall Builder - Multi-platform firewall management software.
  • fwanalog - Parses and summarizes firewall logfiles
  • fuse - Helps userspace programs export a virtual filesystem to the kernel
  • furl - Displays the HTTP headers returned by Web servers
  • Catch the Furball - Icebreaker game
  • FUPlayer - A music manager/player/ripper/burner.
  • FunkLoad - A functional and load tester for Web applications.
  • funct - Studies real or complex functions of one real variable
  • Ftwalk - Scripting language
  • ftpproxy - Application level gateway for FTP
  • Ftpcopy - Copies files or directory trees
  • ftpcluster - Integrates individual FTP servers into a single server
  • ftpStats - Xferlog analyzer
  • ftp-outboxd - Manages outgoing ftp spools
  • ftime - Displays the timestamp on a file
  • fswebcam - A neat and simple webcam app for GNU/Linux
  • Fslint - Finds redundant disk usage
  • Fsh - Replacement for ssh that automatically reuses ssh tunnels
  • fsgrep - Search for matches in files in a directory structure.
  • Fast Secure File System - A secure, distributed, scalable, user-space file system.