Categories
GPLv2
Projects licensed under GPLv2
- 3D Battle Go — 3d arcade version of the ancient Chinese game Go
- 3dFB — 3D file manager and browser
- 3D Pong — A vector-based ball-bouncing game for X-Window
- A+ — Programming language (APL interpreter)
- a2b — An abstract train game.
- Aap — The Aap program executes recipes. It is a kind of super-make program.
- Abook — Addressbook program
- Absence — Calendar for keeping track of people
- Absolut Engine — Advanced news/content publishing system
- Abuse — Shoot-'em-up game
- ACal — Simple Web-based calendar
- acct — GNU system accounting utilities
- Achievo — Web-based project management and tracking tool
- ACL2 — Programming language for modelling computer systems and proving properties of those models
- Acon — Displays Arabic text
- Acovea — Compiler optimization tool
- Active — Free groupware
- Ada Components — Toolset for Ada
- AdaDoc — Documentation tool for Ada
- Addendat — Blogging program that can be updated from either a CGI or shell interface
- Ad-hoc Support Library — a user-space library which provides an API to faciliate implementation of routing protocols for wireless ad-hoc networks in GNU/Linux.
- adjtimex — Displays or sets the kernel time variable
- Advance — Personal information management (PIM) system
- AFD — Automatically distribute files
- AfterStep Clock Applet — Clock
- Agatha — A simple PHP script for streaming music and playlists with Apache.
- Agendaroids — A simple vector-based asteroid-shooting game
- Agide — a framework in which separate tools can work together.
- AIDE — Intrusion detection system
- Airs — check for new TV episodes
- AJAX Book Reader — A Web application for displaying large texts one page at a time.
- akregator — RSS/Atom feed reader and aggregator for KDE
- Alarm Pinger — Monitors IP devices by ICMP echo requests
- Alfandega Firewall — Implements iptables-based firewalls
- Aliaslu — Looks up email addresses in an NIS map
- alien — Converts between different free software packaging formats
- Aliens — Alien-shooting game for X-Window
- Alist — Collects and stores information about systems
- AllCommerce — E-commerce/content application
- AllTray — Software for docking any program.
- AMaViS-ng — Searches attachments and archives for malicious code
- Ampache — Apache/PHP-based MP3/Ogg file manager and player
- andatool — Displays the frequency of regex and logfile matches
- Anguly Mail Client — A lightweight Mail Client written in C and Gtk+
- animail — Multiserver mail retrieval utility
- Antiparser — a fuzz testing and fault injection API.
- Anti-Web httpd — Single-process Web server
- antiword — Converts MS-Word documents to ASCII and Postscript
- Anubis — Processes outgoing mail
- APing — advanced ping program written in python that can make four type of ICMP probes
- Apophenia — Statistics library for C
- appctl — A generic application control framework.
- APSR — TCP/IP packet sender to test firewalls and other network applications
- apvsys — System for managing different versions of various applications
- ara — Tool for querying the Debian package database
- Archive — Drag-and-drop multi-format archiver
- Ardour — A multitrack, multichannel audio recorder/non-linear editor.
- ArgusEye — A GUI for the Argus network auditing suite.
- Aria — Download tool with GUI that can pause, resume, and queue downloads
- arpalert — Uses ARP address monitoring to help prevent unauthorized connections
- Arping — ARP level ping utility
- ASCEND — A flexible modelling environment for hard engineering and science problems.
- Ascii — Prints an argument in various ASCII formats
- ascpu — CPU load monitor
- asmem — Memory utilization monitor
- Asterisk Managment Portal — A turn-key SMB phone system based on The Asterisk PBX, complete with Web GUI.
- asteroids3D — Game of blowing up asteroids
- Astroconst — Makes header files that define astrophysical constants
- aterr — Threaded forum system
- Atlc — Package for designing and analyzing electrical transmission lines and directional couplers
- Atool — Script for managing file archives
- Aub — Downloads and decodes articles from newsgroups
- Audacity — Audio editor
- authforce — An HTTP Authentication brute forcer.
- authz-tools — Tools for manipulating 'authz' files
- AutoDia — Creates XML diagrams
- AutoFW — a firewall script for broadband and dial-up users.
- autoindex — Lists and gives access to files in a directory
- auto nice daemon — Automatically renices jobs
- AutoProfile — Profile Manager Plugin for Gaim
- Autoproject — Creates a skeleton source package for a new program
- Autotable — Automates maintaining a set of SQL tables
- Autothrottle — Adjusts CPU according to the system load
- Averist — Adds an authentication layer to any CGI application written in Perl
- AVFS — Lets programs look at archived files without having to recompile them
- aview — High-quality ASCII art browser/animation player
- aviManager — A movie database for large movie collections written in Perl.
- awhttpd — Single-process Web server
- AWOL — In/out board
- b. — Bookmark manager
- b2ePMS — replaces paper phone message slips with emails sent via a web browser form directly to the recipients inbox.
- b2evolution — News and Weblog tool
- Babylon — Lets groups chat and draw over TCP/IP connections.
- Backroute — Router monitor
- BAD HARVEST — is a form-mail CGI script that helps you to hide email addresses from "harvesters" on web pages.
- BakaSub — A GTK+/Gnome video subtitling program.
- Balance — TCP proxy
- Balsa — GNOME mail client
- bandwidthd — Tracks and graphically displays TCP/IP network usage
- Baobab — An application to analyse directory trees
- Barcode — Converts text strings to printed bars
- BashBurn — A CD burning utility.
- Bash.Diff — Extended version of the 'bash' shell
- Basic File Splitter ( bfsplit ) — Basic File Splitter (bfsplit) splits files into pieces.
- Batemail — Strips attachments from email messages
- Battle Just Started — 3D arcade tank battle
- BBrun — Run window for Blackbox
- bbs100 — BBS in the style of DOC
- beep — Makes the console beep
- Benchmark-Timer — Times and becnhmarks portions of code
- bestfit — Optimally chooses files to be put on a CD or other media
- bfr — Pipe buffer
- bib2html — Converts a BibTeX database to HTML files
- BIEW — Is a multiplatform portable viewer of binary files with built-in editor in binary, hexadecimal and disassembler modes. It uses native Intel syntax for disassemble.
- BIF — PHP framework for Web application development
- bigFORTH — Forth compiler
- Biggles — Creates 2D scientific plots
- Big Sam — Guestbook
- Bill's OpenGL Library — an OpenGL scenegraph/rendering library.
- binkd — FidoTech TCP/IP mailer
- Binutils — Collection of binary utilities
- BioImageXD — BioImageXD can do 3D image ananlasis and visualisation of microscopy and other 3D data, and also make movies.
- BIRD — Dynamic routing daemon
- BIRT — Resizes multiple images at once
- BitDecoder — decodes bit-fields to human readable text.
- Bitlbee — IRC gateway to other chat networks
- BitPacket — a Python representation for bit field structures.
- Blender — 3D modeller/renderer
- Blip_Buffer — Band-limited sound synthesis library for use in video game sound chip emulators
- BlueDot — Tracking and Web site activity measurement script
- BlueProximity — automatically locks and unlocks the screen when you and your bluetooth enabled device leave/enter the desk area.
- BlueZ — Bluetooth for GNU/Linux
- Blwm — Window manager
- BMI — Calculates body mass index
- boa — Web server
- Board-tnk — Discussion board
- BoboBot — Jump-and-run game
- Bobot++ — IRC Bot that can be scripted using Scheme
- Bochstools — Scripts and programs to be used with the Bochs-emulator
- bogofilter — Spam filter
- Bond — Tool for developing database frontend applications
- bonddb — Object-oriented wrapper for PostgreSQL
- Bonsai Ruby — builds dynamic web sites that run anywhere. Perfect for portfolios, catalogues and other image-heavy sites.
- Booby — PIM that supports bookmarks, contacts, notes, news and tasks
- booh — Booh is a static Web-Album generator.
- Bookcase — Collection manager for KDE
- Bookmark4U — Bookmark manager
- Bookmarker — Bookmark manager
- Bootstrapper — Creates a customized bootstrapping script
- Botec — a simple astrophysical and orbital mechanics calculator.
- botnet — Library for development of IRC bots
- Bras — Command execution tool
- breeze — CD Digital-Audio Player
- BrickOut — A simple brick-breaking game
- Brikx — A game in which your goal is to remove all tiles.
- brinance — Lightweight personal finance program
- BRL — Language for server-side Web applications
- Bubblegum — Watches files for changes via stat()
- Bug-buddy — GNOME bug-reporting utility
- Bugdar — Is a bug tracking system.
- BugSquish — Use the mouse to squish the bugs before they suck your blood
- BuildBot — Automates the compile/test cycle of software development
- BulkWatch — Takes action when an IP has exceeded its maximum settings
- bup — Sends keystrokes for collection by a sniffer or a syslogd server
- BusyBox — Tiny versions of many common utilities
- Bygfoot Football Manager — Small and simple graphical football (a.k.a. soccer) manager
- BYLD — Helps users build a mini distribution
- ByteHoard — A file transfer, storage, and mangement system.
- Cage — Replacement for 'chroot'
- calamaris — Generates statistics from log files from proxy cache servers
- Calcoo — Scientific calculator
- Calcurse — Text based PIM
- cals2tiff — convert .cal files (US NAVY CALS raster file * Type 1) into .tiff files (baseline TIFF bilevel images).
- Camera Picture Copier — A digical camera picture copier/renamer.
- CARE2X — A program that integrates different information systems of hospitals.
- Catase — Serves documents in response to queries
- Catdoc — Changes Word files to ASCII text
- Cat IMproved — Cat IMproved is an improved version of the UNIX program cat.
- Cats2procmailrc — Generates a .procmailrc file
- Cave — An ncurses ascii character animation viewer
- Ccache — Compiler cache
- Cce-interact — Online learning system
- ccForum — is a simple, easy to use message board written in PHP using MySQL.
- Ccvssh — Secure ext-to-pserver bridge for cvs
- Cdcd — Plays CDs
- Cdda2wav — Records audio tracks digitally into wav files
- cdrtools — Tools to master CDs
- CDS-PHP — CSD-PHP Control de service para empresas informáticas
- Cedar Backup — Backs up files on local and remote hosts to CD-R or CD-RW media
- ceegeye — a C++ library for Common Gateway Interface applications.
- Celebrat — Text-mode calendar application
- Cereal — Emulation framework for 8051-compatible CPUs and connected devices
- cervisia — Graphical frontend for CVS
- Cflow2vcg — Cflow to VCG converter
- CGI::Cache — Caches output of time-intensive CGI scripts
- CGI Calendar — CGI-based event calendar that does not need a database
- cgicc — C++ class library for writing CGI applications
- CGoban — Client program for the game of Go
- Championship Generator — A program that produces a list of all the meetings between a set of teams.
- Changedfiles — Framework for filesystem replication, security monitoring, and/or automatic file transformations
- ChangePassword — Change passwd, Samba, and Squid passwords.
- charities.cron — Cron job to automatically visit the Web sites of various charities
- Chart — Stock and commodity market charting
- Chbg — Manages the background of a desktop
- Checkaliases — Reads and monitors a sendmail alias file
- checker — Finds memory errors at runtime
- checksuite — Programs to help with daily sysadmin tasks
- CheckWebsite — Performance monitoring and uptime notification tool
- chemtool — Chemical structure editor
- Chess — Chess game
- ChessX — A chess database.
- choose — Computes permutations and "choose functions"
- Chrpath — Modifies the dynamic library load path
- Chupacabra — Administrative IRC bot
- Church — this module allows simple experimentation with the lambda calculus, first developed by Church.
- ChurchInfo — ChurchInfo is a web-based church database application. A database of members and families facilitates automation of many administrative activities.
- cim — Compiler for the programming language Simula
- Cinelerra — Advanced audio/video content creation system for GNU/Linux
- CinePaint — A deep painting and image retouching tool for film.
- Circus Linux — Bounce clowns into the air so they pop balloons
- Citadel — BBS program
- Cite CRM — Customer Relations Management Software For Computer Repair Industry
- CitrusDB — Is a customer database and billing software solution
- Cjukebox — Directory-based management system for audio files
- cko — Colors kernel messages in the BSD style
- ClearHealth — Medical practice management system and EMR
- CLEX — File manager
- ClickHeat — a visual heatmap of clicks on a HTML page.
- clisp — ANSI Common Lisp compiler, debugger, and interpreter
- ClusterSSH — Automatically sends text to multiple windows
- cms-bandits — The CMS - Bandits is a php system, with online html editor, search engine, rss reader, image gallery, comment system, webcrawler and much more
- CoaSim — Coalescence process simulator
- CoaSim-gui — GUI for the CoaSim coalescence process simulator
- COBOL for gcc — Project to produce a free COBOL compiler
- code-fu — is a flatfile pastebin written in PHP and HTML.
- Code Striker — Script to facilitate collaborative code reviews
- Coin — 3D graphics library whose API is based on the Open Inventor API
- coldstore — Persistent object store
- collectd — Collects system information and writes the results in an RRD-file
- Colorifer — Utilities that color the output of other processes
- colorsvn — A Subversion output colorizer.
- Comfigure — Wrapper to run configuration scripts
- Command Line Trash — command line interface to trash
- Compilercache — C and C++ compiler wrapper
- Conc — Serial console concentrator package
- Cone — Text-based email client
- confstore — Configuration backup utility
- cons — 'Make' replacement
- Console Othello — text othello
- ConvertFS — File system conversion utility
- convmv — Converts filenames, directories, and filesystems to a different encoding
- cook — Tool for constructing files
- cool3s — Smart snippet system
- Corkscrew — Small program for tunneling SSH through HTTP proxies
- CorneliOS — "Web Operating System"
- CPG — Specifies language grammars and computes, generates, and simulates the corresponding automatons
- cpuid — CPU identification utility
- Cream CRM — A customer relationship management system for media organizations.
- Createusers — Adds or removes users in bulk
- crip — Ripper/encoder/tagger tool
- CRM114 — Regex mutilator and filter
- cronolog — Web log rotation program
- Crossroads Load Balancer — Load balance utility for TCP
- Cryptkeeper — A system tray EncFS frontend.
- Cryptonit — Lets users encrypt/decrypt and sign/verify files with PKI certificates
- CryptoTools — Cryptographic-related applications that run from batch, console or GUI without installation
- CSBuddy — a counter-strike server log file monitor and administration tool.
- csCSSc — Compresses or pretty prints valid CSS code
- cssc — Free clone of SCCS
- csv2mysql — Converts CSV files to MySQL tables
- CUPS — Portable printing layer
- Current — Server implementation of RedHat's up2date tools
- cutmp3 — Command line MP3 editor
- cutter — Connection cutter for iptables-based firewalls
- cvs2cl — CVS-log-message-to-ChangeLog conversion script
- Cvsauth — Authentication daemon for the CVS pserver method
- Cvschk — Checks for new files and modifications to old files
- cvsd — CVS wrapper
- CVSGraph — Generates graphical representations of CVS revisions and branches
- Cvsplot — Analyzes the CVS history of a project
- CWirc — X-Chat IRC client plug-in to transmit Morse code
- Cxref — Produces documentation from C source code
- Cymbaline — Intelligent learning music player
- daemon — Turns other processes into daemons
- dailystrips — Utility to automatically download your favourite online comics.
- darcs — Version control system
- Darkstat — Network statistics gatherer
- Darwin2k — Robotics design and simulation program
- dat2dxf — dat2dxf is a program written in C to convert Selig formated airfoilcoordinates to dxf output.
- DataCaptureTool — This is a TCl/Tk package for getting data out of scientific plots (or from any other plot for that matter).
- Data Mining Template Library (DMTL) — A generic C++ based library for mining structured patterns.
- DataMonster — D&D command line management program
- DAViCal CalDAV Server — a server implementing the CalDAV protocol for shared workgroup calendaring.
- ddclient — Updates dynamic DNS entries
- Dead Souls — A MUD library that lets you make online text adventure games.
- Deb Creator — GTK wizard tool to build deb packages
- debfoster — Cleans up Debian packages
- DebLib — a simple module for Python that lets one look at the debian packages database.
- Debt Payoff — Calculates how long it takes to pay off credit cards
- Defendguin — GNU/Linux-themed Defender clone
- dejaGnu — Framework to test programs
- Deliantra Client — the client for a cooperative multiplayer RPG and adventure game, much similar in style (and setting) to nethack and moria.
- Deluge — a Bittorrent client written in Python/PyGTK
- Denemo — Graphical music notation program
- deplate — Converts documents in a Wiki-like markup to LaTeX, DocBook, HTML, or "HTML slides"
- Deroff — Removes roff and preprocessor constructs
- Desktop Data Manager — A clipboard manager and screenshot taking application.
- Devfsd — Manages entries in the Device Filesystem
- DForum — Web site discussion forum
- DHEX — Ncurses-based hex-editor
- dia2code — Makes code from a 'dia' diagram
- DiaCanvas2 — Diagramming widget
- dif — Differential intra-interchannel filtering of RGB .bmp images for enhancing lossless data compressibility.
- Diffutils — Finds differences between and among files
- DigiKam — an advanced digital photo management application for KDE.
- Dili — is a php script for listing directory contents.
- Dimnum — C++ library for storage and conversion of dimensionful values
- dirac — General-purpose video codec
- Disc-Cover — Produces covers for audio CDs
- Discord — a python module for converting dates from Gregorian to Discordian.
- Diskfree — Tracks and reports changes in file size
- diskWriggler — Benchmark tool for hard disk based storage throughput
- Dkimap — IMAP4 daemon
- dmi — Web photo album and image gallery
- Dnsmasq — Small DNS forwarder
- Dnuos — a tool for creating lists of music collections.
- doalarm — Run commands under system timers
- docarc — Web-based database for tracking electronic documents and BibTeX entries
- Doclifter — Translates n/t/g/roff documentation to DocBook XML markup
- DocMGR — A enterprise level document manager
- Docutils — a text processing system for processing plaintext documentation into formats such as HTML or LaTeX.
- Double Choco Latte — System for tracking bugs, changes, enhancements, and requests for software
- drill — Debugging/query tool for DNSSEC
- Drip — DVD to divx conversion application
- DrQueue — Distributed rendering queue
- DRT — Design recovery tool for interactive graphical applications
- druid — Tool to create graphical databases
- Drunkifier — Translates text into drunken text.
- DsaLib — a module for Python that retrieves the details for Debian security alerts.
- Dtach — a program that emulates the detach feature of screen.
- DULog — New log notifier and parser
- Duplicate Music Matcher — Duplicate Music Matcher is a application to quickly find duplicate MP3, OGG, and FLAC files based on letter matching.
- dupmerge — Reclaims disk space from redundant files
- Dupseek — Finds and removes duplicate files
- Duty Roaster — Duty Roaster is a program for managing and generating duty rotas
- dvbcut — A GUI application for cutting parts out of MPEG videos.
- dvd::rip — A full featured DVD copy program written in Perl
- DVDStyler — A DVD authoring system
- dvipng — PNG graphics from TeX DVI files
- dvupicts — A console based picure management program.
- Dynamic Probes — Debugger
- E — Automated theorem prover
- e107 — Manage your PHP/MySQL website
- Easy Benchmarking Suite — Data collection, analysis, and plotting of Web site benchmark timings.
- EasyChains — GUI for a console firewall script
- easyPOS — easyPOS is a GTK+ cash register written in C
- Easy Tag and Rename — is for putting tags and renaming music files.
- Eboard — Chess board interface for ICS
- eboxy — A GUI interface system for entertainment PCs.
- Ecasound — a software package designed for multitrack audio processing.
- Echoping — Testing tool for TCP servers
- ECNCheck — Tests for ECN support and RFC-violating refusal
- EDMA — Modular development environment
- efax — Sends and receives faxes
- Eject — Puts removable media under software control
- Elca — Real-time calculator
- Electric Fence — Memory debugger
- Electronic Medical Imaging System — Medical information system
- elf — ELF object file header analyzer
- ELF statifier — Combines multiple executable files into one
- Elgg — social engine which powers all kinds of web social environments.
- eli — Compiler construction kit
- Elib — Library of Emacs LISP functions
- ELinks — Enhanced version of the 'links' text browser
- Eliot — Eliot is a free, portable program for playing Scrabble (tm).
- Elmer — Elmer is a computational tool for multi-physics problems.
- Elysium Download — Download manager for GNOME
- Emacs Common Lisp — Common Lisp implementation for Emacs
- Emacs Wiki — Wiki system for Emacs
- EMC — EMC is software that implements real-time control of equipment such as machine tools, robots, and coordinate measuring machines.
- Emdros — Database engine for annotated or analyzed text
- EMirror — Ftp mirror script
- Empire — War game
- EmPy — Embeds Python expressions and statements in template text
- emrem — Email reminder scripts
- enca — Detects and converts character set of text files
- Endeavour — File browser/File manager
- Enemies of Carlotta — Small, simple mailing list manager
- ENodes — Web development and publishing framework
- enotes — Emacs script to handle appointments
- EnterTrack — Artifact tracking and management system.
- Entombed! — A one- or two-player maze crawl
- Epkg — Package manager for the Encap package management system
- Epylog — New log notifier and parser
- Eqe — LaTeX equation editor
- EsounD — Audio file player and sound daemon
- Etherape — Network monitor
- etherboot — Makes boot ROMS
- Euchre — Spades or bridge-like card game
- Eukleides — Euclidean geometry drawing language
- Euterpe — Media archive searching applet
- EverCrack — Cryptanalysis engine
- evilvte — lightweight terminal emulator
- Evolution RSS Reader Plugin — An RSS reader plugin for Evolution.
- E-xmms — Enlightenment applet for XMMS
- Extended Operating System Loader — Graphical boot loader
- extendedPDF — Convert OpenOffice documents to PDF documents
- eyeOS — A Web desktop environment.
- eZ publish — Web content management system and development framework
- EZRO — System for managing Web-based content
- Ezstream — A flexible Icecast source client with support for external de-/encoders.
- f2w helpdesk — Web-based helpdesk package
- FAI — an automated installation tool to install or deploy Debian GNU/Linux and other distributions on a bunch of different hosts or a cluster.
- Fake — Activates backup servers on a LAN
- FAKT — is a forums and guides system.
- fallback-reboot — Tool for remotely rebooting a computer
- Fast rendering toolkit — Toolkit for 3D animations using low-end machines
- fauxident.py — Naive ident server
- Fcron — Schedules periodic commands
- FeedStater — an RSS/Atom feed statistics tool.
- Fenris — Tools for code debugging and examining possibly hostile applications
- ferm — Tool to set up and maintain firewalls
- Ferriscreate — Creates new objects in the filesystem
- feta — Frontend to 'dpkg'
- fetchtowebmail — is a Python script that downloads emails from the webmail interface of the German ISP T-Online.
- Ffproxy — Filtering HTTP proxy server
- fftw — Subroutine library for computing the Discrete Fourier Transform
- Fianchetto — Free swiss tournament manager for chess tournaments
- fig2ps — Converts xfig files to PS or PDF
- Figaro's Password Manager — A GNOME app to securely store and encrypt passwords.
- FileRepair — Compares and modifies files across a network
- File Ripper — A tool for extracting files from disk images.
- FileRoller — Archive manager for Gnome
- fileschanged — A command line utility for monitoring files for alterations.
- FileTools — Multiplatform application for working with checksum files
- fileutils — Tools for file operations
- Filters — Converts proprietary formats to XML-based formats
- Find Duplicate Music Files (fdmf) — detects music files that contain the same music, even if the files are differently named, and are in different formats.
- FireDNS — Library for handling asynchronous DNS queries
- Fireflier — Firewall tool built on top of the iptables framework
- FireMake — Creates makefiles
- Firestorm — Network intrusion detection system
- FireString — Facilitates C string handling
- fische — Provides standalone sound visualisation for GNU/Linux
- fish — Interactive, user-friendly shell
- Fityk — Non-linear curve fitting and data analysis
- flac2ogg — Converts FLAC or shorten files to Ogg Vorbis
- FlacFile — Attaches files to FLAC files using the metadata section
- Flawfinder — Analyzes code for security risks
- Flc — Shows the FILE_ID.DIZ and ID3 tag of every file
- fldiff — Graphical diff program
- Flexbackup — Backup tool for both local and remote files
- Flight Gear — Flight simulation software
- Flock — File locking utility
- Flumotion — Streaming media server
- FlyBird — Is a file manager
- Fnord httpd — Small HTTP server
- Fontlinge — Font management and organisation tool for TrueType and PostScript fonts
- fontutils — Converts between font formats and creates fonts
- FooBillard — Billiards simulation
- Fosite — 2D hydrodynamical simulation program
- Fotox — Photo contrast editing
- fplan — Free flight plan software
- FreeCAD — Computer Aided Drawing
- FreeMED — A Web-based medical record (EMR) and medical practice management system.
- FreeMED — Web-based medical records and patient management system
- freenet — Filesharing program
- Free Pascal Compiler — Free Pascal compiler
- Free S/WAN — IPSEC and IKE for GNU/Linux systems
- Frocor — A sound-graphics installation.
- Frontier — Geometric constraint solver
- Frost — C++ compiler wrapper
- FrozenBubble — Animated penguin game
- fs2xml — a PHP script that creates an XML representation of a file system hierarchy.
- fsgrep — Search for matches in files in a directory structure.
- F-Spot — personal photo manager
- Ftpcopy — Copies files or directory trees
- FTPmond — Automatically tells a mailing list about new files
- Funct — Stores and modifies mathematical functions
- FunctionCheck — Profile generator for C/C++ programs
- FunkLoad — A functional and load tester for Web applications.
- fuse — Helps userspace programs export a virtual filesystem to the kernel
- fwknop — Adds an additional layer of security to services such as SSH
- GAA Argument Analyzer — Analyzes command line arguments
- Gaby — Small personal database manager
- Gajim — Jabber client written in PyGTK
- Galaxium Messenger — GNOME Instant Messenger
- Gale — Instant messaging software
- galleryforge — creates static HTML galleries by recursing through a hierarchy of directories containing images.
- Gamazons — Board game
- Game Launcher — A front end for game emulators
- Gameping — Monitors games servers
- GAP — GAP is a system for computational discrete algebra, with particular emphasis on Computational Group Theory.
- Garnome — Build utility for the Gnome desktop
- gatO — Interface to the UNIX command 'at'
- Gbiff2 — Displays headers when new mail has arrived
- gbuilder — a C/C++ IDE for Gnome.
- Gcover — CD covers for GNOME.
- G-Cows — Facilitates Web site creation
- Gcron — Replacement for Vixie cron
- GCronTime — Manages 'cron' function
- Gdbm — Replacement for the 'dbm' and 'ndbm' libraries
- GDB-Machine Interface library — implements the GDB-MI (GNU DeBugger/Machine Interface) protocol as a library.
- gDesklets — Provides framework for desktop applets.
- gdictcn — a gtk+ chinese dictionary online.
- gdivelog — A SCUBA dive logging application for GNOME.
- GdMap — A tool to display disk space using treemaps.
- Gecko Multimedia System — A replacement for your VCR, DVD, MP3, and CD player.
- Gedafe — Web front end for databases
- gEDA-gaf — Tools for electronic circuit design
- gElemental — A periodic table viewer.
- Gemdropx — Pull gems down and throw them back to make matches
- GENDIST — Creates individual distributions
- generictionary — A generic, modular, and interactive dictionary.
- Genigma — Free 'enigma' emulation
- GENtle — Bioinformatics software for everyday molecular biology tasks
- Gequel — GTK-based frontend for MySQL
- GeSHi — A generic syntax highlighter for PHP.
- Getargs — Python command line parser
- getID3 — Extracts useful information from multimedia files
- Getmail — Simpler replacement for fetchmail
- gfeed — RSS feed reader for Gtk+ 2.0
- gforth — Free implementation of the ANS Forth language
- gFTP — Multithreaded FTP client
- Ghemical — Molecular modelling application
- Ghex — Binary file editor
- Ghost for Linux — A hard disk and partition imaging/cloning tool using compression and FTP.
- GIFT — Content based image retrieval system
- Give/Take — Filesharing application
- Gjots — Lets you make notes in tree form
- GKrellM — System monitor package
- Glame — Sound editor
- gld — Greylisting server for Postfix
- GLE — C functions that draw extruded surfaces
- gLife — Evolutionary simulation game
- Glom — GUI for PostgreSQL tables
- glTail — Real-time visualization of server traffic, events and statistics with SSH and OpenGL
- gman — GUI for the man system
- gmane — Converts mailing lists to newsgroups and back
- Gmessage — Replacement for xmessage
- Gmrun — Run program utility
- GMT — Geographic mapping tools that produce EPS illustrations
- Gnarwl — Autoresponder
- GNAT — A complete Ada95 compilation system
- Gneuro — Euro converter
- Gnomba — GUI Samba browser
- GNOME BluePhone — a GNOME applet to allow you to remotely administer a bluetooth-enabled mobile phone from your desktop.
- Gnome Character Map — Selects high ASCII characters
- Gnome Chinese Checkers — a networked implementation of the Chinese Checkers board game, supporting upto 6 players.
- Gnomedb — Framework for developing database applications
- GNOME Debian Package Manager — A graphical manager for Debian packages.
- Gnome Flow — Calculates and visualizes steady-state fluid flows
- Gnome Icon Packaging utility — Gnome icon theme creation software.
- Gnome ir Monitor — a GNOME applet for monitoring IrDA devices.
- GnomeLDAP — Administrative tool for LDAP directories
- Gnome Multires — an applet for the Gnome 2 panel which allows changing of desktop resolution and refresh rate.
- Gnomeradio — FM radio tuner
- Gnome Toaster — CD creation suite
- gnome transcript — SQL database client
- Gnonlin — A non-linear editing library built on top of GStreamer.
- gnormalize — A ripper, encoder, audio converter, MetaInfo editor, and front end to normalize.
- Gnostic — a rule-based task execution system.
- gnu-arch — Revision control system
- GnuboyCE — Gameboy emulator
- GNUe Common Library — Python library for database abstraction, RPC abstraction, and lots of other things.
- GNUe Forms — Multi-platform user interface generator for database applications with support for various database backends.
- GNU Gatekeeper — A free H.323 gatekeeper.
- GNU ghostscript — Interpreter for the Postscript and PDF graphics languages
- GNU go — Plays the game of Go
- gnu Hosting Helper — A web hosting management package.
- gnuit — Tools for simple, daily file and system management tasks
- GnuLedger — Income and expense tracker
- GNU Library Management System — management software developed using PHP and PostgreSQL to automate the different activities carried out in the library.
- GNU/Linux Library Dependency Checker — checks for broken library dependencies in GNU/Linux.
- Gnu Math — Unfinished software to simplify programming for scientific applications
- GNUMed — Software for a paperless medical practice
- gNumExp — Gui frontend to to the NumExp language
- GNU Pascal — Pascal compiler of the GNU Project
- GNUscape navigator — Web browser that runs under GNU Emacs
- GNU SQL — Database management system
- GNU tar — Creates tar archives
- Gnutrition — Nutrition analysis software
- GNU trueprint — Prints source code to PostScript printers
- GNUTS — GUI toolkit abstraction library
- GoldenPod — A podcast aggregator
- Googleware — Automatically queries Google
- Googlism — command line and Python module access to googlism.com
- GooseQuill — Software for managing and marketing all types of writing projects
- Gotmail — A utility to non-interactively download email from a Hotmail account.
- g-page — Sends text messages to pagers or SMS enabled PCS phones
- Gpasman — Password manager
- Gperf — Generates a hash function
- Gphoton — 3d modeller with integrated ray tracer
- GPL Arcade Volleyball — A multi-platform Arcade Volleyball clone
- GPLIGC — Analyzes IGC flight data from GNSS flight data recorders used by glider pilots
- gPodder — A podcast receiver/catcher for Gnome/GTK+.
- GPRename — GUI batch file renamer
- gprolog — Prolog compiler
- gPS — Reports process status
- GPS — Simulates particle behavior
- Gpsdrive — Map-based navigation system
- Gqview — Image browser
- grabinfo — Display metrics about a server using XML
- Grace — 2D plotting tool
- Grafist — Bandwidth utilization viewer
- Graft — Package management utility
- grap — Language for typesetting graphs
- GraphThing — Tool for creating, manipulating, and studying graphs
- GRASS (Geographic Resources Analysis Support System) — Geographic information system
- Gravityd — Graphical display of network testing tools
- GreatCharts — A commandline tool that generates stock charts.
- Grepmail — Searches for emails in normal or compressed mailboxes
- Gretl — Software for econometric analysis
- Gretools — Vocabulary building tool for Gnome
- Griffith — is a media collection manager.
- Gringotts — Securely saves sensitive data
- Grisbi — A personal finance manager.
- groff — Document formatting system
- Gromit — System configuration tool
- Group-Office — A Web-based groupware office suite.
- Grsecurity — Security system that implements a detection/prevention/containment strategy
- Grsync — A GTK GUI for rsync
- GSAMBAD — GSAMBAD is an easy to use GTK+ frontend for the SAMBA file and print server.
- Gscope: A Software Oscilloscope Library — a software oscilloscope library.
- GSKey — Generates MD5 sums
- Gsmbscanner — NetBIOS scanner program
- gstat — Geostatistical modelling, simulation, and prediction
- gt5 — A text mode utility to determine disk usage
- gtapecalc — Calculator that displays a paper tape
- GtkAda — Ada 95 graphical toolkit
- gtkdiff — Graphical diff tool
- GtkExtra-- — C++ wrappers for GtkExtra
- GtkHTML — HTML rendering/editing library
- GtkLife — Implementation of Conway's Game of Life
- Gtk-nocker — TCP security port scanner
- GtkOL-LDAP — Is a client GUI designed to manage OpenLDAP directories.
- GtkPSproc — Graphical frontend for 'psutils'
- GtkSpell — Spellchecker for GTK's TextView widget
- GTS — Functions for 3D surfaces meshed with interconnected triangles
- gTweakUI — A collection of simple dialogues as a front end to GConf.
- GTybalt — Computer algebra system
- Guarddog — Firewall generation/management utility for KDE 2
- Gujin — Graphic bootloader, kernel loader, floppy simulator on HD, FD, and CDROM
- gv4l — Video4Linux frontend for 'transcode'
- Gwenview — Image viewer for KDE
- Gwork — Tracks the work a company does and/or the products it sells
- Gxmlviewer — XML viewer for Gnome
- Gyach Enhanced — a feature-rich, improved version of the original Gyach voice client chat for Yahoo!
- Gzip_x86 — 'gzip' distribution tuned for faster decompressing
- Hachoir project- hachoir core — a Python library used to represent a binary file as a tree of Python objects.
- Hachoir project- hachoir metadata — a program to extract metadata using Hachoir library.
- Hachoir project- hachoir parser — a package of the most common file format parsers written using hachoir-core.
- Hachoir project- hachoir regex — a Python library for regular expression (regex or regexp) manupulation.
- Hachoir project- hachoir subfile — a tool based on hachoir-parser to find subfiles in any binary stream.
- Hachoir project- hachoir urwid — a binary file explorer based on Hachoir library for parsing files.
- Hachoir project- hachoir wx — a wxWidgets-based program that provides a UI to the hachoir binary parser core.
- Hammerhead — A Web stress testing tool.
- Handbrake — DVD Ripper and Audio/Video Converter
- Hanzim — Visual, interactive Chinese character and word dictionary
- HardInfo — System profiler and benchmark tool
- Hardware Lister (lshw) — Is a small tool to provide detailed information on the hardware configuration of the machine.
- Harmonics — Harmonics files for Xtide
- HarvestMan — Multithreaded offline browser
- Hdup — Filesystem backup tool
- Heartbeat — Monitors hosts and provides high-availability failover services
- Hermes Antispam Proxy — is a generic, transparent, multi-platform anti-spam SMTP proxy.
- Hexedit — Displays, edits, and searches in ASCII and hexadecimal
- hilite — Highlights the output of executed commands
- hindent — HTML formatter
- Hitchhiker's Guide to the Internet — A German-speaking introduction to the technical aspects of the Internet.
- Hobbit — Scheme to C compiler
- Holocrunchies — Computational holography program
- Homebrew Decompiler — decompiles Java class files
- hOpla — Link between XML files and SQL databases
- Horgand — Graphical FM real time organ
- Hot Potato Online — Bomb the opposition with explosive potatoes in this multiplayer arena sport game.
- Hotwire — Hotwire is intended to replace the interactive command execution portion of a typical Unix shell.
- Hping — Sends custom packets and displays target replies
- hsclock — Multi-time zone clock
- ht://Dig — Internet search engine software
- Html2fo — Converts from html to xml:fo formats
- html2ps/html2pdf — PHP version of html2ps and html2pdf, the popular Perl packages of the same name.
- HTML Code Convert — Helps convert HTML code into various other languages
- HTML Family Tree Generator — Creates view of a family tree
- Htmlrecode — Modifies HTML files
- HTTP Anti Virus Proxy — A proxy with a ClamAV anti-virus scanner.
- Httptunnel — Creates a data path in HTTP requests
- HuegoGallery — A dynamic photo gallery written in php
- HuffmanView — Visualizes the Huffman tree algorithm.
- Hybrid Logics Model Checker — C implementation of model checking algorithms for Hybrid Logics
- Hydrogen — Drum machine/sequencer
- iCam2 — video4linux/imlib2-based application for handling a webcam
- Icarus Verilog — a Verilog simulation and synthesis tool.
- Icecast — Streaming media server based on the MP3 audio code
- IcedTea — free JVM
- IceMe — Graphical menu and shortcut editor for the Ice window manager
- Iceutils — A suite of command line tools designed to make creating a game world easy.
- ID3.py — ID3 MP3 info tag manipulation in Python
- Ignorance — Content filtering plugin for Gaim
- Ikkes Volume Manager — a daemon to automount cd-roms, play audio cds or dvds.
- Image Fusion Library — portable library for image fusion.
- imap_migrate — Tools for IMAP to IMAP server migration
- imapsync — IMAP mailbox synchronization tool
- IMDbPyKit — A web interface to the IMDb data retrieved through IMDbPy.
- ImgSvr — Web server designed for image publishing
- Imgv — Image viewer
- ImLib3D — Library and visualization system for 3D image processing
- ImpressCMS — a community developed Content Management System for easily building and maintaining a dynamic web site.
- incron — An inotify cron system.
- Indexed PDF Creator — Creates indexed PDF documents from text files
- indexpage.pl — Generates index pages and thumbnails for online image collections
- info2html — Converts GNU .info files to HTML
- info_to_html — Enhanced version of info2html
- ink — A command line tool for displaying the ink level.
- Inkscape — SVG editor
- inlook — is a e-mail client with an address book.
- installdb — Records and stores info about installs on a system
- install-log — Package management tool
- Internet radio protocol — Playlist manager and streamer for Internet radio stations
- Intrepid — a simple network load balancing system.
- IPFC — Manages security modules
- iplog — is a TCP/IP traffic logger.
- ipsc — IP subnet calculator
- IP Sentinel — Prevents unauthorized usage of IP addresses
- IPStream — Crossplatform libraries for working with TCP/IP protocols
- iptables — Packet filtering framework in the Linux kernel
- IP Traf — Generates network statistics
- IrcGraph — Visualizes IRC traffic
- IRM — Asset tracking system for IT depts. and helpdesks
- irsleeptimer — implements the Sleep Timer function for Lirc.
- IrssiBot — IRC bot
- Isabella — Gothic font
- ISO Master — A graphical editor for ISO images.
- ispbs — Management and billing system for ISP, hosting, and VoIP providers
- ISP-Check — Tests the connectivity of your ISP
- Issue-Tracker — Support issue tracking system
- IT++ — C++ library of mathematical, signal processing, speech processing, and communications classes and functions.
- iWatch — A real-time filesystem monitoring program.
- Jacquemate — Turn-based Web chess system
- jaffm — Lightweight wxWindows file manager
- Java Tetris — Tetris game
- Jbrout — A modular photo manager
- Jebi — A program to record AM/FM radio and publish it to a podcast feed.
- jel — Compiler for simple expressions into Java byte code
- JGloss — Adds reading and translations annotations to Japanese text
- JILetters — Alphabet-learning tool for children
- JitterBug — Web-based bug-tracking tool
- jMax — Programming environment for real-time audio
- Joy Mouse — converts incoming joystick data to mouse data.
- jp2a — Converts JPEG images to ASCII characters
- Jpg2html — Generates thumbnails and the corresponding HTML
- jrnull — Time tracker
- JRuby — Java version of the Ruby interpreter
- JSAM — JSON Storage Access Methods is a library for storage and retrieval of JavaScript Object Notation (JSON) encoded objects.
- Jumpnbump — Cute multiplayer platform game with bunnies
- Jungle Monkey — Distributed file sharing program
- Justniffer — a tcp packet sniffer.
- k9copy — DVD9 to DVD5 copy
- Kadet — Server
- Kaffe — Complete, PersonalJava 1.1 compliant Java environment
- Kalkulon — A programmable expression calculator for programmers
- Kanatest — Kanatest is a simple hiragana and katakana drill tool.
- Karpion Anti-Phishing Toolbar — an anti-phishing toolbar for the Konqueror web browser.
- kBag — Synchronizes your documents between one computer and another.
- kbarcode — A barcode and label printing application for KDE 3.
- Kbiff — Mail notification utility
- KCachegrind — Profiling Visualization
- kcd — Directory change utility
- Kci — Simulates chemical reactions
- KDirStat — Displays disk usage information for directory trees
- Kernin — Script for kernel install
- Kexchange — A currency converter which gets the latest rates from the Internet.
- Keychain — Key management front-end for OpenSSH's ssh-agent
- Keystone — Digital library suite
- KForge — A collaborative development environment for software or knowledge.
- KHdRecord — Audio recorder that writes directly to the hard disk
- Kid3 — An efficient tagger for MP3, Ogg/Vorbis, and FLAC files.
- Kile — LaTeX source code editor
- Kleandisk — Removes extraneous files from your hard disk
- Klear — A KDE-based DVB TV viewer and hard disk recorder for GNU/Linux.
- KLibido — KDE Usenet file grabber
- Klicklack — A plugin-based dictionary application for KDE.
- Klimt — a 3D library with a similiar API to that of OpenGL, targeted for mobile devices.
- KLinkStatus — A link validity checker.
- KLog — A Ham radio logging program.
- KLone — Embeddable web server and SDK to write dynamic HTML pages using C/C++
- KMess — An MSN Messenger-compatible chat program for KDE.
- KMyMoney — A KDE personal finance program.
- Knettools — Network testing tools
- KNewMail — Checks incoming mail and displays headers
- knowde — Creates a hierarchical tree structure of knowledge cards
- KnowIt — a simple tool for managing rich-text notes in a tree-like hierarchy.
- Kodos — Tool for working with regular expressions
- Kommuni-K — Gathers multiple electronic communications systems together in one application
- KPhotoAlbum — A tool for indexing/browsing/searching large numbers of images and/or videos.
- KSEG — Euclidean geometry simulator
- KSlackCheck — Syncs, monitors, and displays changelogs and updates
- KSS (Kinetic Style Sheets) framework — write rich Ajax applications without having to code Javascript.
- Kuickshow — Image viewer
- kvpnc — A KDE frontend for various VPN clients.
- Kwaff — a pretty tool to convert Kwaff format document into XML document, and also convert XML into Kwaff.
- kwavencoder — Generates Ogg, MP3, or FLAC out of a WAV file
- KWebWatch — Monitors Web pages looking for changes
- L3D - A Linux 3D Engine-Library — a 3D library for developing OpenGL applications under GNU/Linux.
- Laconica — a microblogging platform.
- Larbin — Web crawler
- LastBASH — LastBASH is a console/terminal based player for Last.fm written in Bash.
- Latex4jed — Enhanced LaTeX mode for the Jed editor
- Launch.app — Executes applications
- Launchtool — Launches applications
- LavaPS — Interactive process-tracking program
- Lavengro — Vocabulary test engine
- LCDnetstat — Displays incoming TCP/IP connections
- lcdtest — A monitor test pattern utility.
- Ldapdiff — Compares and adjusts ldif files with a running LDAP server
- Ldapvi — Lets users update LDAP entries with a text editor
- Leafpad — Simple GTK+ based text editor
- Lesspipe.sh — Input filter for 'less'
- lfwmail — Lightweight Webmail program
- libcdio — Encapsulates CD-ROM reading and control
- Libcisco — Automates configuration management for Cisco network equipment
- LibData — Library web management system
- libds — Library that supports simple networking, threads, and data structures
- Libdvdcss — Library for transparent DVD device access with CSS on-the-fly decryption
- Libferris — Virtual filesystem
- Libgaudio — C/C++ library to incorporate sound and sound effects into games
- Libgenrics — Is a library to provide object services
- Libgmail — Binding for Google's Gmail service, includes FTP, POP, SMTP & archive functions.
- libGringotts — Thread-safe library that encapsulates data in an encrypted file
- Libgtkol — Is a GTK C++ Object Layer
- libhid — provides a generic and flexible way to access and interact with USB HID devices.
- LibHTTPD — Adds basic Web server capabilities to an application or embedded device
- Libnids - NIDS E-component library — NIDS E-component library.
- libnomadii — library for the Nomad II GNU/Linux Driver Suite.
- liborigin — A library for reading OriginLab OPJ project files.
- libphish — a library which interacts with the Open Phishing Database.
- libradix — C library for implementing radix sort.
- Library to create PostScript files — a C-library for generating multi page PostScript documents.
- libslack — Library of Unix/C programming utilities
- libsrs2 — Library for email envelope send address rewriting
- LibStroke — Stroke translation library
- libtool — Generic library support script
- libxmi — Library for rasterizing 2-D vector graphics
- libytnef — library for the running of ytnef, aka, Yerase's TNEF Stream Reader.
- Lich — Playlist creator/manager.
- licq-osd — Displays new ICQ messages onscreen
- Lilypond — Music typesetter
- 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
- LinCity — City/country development simulation game
- LinCVS — Graphical CVS frontend
- LineControl Server — Remotely controls server connections
- Linux (BLOB free version) — UNIX kernel often used with the GNU system
- LinuxLive — Set of scripts for creating a live CD
- LinuxTaRT — Signature generator
- Linux Vacation — Automatic mail-answering program
- Little Wizard — A development environment for children.
- LiVES — Video editing system
- LiveSync — Synchronizes data between two systems
- 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.
- lndir — Creates a shadow directory of symbolic links to another directory tree
- Lodju — Lodju creates indexes of digital images
- Logintop10 — Creates "Top 10" lists from wtmp statistics
- LongPlayer — MP3 player for listening to large collections or long periods of time
- Looking Glass — A looking glass written as a CGI script
- Loris — a library for sound analysis, synthesis, and morphing.
- lpe — Small programminng editor
- lpr-bash — Replacement for the "lpr" command
- LPRng — Extended print spooler system
- LSAT — Security auditing tool
- Lsystem — an implementation of Lindenmayer systems (also called L-systems, substitution systems).
- LTSP — Linux Terminal Server Project
- LUCAS — LDAP monitoring framework
- Luma — Accesses and manages data stored on LDAP servers
- Lurker — Mailing list archiver
- Lustre — Storage and filesystem architecture for very large clusters
- Lutel Firewall — Firewall and NAT/masquerade router for home networks or multiple subnet applications
- Lynx — Text mode browser
- Lyricue — Edit/displays song lyrics on a screen or projector
- LyxDogs — Mail merge program
- Mad Bomber — Uses buckets to catch falling bombs
- MagicStats — Web server log analysis tool
- Mah-Jong — Mah-Jong game, graphical client, and computer player
- Mail2clf — Generates a CLF file from email
- mail2thread — Finds and outputs mail threads
- Mail-bounce — Returns customized email to the sender
- Mailgraph — Mail statistics RRDtool frontend
- Mail::Mbox::MessageParser — Basic but very fast mbox parser
- Majentis — Conflict resolution tool for CVS
- makefaq — Automatically creates a FAQ
- Mambo — Content management tool
- Man2web — Converts man pages to HTML
- Man-db — Reference manual page database and browser
- Manhattan Virtual Classroom — Delivers courses via the Web
- Mantis — A PHP-based bug tracking package.
- Mantra — A centralized, Web-based newsreader.
- Manyapad — Text editor
- Mapuche — MApuche, The Chilean PHP CMS.
- Margana — Anagrammer
- mariabasic — this is a simplified basic syntax interpreter aimed for pdas
- MariaDB — a backward compatible, drop-in replacement branch of the MySQL® Database Server.
- Mass — Project to develop a semi-2D game without using bitmaps
- MathPlanner — Mathematical design and publishing tool
- Matjito — Library for fast math expression evaluation
- maude — High-performance multiparadigm language based on rewriting logic.
- Mauve — Unfinished free test suite for the Java class libraries
- maverik — Virtual reality micro kernel
- Maxemum TV-Guide — A TV guide for KDE.
- mboxstats — Creates top 10 lists of your email
- Mbuffer — Enhanced version of buffer
- MC — Converts text documents into a vector space model
- mcl — MUD client for *nix
- Meanwhile — an open implementation of the Lotus Sametime client protocol.
- MedusWiki — a Python Wiki engine intended to be used as a personal knowledge management system.
- Meeting Room Booking System — Multiple site meeting room bookings.
- Meld — GNOME 2 diff and merge tool
- Melys — a Midi sequencer for ALSA.
- MemberDB - A Membership Database — a membership database application.
- Memo — Reminder application
- Memtest86 — Memory test for x86 computers
- memtester — Tests a computer's memory subsystem
- Menstruation Calendar — Tracks menstrual cycles
- Mercurial — A fast distributed SCM.
- Mergelog — Merges and sorts HTTP log files
- Mesk — A GUI music player application.
- Meta-CVS — Version control system built around CVS
- mfg — Makefile generator
- mgetty+sendfax — contains an intelligent getty for allowing logins over a serial line (such as through a modem) and receiving incoming faxes.
- mharc — Scripts for generating and managing Web-based mail archives
- MH-E — Emacs interface to the MH mail system
- mhttpd — a C++ implementation of a basic HTTP server.
- Microbrew Microsieve — Spam filter for USENET
- Microscopic Window Manager — Minimalist window manager
- Midnight Commander — Unix file manager
- Mifluz — Full text inverted index query library
- Mig — Interface generator for the Hurd
- Migrate Data — helps you move from one database structure to another, for example, migrating a PostNuke web site to WordPress.
- migrationtool — Lets you migrate your email from one IMAP server to another
- Milter-Virus — Wrapper for virus scanners
- MIME-tool — Constructs MIME encoded messages with file attachments
- Mini-CMS — a simple Content Management System.
- Minimum Profit — A programmer's text editor.
- minised — fast, small implementation of 'sed'
- minit — A smaller version of 'init'
- Mioga — Intranet groupware application
- Mirror — Turns your entire display black
- MirrorMagic — Game where you shoot around obstacles to collect energy using your beam
- MisterHouse — Home automation with Perl.
- Mkautosmb — Makes the local SMB network browsable
- Mkcgi — Helps generate form processing CGI scripts
- moap — Is a swiss army knife for project maintainers and developers.
- MoB — Realtime multimedia manipulation environment
- MODEL — Analyzes and simulates rate equations
- Mod_Survey — Displays and handles Web questionnaires
- modula-2 — Compiler for modula-2
- moftpd — FTP server
- molasses — Sticky notes app
- MONA — a tool that translates formulas to finite-state automata.
- Mon.cgi — CGI interface for checking the status of a 'mon' service
- Mondo Health Monitor — A system health monitoring daemon based on lm_sensors.
- Monit — Utility that monitors daemons or similar programs
- Mono — implementation of the various ECMA and .NET
- Moodle — System for producing educational course Web sites
- Moodss — Modular System Monitoring Software
- Moonlight3D — 3D modeller
- Morsetrainer — Program for learning Morse code
- Motor — Text mode IDE
- move — Moves unwanted file(s) to trash.
- mp3cd — Burns MP3, OGG, and WAV files to audio CD
- mp3mover.pl — Renames audio files so they conform to a set scheme
- mp3riot — Directory search utility
- mp3stat — Compiles information about your mp3 usage
- MP3tm — Helps you to tag all your MP3s and set unique names.
- MP4Info — is a library providing read (and, someday, write) access to MP4 tags.
- mpop — A POP3 client
- mptris — Tic-tac-toe game
- Mrbs — Meeting room booking system
- MRTG — Monitors traffic load on network links
- MrVoice — Perl/Tk front-end for an MP3 database
- msredird — Serial port redirector
- MT2 Thumbnailer — Generates HTML photo albums
- Mtools — Lets Unix systems work with DOS files
- Mtr — Network diagnostic tool
- MTX — Controls tape drives and autoloaders
- MUltihost SSH Wrapper — Broadcasts commands over SSH to multiple hosts.
- Multiplication Station — Learn to add, subtract and multiply
- MultiSync — Synchronizes PIM data between devices
- Multitail — Tail on multiple windows with a ncurses interface
- Multitalk — An interactive presentation program.
- Multiuser Address Management System/Book — Web-based address system/book
- Mumbles — Is a Dbus based notification system
- Munin — Gathers, graphs, and displays information
- MuSE Streamer — Mixing, encoding, and network streaming sound tool
- Music Manager — A Konqueror plugin for management of audio files (MP3, Ogg, etc.).
- mybashburn — it can burn data cds/dvds and create mp3/ogg/flac
- My Blog — A blog that aims to be simple to use, with many advanced and unique features.
- MyCMS — Internet publishing system
- MyDNS — Free DNS server designed for use with MySQL
- myDVDs — Graphical DVD inventory database
- myGifts — Wish list and gift registry management software
- My Handy Restaurant — Software for running a full-service restaurant
- MyNews — Script to scan websites
- mynews-www — MyNews web interface
- MyPaint — A quick and easy paint program like the GIMP
- My Photo Gallery — Web-based photo gallery that also supports non-image filetypes
- myphp — Web based Personal Information Manager (PIM)
- MyPos — A simple Web-based administration tool for postfix.
- My Python SVN Stats — simple and easy to use Subversion statistics generator written in Python.
- MyRPM — A script to create an RPM package from a list of files.
- MySAR — A dynamic web-based squid log analysis system
- mysql_client — MySQL client interface that supports multiple operating systems and languages
- nabou — Monitors file changes using MD5 checksums
- namefix.pl — Simplifies formatting the file names of media files
- Nanoblogger — Simple blogger
- Natural Language Toolkit — Toolkit for writing programs that process natural language
- Nbook — Guestbook script
- nbtstat.pl — Free implementation of the 'nbtstat' utility
- NeDNS — Multilingual domain system
- neo_my2pg — Python script for migration from mysql to postgresql.
- netcat6 — Reads/writes data across network connections, with IPv6 support
- net-check — Monitors Internet connectivity
- Netfilter2html — Uses GAWK to process netfilter logs
- NetPBM — Converts graphics formats
- NetSPOC — is a Network Security POlicy Compiler.
- Netstat-nat — Displays NAT connections
- Netsukuku — A P2P network system
- netwag — Graphical network testing toolbox
- NetworkManager — Program to provide a persistent network connection
- Network Monitoring Tool — Stores and manages information about your network devices
- netwox — Network testing toolbox
- NeuroScope — an advanced viewer for electrophysiological and behavioral data.
- Newsadmin — Simple news administration system
- NewsCloud Media Platform — A media platform for citizen journalism and the social news
- NewsFeed — RSS reader and aggregator with minimal dependencies
- Newspost — Newsgroup posting tool
- Newsq — Helps to efficiently process messages in an outgoing mail queue
- Nflash — Posts news to a Web site
- ngetdaemon — Lets users read and download from Usenet quickly and efficiently
- Nice — Object-oriented language with advanced features
- NKAds — Banner ad administration system
- NNTPobjects — C++ classes for creating NNTP clients
- Noffle — Offline news server
- NOLA — A PHP-based business accounting and inventory application.
- nomadii — driver for the Nomad II GNU/Linux Driver Suite.
- nomadiigui — GUI for the Nomad II GNU/Linux Driver Suite.
- Nomarch — Extracts files from the old .arc archive format
- Nonsense — Random text generator
- NorthStar — Tracks and assigns IP allocations
- noSQL — Relational database management system for UNIX
- Notemeister — a simple note jotter and organizer for the desktop.
- Notespam — Filter-style spam-marking script
- NuFW — Filters packets on a per-user basis
- NumEdit — A very powerful and simple to use hexadecimal / binary / octal / decimal editor.
- NumExp — Math-oriented programming language
- Nut — Diet and nutrient database
- Nuxeo CPS — Collaborative portal and content management server
- OBM — Intranet groupware application
- ochiba — A cross between photo album software and image board software
- ocre — Optical character recognition (OCR) system
- Octave — High-level language for numerical computations
- Octave-ocs — a package for solving DC and transient electrical circuit equations for Octave.
- odt2txt — A simple (and stupid) converter from OpenDocument Text to plain text.
- OFELI — a library of finite element C++ classes for multipurpose developement of finite element software.
- OGDF — Open Graph Drawing Framework
- Oleo — Lightweight spreadsheet program
- OmniORB — CORBA orb
- OneFinger — GUI for writing CLI commands with the mouse
- Online Grades — Online Grades is free software allows schools post grade information online using exports from several popular gradebook programs.
- OpenEMR — A medical practice management and health record (EMR) system.
- OpenFOAM — Computational Fluid Dynamics (CFD) toolbox
- Openmailadmin — A new approach to administration of IMAP mail servers.
- openPlaG — Is a function graph plotter for websites in PHP
- OpenProofPower — a specification and proof tool
- OpenRealty — Real estate listing manager
- OpenStego — a tool implemented in Java for generic steganography.
- OrangeHRM — Is a comprehensive Human Resource Management (HRM) System.
- OSCAR — Helps build free software clusters
- OSKit — Tools for operating system development
- Otak — Provides command line interface for programs without one
- outl — Advanced search and replace program
- OWFS — the 1-wire filesystem
- p — A bunch of particles interact with each other according to simple rules. And complex behaviour emerges.
- Packet2sql — Converts files with ipchains packet logs to SQL inserts
- PacketFence — a Network Access Control (NAC) system.
- paco — Source code package manager
- pad — Small, lightweight text editor
- Pagecast — Submits lists of URLs to search engines
- pAgenda — Cross-platform calendar/schedule.
- PAI — Artificial intelligence program
- pam_pwcheck — PAM module for password strength checking
- Pancho — Makes configuration changes through SNMP and TFTP
- Panorama — Framework for 3D graphics production
- Pantry — Is a command line nutrient analysis.
- Paperclips — Webserver and dynamic content container
- Papyrus — XML-based reporting langauge for PostgreSQL and MySQL
- Parchive —
- PARI/GP — Software for computer-aided number theory
- Parma Polyhedra Library — C++ library for the manipulation of convex polyhedra
- Pasdoc — Documentation generator for pascal source code
- PASP - Python Anti-Spam Proxy — a python email filter using a bayesian like statistical method.
- passwd_exp — Checks password/account expiration status
- Patch — Applies a patch to a file
- Paxutils — Tool to manage file archives
- Paymaster — A payroll and HR database application
- PCB — Designs printed circuit board layouts
- PCXFirewall — IPTables firewalling application
- PDFedit — Free editor for PDF documents.
- PDF Editor — A GUI editor for manipulating PDF documents
- PDFjam.txt — Interface to the pdfpages package for pdfLaTeX
- PDFMap — Generates maps in PDF format
- pdnsd — Proxy DNS server
- pdumpfs — Simple daily backup system
- Pencil — traditional 2D animation program
- Penetrator — Indexes big trees
- Penguin Greetings — Internet greeting card application
- PerlBoard — Threaded messageboard system
- Perl Critic — Critiques Perl source code for best-practices
- perl-reference — Displays Perl reference documentation
- Perltidy — Perl code indenter and beautifier
- Personal Expenses Manager — Is a command line accounting program
- pf2x — Converts pflog output into various formats
- Pfm — Terminal based file manager
- Pharch — Lets users place their photo archive on the Web
- phorum — Web-based discussion software in PHP
- Photo Calendar — an easy to use browser interface for creating personalized calendars.
- Photoshrink — Creates thumbnails and writes the supporting Web pages
- php3guest — Multilingual Web guestbook
- phpagi — PHP class for writing Asterisk AGI scripts
- phpBugTracker — Bug tracking system
- PHP Code Snippet Library — a library designed to let you store all your favourite code snippets, functions and classes.
- PHP DB Form Creator — can be used with a database to create any kind of web form.
- PHPFilm — Manages a film collection
- 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.
- PHPkrm — GNUPG keyring manager
- phpLinkValidator — Validates links in HTML documents
- phplist — newsletter system
- phpMyAdmin — Handles the basic administration of MySQL over the Web.
- PhpMyExplorer — Lets you update your site online without ftp access
- phpMyVisites — Web traffic analyzer with detailed reports and advanced graphics
- phpScheduleIt — Web-based reservation system
- phpSera — Search engine ranking analysis tool
- phpsitestats — Website monitoring and statistics software
- php-syslog-ng — Front-end for viewing syslog-ng messages logged to MySQL in real-time
- phpThumb() — Thumbnail generator
- phpWebThings — PHP classes for creating a Web site
- phpWX — Displays current weather conditions
- PHPX — Web content management system
- phpxmail — GUI for the Xmail administration extensions
- Picalo — Data Analysis Software
- PicBook — Automatically produces an HTML album of your images
- PIKT — System monitoring tool
- Pinfo — Ncurses based info documentation browser
- PipeMore — Pipes data to a new window
- PIPS — Converts data between formats
- pircstats — IRC network statistics bot
- pitchfork — A Web interface to musicpd.
- PJ — Toolkit for creating and manipulating PDF documents
- Plait — A program that builds playlists and submits them to a music player.
- Planet Finder — Shows the location of planetary bodies
- Planimo — an instant messenger for lan chats.
- Plans — Web-based calendar
- Playmidi — MIDI player for GUS, FM, and external MIDI devices
- Pliant — Programming language framework
- PLM — Tracks the lifecycle of patches against a source tree
- PMReport — PHP/MySQL report generator
- Pogo — Launcher for X11
- Poink — TCP/IP-based ping implementation
- PolygonPuzzle — Tesselation puzzle
- PonG — Library and GUI tool for creating configuration dialogs
- Pootypedia — A tool for tracking your end users' hardware.
- pop2imap — Facilitates incremental POP to IMAP transfers
- Pop3eye — POP3 email notifier
- POPauthd — Authorizes connecting hosts for SMTP relaying
- Poppler — a PDF rendering library.
- Poppler Encoding Data — encoding data for the Poppler PDF library.
- Poppy — Retrieves email headers
- Portable Media Player library (PMPlib) — develops a management software/library for various portable media players.
- PostGIS — Adds support for geographic objects to PostgreSQL
- Pound — Reverse HTTP proxy, load balancer, and SSL wrapper
- Powertweak-Linux — optimises your system to run at peek performance, by adjusting hardware settings, and config files.
- ppplog — Keeps track of PPP online sessions
- prcs — Project Revision Control System
- PreMail — Mail previewer and deleter
- Privoxy — Web proxy with advanced filtering capabilities
- procps — Utilties that monitor system status
- Profoil-WWW — Wind tunnel data analyzer
- ProGuard — Java class file shrinker and obfuscator
- prokyon3 — An MP3/Ogg Vorbis/FLAC manager and tag editor.
- protector — E-mail virus blockade
- psmisc — Proc filesystem tools
- Psmon — Process monitor
- pssh — Parallel versions of OpenSSH tools
- Psyched — task management for GTK
- Psychopg — PostgreSQL database adapter for Python
- Ptx — Index generator
- pucko — Ncurses music player
- Pure FTP server — FTP server
- PurpleView — Paper review system
- PwManager — Password manager
- PWP Wiki Processor — Wiki written in PHP
- Pwytter — Is a Twitter GUI client
- py-acqua — Allows you to monitor your aquarium
- pyao — Wrapper for the 'ao' library
- PyDO — a Python ORM supporting many RDBMS backends.
- Pygmy — Gnome mail client written in Python
- PyKota — Print quota system for CUPS
- pymacs — framework which allows both-way communication between Emacs Lisp and Python.
- PyMaViS — Removes email attachments and scans them for viruses
- Pyne — Offline newsreader and emailer
- pyNeighborhood — GTK+ 2 front-end for Samba client tools.
- PyOpenGL — a cross platform Python binding to OpenGL and related APIs.
- PyPE — Midsize programming editor
- PyPIV — Is a Python clone of a Matlab toolbox for PIV (Particle Image Velocimetry) analysis
- Pysweeper — Implementation of the classic Minesweeper game
- Pythoneol — An program for helping English speakers to learn Spanish.
- PythonMilter — Python interface to sendmail's libmilter
- PythoPhotoPod — Python-based GTK+ GUI for synchronizing photos and photo albums with your pod with a color display
- PyTone — Music jukebox written in Python
- QC-usb — QuickCam Express Driver
- QDist — Computes the quartet distance between unrooted evolutionary trees
- QDVD-Author — DVD authoring suite
- QEMU — a generic machine emulator and virtualizer.
- QEMU Accelerator Module (KQEMU) — a host driver for QEMU.
- Q-Graph — Library for combinatorial graphs
- Qmail-masq — Masks an internal mail address
- Qmail-Scanner — Content scanner for qmail
- QMetro — Electronic metronome
- qmHandle — Manages the qmail message queue
- QPopper — POP3 server
- Qps-h — A GUI version of ps and top a process monitoring tool.
- QtUnit — Testing framework for C++
- QueryXmms — Queries XMMS about what it is currently doing
- queXC — a web based data cleaning and coding system.
- queXS — a web-based CATI (Computer Assisted Telephone Interviewing) System.
- Quick and Dirty Sync — tries to make two directories the same by comparing files sizes and copying new or changed files across in both directions.
- Quicktables — Iptables firewall/NAT script generator
- Quilt — Patch management tool
- QuoteEngine — Lets users store IRC quotes in a MySQL database
- QuteCom — SIP Software
- RadioActive — Front-end for video4linux-compatible radio devices
- radiocheckbox — Easy to handle the inputs with radio and checkboxes in forms.
- Ragel State Machine Compiler — Compiles finite state machines from regular languages into runnable C code
- Randomsig — Produces random signatures
- RATS — Security auditing tool for source code
- rbMyXml — Generates XML data files from generic SQL queries
- rcms — content-management-system
- Really Easy Video Encoding Library — the shortest, simplest path between your application and high-quality, highly-compressed video file dumps.
- Really Rather Good Battles In Space — A real time strategy game with fleets of spaceships.
- Recode — Front end to the 'recode' translation library
- Recruit — Academic job application management system
- Reed — Autoscroller
- refbase — Web-based bibliographic database
- ReferenceFinder — Finds sequence to locate a point in a square
- Referencer — A document organiser and bibliography manager
- regexxer — GUI search/replace tool
- Regular Expression Graphing Program — A regular expression graphing program.
- REJIK — Web filtering system
- Rekall — Database front end for KDE
- Relax log analyzer — Web server log analyzer
- Remembrance Agent — Associative memory applications
- remind — Calendar/reminder program
- remstats — Gathers, monitors, and maintains data from servers and routers
- renameutils — Programs to make renaming of files easier
- Reqtool — Tool for managing e-mail requests
- Re-Tail — An intelligent incremental logfile reader.
- Rexima — Curses-based interactive mixer
- RFC — Helps system administrators run a filesystem checker
- Rh-errata — Maintains a Red Hat system
- Rhyming Dictionary — Rhyming dictionary
- RIGEL — Representation-Independant Genetic Engine Library
- Ringlink — Tools for running Web rings
- ripperX — Rips CD audio and encodes mp3s
- Rippy the Aggregator — Lightweight RSS aggregator
- rlib — Creates reports from XML definition files
- RoadMap — A car navigation system for Unix and PocketPC.
- Rockbox — Firmware for Archos MP3 players
- Rocks'n'Diamonds — Puzzle game similar to Sokoban, Boulder Dash, Emerald Mine, or Supaplex
- roll — A command-line dice roller.
- root — Data analysis package developed at CERN.
- RootkitHunter — Scans for rootkits, backdoors, and sniffers
- rootz — mounts complete live distros over the web, and makes them available locally.
- Roundcube — a browser based multilingual IMAP client with an application like user interface.
- Roxen — HTTP server
- rpm-get — RPM management application
- Rpmstatus — Shows which RPM packages are installed on machines
- RPM Wizard — An easy-to-use RPM installer.
- Rpncalc — RPN calculator emulating H-P 28S
- RRD Tool — Stores and displays time-series data
- rsaver — Simple X Screensaver
- rsnapshot — Makes periodic snapshots of local machines and remote machines
- rsync-incr — Performs automated, unattended, incremental, disk to disk backups
- rtf-converter — RTF to HTML converter
- Rubber — Building system for LaTeX documents
- RubyGems — a package management framework for Ruby.
- Ruby/GSL — is a ruby interface to GNU Scientific Library.
- Ruby Mechanize — a ruby library that makes automated web interaction easy.
- Ruby/RSS — Object oriented Ruby library for manipulating RSSs
- Rumor — MIDI keyboard to Lilypond converter
- Run — Controls CPU biasing of processes
- RunLaunch — GTK/Gnome program execution utility
- Rutaci — is a command line tool for manipulating the metadata of music files (among others id3 tags).
- rwdshell — Runs shell commands in a Web browser
- rwdtinker — Ruby application framework that uses the RubyWebDialogs GUI
- Rx — Free regex library
- rxvt — Xterm replacement that uses less memory
- SafetyNet — Keeps critical processes running
- Sagasu — Finds strings in multiple files
- sage — SAGE is free and open software that supports research and teaching in algebra, geometry, number theory, cryptography, etc.
- sam2p — Converts raster images to Adobe PostScript or PDF files
- Samhain — File system integrity checker
- SANE — API that provides access to raster image scanner hardware
- sanity.pl — Renames files to a sane name
- SAPID Inline CMS — SAPID is a CMS for creating and managing websites
- savIRC — IRC client
- sbcd — Curses CD player
- SCA-CMS — Content management system based on PHP and the SCA class library
- schedtool — Alters or queries a process's scheduling policy
- Schedultils — 'chrt' and 'taskset'
- Schism Tracker — An Impulse Tracker clone.
- Scid — Chess database
- SciGraphica — Data analysis and technical graphics
- Scout Portal Toolkit — Toolkit for developing online knowledge bases
- scponly — Restricts remote shell access to "ls" and "scp" comands
- Scriptorium — Multi-lingual code library
- ScriptsMill Comments — It is a free php script that allows users to add comments on certain pages of your website
- sdcc — ANSI-C compiler
- Sdcdc — Build system for the Debian CD's covers and labels
- SDLHana — An SDL-based Hanafuda game.
- sdlyuvaddon — an addon to SDL yuv functions.
- search4files — A file search tool using different backends which is configurable via the command line.
- SecretSanta — Web application for anonymous giving within a group
- Sede — Electronic voting software
- Sedsed — Generates debug files in sed
- seealso — Searches and prints references from manpages
- Sencap — Encapping software
- Senddfbymail — Downloads, splits, and emails files
- SendIP — Sends arbitrary IP packets
- sendpage — Paging system
- Serel — Improves boot time
- SGK — One-way encryption algorithm
- Sglib — C library inspired by the Standard Template Library from C++
- SGQI — Print quota system for CUPS
- shc — Produces C source code from a script specified on the command line
- Shed — Curses-based editor
- Sherlog — Website log analyzer
- Shohei Mail — Web-based multi-user mail gateway.
- Shoreline Firewall — Iptables based firewall
- Shuffle DBuilder — sophisticated shuffle algorithm
- Siege — HTTP regression testing and benchmark utility
- Sigel — 3D robotic simulation
- siggen — Email signature generator for encrypted ansi C signatures
- Sigil — a multi-platform WYSIWYG ebook editor.
- Silly Translation library (Silt) — provides functions to encode and decode text using several "silly" translation algorithms.
- Simdock — Is a fast and customizable dockbar for the desktop.
- SImg — Astronomical image processing software
- simplebackup — Cross-platform backup program
- SimpleForm — Simple, quick, usable form processor
- Simple Instant Messenger — ICQ client
- Simple Multitrack — is Gnu/Linux or Mac OS X software for recording and mixing multitrack audio.
- Simple XML Configuration Library — An xml library for parsing a simple configuration file format.
- SimPy — Simulation package for Python
- SINS — Simple modular nibble-like game
- Sipsak — Tests SIP devices and applications
- SISC — Java-based Scheme interpreter
- Sispread — simulates the dynamics of an hypothetical infectious disease within a contact network of connected people.
- Sitr — Knowledge Base
- skdetect — Detects SucKIT
- Skipper — Full GUI accessibility for severely movement impaired people
- Skipstone — Browser that embeds Mozilla through libgtkembedmoz
- Slide2handout — Creates printable versions of PDF slides
- Slideshow Creator — A visual editor for dvd-slideshow.
- SlimServer — Interface for various types of music playback
- SLiteChat — a text-only IM/chat client for use with Second Life.
- SLOCCount — Counts lines of code in a program
- Smail — Mail transport system
- SmartCache — Java proxy cache server
- SmartEiffel — Eiffel compiler
- smbc — Text mode SMB network commander
- SMILCut — Synchronizes data from different media sources (previously named LiveCut)
- SMILutils — Tools for manipulating SMIL format files
- SmokePing — Monitors and graphs network latency
- SMSer — a command-line application that lets you send an SMS messages to a list of phone numbers located in a file.
- SNACC — ASN.1 to C or C++ compiler
- Snackware — A game in which programmers compete with each other.
- SnapLogic — SnapLogic transforms data into Data services using a RESTful architecture and built in Python
- Snatcher — Full-text search engine for Japanese or English text
- Snoopy Logger — Logs all executed commands
- SNORT — Network intrusion detection system
- Snortalog — Summarizes Snort logs
- Snowbox — Small, secure POP3 server
- Snowlog — Web server access log browser and analyzer
- Snownews — Text mode RSS/RDF newsreader
- Sodipodi — Vector drawing applications
- SoundConverter — Converts audio formats within GNOME
- Sound Monitor — Shows esound output
- Sound Mural — is a command line program that converts images to sound.
- Sox — Converts between various audio formats
- SPA — Archiving tool for Web pages
- Spaminator — Web interface for sendmail's anti-spam functionality
- Spam Trainer — A drag and drop spam filter trainer for GNOME.
- Spastic — Set of Filters for email
- SpecTcl — Helps analyze nuclear physics event data
- Spinner — Keeps telnet and ssh links from dropping
- SPIPAT — a package that adds SNOBOL4/SPITBOL style patterns to Python as composable objects.
- Split-Dist — Calculates the number of splits (edges) that differs for two trees
- SplitVT — Splits a terminal window into two shell windows
- Splonk — Spam eliminator
- SPlotter3D — 2D and 3D plotter
- SportsTracker — A tool for recording sport activities.
- sps — is a Simple Password Storage program
- SQLDiff — Shows the difference between two SQL database tables
- SQLiteManager — Tool for managing SQLite databases
- SQL-Ledger Accounting — Multiuser double entry accounting system
- Sqlupdate — Generates scripts for updating MySQL databases
- squidrunner — a script that gets the latest Squid source and patches, builds and installs the source.
- SquirrelMail — E-mail reader
- Squirrel Shell — System shell
- ssh-installkeys — Exports SSH public keys to specified sites
- Stand Alone Tray — A stand-alone notification area.
- Stat — Displays information about a file
- StatEye — Determines web site traffic
- Step into Chinese — to help English speakers learn Chinese
- Stereograph — Stereogram generator
- stftp — a "simple" terminal FTP client, using ncurses.
- StickyNotes — Electronic Post-It notes
- Stitch — Backup utility
- storebackup — Disk to disk backup tool
- strec — Lets you record streams as MP3s
- Stress — Simulates certain types of stress of a system
- stripmgr — Expanded version of "DailyStrips"
- Subterfugue — System call tracing and rewriting utility
- Sudoscript — Provides an audited root shell
- Sugar — promotes sharing, collaborative learning, and reflection for young computer users.
- Sugar Presence — promotes sharing, collaborative learning, and reflection for young computer users.
- sugerplum — Automated spam-poisoner
- Sunwait — Calculates sunrise, sunset, and civil, nautical, twilight, astronomical twilight
- SuperKaramba — A tool to allow desktop eye-candy.
- Super-sed — Enhanced version of the sed text editor
- Superswitcher — A more feature-ful replacement of the Alt-Tab window switching behavior.
- SuperTux — SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original SuperMario games.
- 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.
- Surfraw — Command line interface to the Web
- svg-to-png — Batch convert svg to png format
- swapd — Dynamic swap creation daemon
- SweepOver —
- swfw — Perl CGI Web page generator
- Swpkg — Software packaging tools
- synergy2 — Lets users share a single mouse and keyboard between multiple computers
- sysindex — Provides information about system in both human and machine readable formats
- Sysstat — The sar, mpstat, and iostat commands
- System call tracker — Intercepts and acts on system calls
- SystemImager — Automates an installation to multiple machines
- T2 — Distributed Build Tool
- tacshell — Drop-in replacement for sdshell
- taglog — Time and activity tracking application
- Tanne — Session management tool for HTTP
- Tapeback — Backup system
- Taper — Backup application
- Tardy — Tar post-processor
- Tarot Club — Tarot card game
- TaskJuggler — Project management tool
- Tau — Utility to track student attendance and scheduling
- Taxbird — An Elster client (for German tax declarations).
- TCDR — Frontend for various audio programs
- Tcl-tools — Tools for Tcl programmers
- Tcptraceroute — Traceroute implementation using TCP packets
- tcshrc — Config files that use the 'tcsh' shell
- Tdl — To-do list manager
- Tellico — Collection manager for KDE
- Templeet — Template engine
- Tent — PHP/SQL intranet application
- termlock — Blanks and locks a curses-compatible character terminal
- Terraform — Fractal landscape generator/viewer
- TestDisk — Check and undeletes partitions
- TextTokenizer — Module for fast text analysis/parsing
- TFT Gallery — Image gallery that doesn't need a database
- The Anomy Sanitizer — Blocks e-mail based security risks
- The Freedos Project (FreeDOS Kernel) — Project to create a free, 100% MS-DOS compatible operating system
- The Jaza Animator — `Animator' for the Z formal specification language
- Theorur — A GTK2 GUI for Ogg/Theora live streaming.
- Thought Bucket — A Web interface for storing random thoughts and ideas.
- Threads — Library to make threading under C++ easier
- Tickle Dictionary — an online dictionary look-up tool.
- Tiger — Performs security audits and acts as a host-based intrusion detection tool
- Tiger PHP News System — is a PHP driven news site that aims to be secure, easy to install and maintain.
- Tile Driller — Simple paint program
- Tiny COBOL — COBOL compiler
- TinyDYN — Client and server software for dynamic DNS services
- Tiny Login — Suite of small Unix utilities
- Tiobench — Threaded I/O bench for Linux
- TkDVD — A GUI for burning DVD+R/W -R/W discs.
- Tkhangman — GUI version of the classic 'hangman' game
- Tksql — Edits PostgreSQL database tables
- tntnet — A Web application server for C++.
- Toast — *nix package manager
- TOCHNOG — Finite element analysis program
- To-Do — Web-based to do list application
- Tojo — Web-based collaborative journal system
- Torque Network Library — a robust, secure, easy to use cross-platform C++ networking API library.
- torrentocracy — An RSS aggregator and bittorrent downloader for MythTV.
- tpop3d — POP3 server
- Train Director — Train dispatch simulator
- 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.
- Transconnect — Lets users behind a proxy connect directly to the internet
- Trash Can — Command line recycle bin
- TRE — Regexp matching library
- TreeLine — Organizes and stores text in a tree structure
- tree.pl — Creates sitemaps
- TTRM — Generator of musical arrays and search machine for pitch class sets
- tub — Supports large dynamic arrays while still using shared libraries and dynamic linking
- tumble — Converts TIFF (B&W only) and JPEG files into PDFs
- TunnelTools — Allows access to anonymous rsync and CVS pserver servers from inside a firewall
- tupd — Reports uptime statistics via HTTP
- Turck MMCache — Opcode cache for PHP
- Turma — A Gtk text search and replace utility.
- TuxCall — Call waiting detector
- Tuxlook — is a system information displaying program with an ASCII Tux in colors.
- TuxPaint — Drawing program for young children
- Tux Perl — is a mod_perl like perl interpreter for Tux.
- TuxWordSmith — Multi-lingual "Scrabble"
- TWiki — Web-based collaboration platform
- Twin — Text-mode window environment
- txt2graph.pl — Visualizes structures and dependencies between words
- txt2tags — Format conversion tool
- Uberkey — Keylogger for x86 systems
- udpcast — Install software via UDP multicast.
- UFTP — UFTP - UDP based FTP with multicast
- UID — Configurable unique ID generation.
- Ulim — Enforces resource limits on processes
- Umix — Adjusts soundcard volume and other features
- unac — Removes accents from strings
- Unattended-gui — is a system to support unattended installations of GNU/Linux on multiple machines.
- Uniread — Adds 'readline' support to any command line program
- Unison — File synchronizer
- universal_crc — utility for generating optimized ANSI C code for CRC calculation
- Unix2tcp — Connection forwarder
- Usenet Binary Harvester — A Perl script to find and download single and multi-part Usenet binaries.
- Userinfo — Shows info about local users
- Userneu — Account management and creation tool
- userv — Security boundary tool
- uSTL — a size-optimized STL implementation
- uucp — File copying program
- Vacation — Email autoresponder
- Valgrind — Memory debugger
- Vectoroids — Vector-based asteroid-shooting game
- VFU File Manager — Text-mode file manager
- VideoCache — Squid url rewriter plugin to cache dynamic audio/video content from different video portals/websites.
- Video Displaying On Wall — creates real-time video displays during events.
- vile — Vi-compatible text editor
- Vilistextum — HTML to text converter
- Vilno — data transformation, prepare data for analysis, use for statistics, reporting or ETL.
- vim2html — Converts vim files to HTML
- ViPEC — Network analyser for electrical networks
- VIPS — Image processor
- Visitors — Very fast web log analyzer with web path analysis functions
- VisLib — Manages hierarchically organized couples of visual and textual information
- VisoHotlink — Visohotlink is a php/MySQL script that helps you to detect and manage hotlinks of your files, but also referers.
- VisualOS — An educational visual simulator of an operating system
- vloopback — Device driver that generates video pipes
- vlorb — CD to Ogg Vorbis ripper and encoder
- VM — Mail reader for Emacs
- VNet — Turns a single-user VRML world into a multi-user environment
- vnstat — Network traffic monitor that uses the /proc filesystem to get information
- Volume Normalizer plugin for XMMS — an XMMS plugin that is used to give all songs the same volume level.
- Vorpal Mail — User-friendly sendmail replacement
- VPNbc — Deploys IPSec tunnels using FreeSWAN.
- Vrcon — Utility for administering Half-Life servers
- vsftpd — FTP server for *NIX-like systems
- vshnu — Visual shell
- VTKDesigner — Tool to facilitate the design of VTK visualization pipelines
- vtracer — Verilog Testbench auxiliary tool
- WackoWiki — a slight and handy Wiki-engine.
- Walker — Updates an entire Web site
- WallpaperZapper — A GNOME background changer.
- Wap-IRC — A wap<->irc gateway tool.
- Watchdog — Software watchdog daemon
- Waterworks — Realtime compositing system
- wbar — An eye candy quick launch bar.
- Wcalc — Calculator
- wcd — Directory changer
- Wdm — Graphically handles login and authentication
- Webalizer — Web server log analysis program
- WebCit — Web-based front end to the Citadel/UX BBS package
- WebDialer — Configures and starts/stops connections from a browser
- webfs — HTTP server for purely static content
- webgen — is an easy-to-use, extensible web site generator in Ruby.
- WebMail — Manages IMAP or POP3 mailboxes via the Web
- Webminstats — Sysstats module for Webmin
- Webrowse — Interacts between browser and other desktop components
- Websize — a helpful script that connects to websites and provides statistics on their total size.
- Webval — a URL scanner, maintainer, and validator.
- Wellenreiter — An easy to use, GTK/Perl-based wireless sniffer/scanner with enhanced features.
- whatpix — Duplicate file finder.
- Wheretero — A tool to detect country from network information.
- Whois — Advanced and intelligent whois client
- Wifi Radar — Connect and List local Wifi Networks
- WikiLaTex — Wiki for developing and cataloging LaTeX works
- WikkaWiki — a flexible, standards-compliant, and lightweight wiki engine written in PHP.
- WikyBlog — A Bliki CMS (blog + wiki) written in PHP/MySQL.
- Window Maker — Window manager for X Window System
- Wipe — Secure file wiping utility
- Wired — A professional music production and creation system.
- Wml — HTML generation toolkit
- WMTimer — Dockable alarm clock for Windowmaker or Blackbox
- wmxkb — Shows and controls XKB groups
- WordPress — Weblog
- Workon — Sets up the environment to work on a CVS tree
- Workrave — Helps users prevent or recover from RSI
- WorldPrint — Facilitates printing of non-latin1 character sets
- WormScan — Reports attempted attacks on Apache Web servers
- wsh — Remote shell that works via HTTP
- wview Weather System — an application for weather stations.
- WWWOFFLE — Simplifies Web browsing from computers with dial-up connections
- wxRemind — A wxPython-based GUI for Remind.
- Wyrd — Curses front-end for the calendar/alarm application 'remind'
- x2vnc — Lets screens on two different computers act as one
- xautolock — Monitors console activity under the X window system
- X Automation Tools — Tools that control command line input to X
- XawTVapplet — XawTV remote control applet
- Xcave — Software to manage a wine cellar
- X-CD-Roast — CD creation tools
- Xcoral — Mouse-based text editor
- xcutmp3 — Frontend for cutmp3
- xd3d — Simple scientific visualization tool
- x-Desktop — Unifies different interfaces into a browser-only interface
- Xdialog — Replacement for the dialog and cdialog programs
- Xdiary — Calendar/diary program
- Xem — Program to calculate Ph balance
- Xen — Virtual machine monitor for x86
- XenMan — GUI based xen management tool
- XFA — Portable finite state automata library
- X File Explorer — A file manager for the X Window System.
- xfontselector — Facilitates font selection for X Windows
- Xhdbench — Tests output speed of various devices
- xhkeys — Assigns actions to otherwise unused keys
- XIFMon — Monitors any interfaces in the /proc file system
- xine — Video player for Unix-like systems
- Xinfo — X window program for reading Info files
- X-Itools — eXtended Internet Tools
- xmail — Mail server
- XmGraph — Graphing widgets
- xmlclitools — Command line tools for manipulating XML data
- xmms-crossfade — An XMMS output plugin for crossfading and gapless output.
- Xmorph — Image morphing program
- XMovie — Watch uncompressed movies
- 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
- Xournal — an application for notetaking, sketching, keeping a journal using a stylus.
- Xpad — Virtual sticky notes
- XPde — An XP-like desktop environment for GNU/Linux.
- Xplanet — Draws the earth or other planets
- xps — Displays Unix processes as a tree under X
- X Python Newsreader — A multi-platform newsreader with Unicode support.
- Xsane — Scanner-oriented frontend for SANE
- Xsh — XML editing tool
- Xtraceroute — Graphical version of 'traceroute'
- XTux — Network shoot-'em-up game featuring free software mascots
- Xvcg — Displays VCG (Visualition of Compiler Graphs) Format
- xwax — vinyl emulation software
- Xwrits — Reminds you to take wrist breaks
- yagg — Generates all strings of a user-specified length.
- Yate- Yet Another Telephony Engine — Telephony engine
- yavipin — Secure tunnel
- yawk — Wiki clone written in gawk
- ypserv — Simple network lookup service
- ytnef- Yerase's TNEF Stream Reader — a program to work with procmail to decode TNEF streams (winmail.dat attachments) like those created with Outlook.
- ytree — File manager with an xtree-like interface
- yudit — Unicode text editor for the X Window System
- Z80-ASM — Compiler for the Z80 CPU assembler
- Zebot — Modular IRC bot
- Zebra — Implementation of routing protocols
- Zen-Slideshow — Is a php slideshow application for web sites
- Zile is Lossy Emacs — An Emacs clone.
- Zinf — Cross-platform audio player
- ziproxy — Proxy that gzips files and reduces image size
- Zmanda Recovery Manager — an easy-to-use yet flexible and robust backup and recovery solution for MySQL server.
- zmixer — Simple volume control
- ZoneMinder — Applications for video capture, analysis, recording, and monitoring
- Zorp — Proxy firewall suite
- Zuul — PHP-based frontend for the MLDonkey p2p app
- zynaddsubfx — Free implementation of a sound synthesizer