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GNU

This entry published by the Free Software Foundation.

GNU is a Unix-like operating system that is free software—it respects your freedom. You can install Linux-based versions of GNU which are entirely free software. The GNU System provides a collection of applications, libraries, and developer tools, plus a program to allocate resources and talk to the hardware, known as a kernel.

For a complete list of GNU packages and more, visit gnu.org/software.

Description Homepage License
3DLDF 3D drawing package http://www.gnu.org/software/3dldf/LDF.html GPLv2orlater
A2ps Any to PostScript filter http://www.gnu.org/software/a2ps/ GPLv2orlater
GPLv3orlater
ACM Aerial combat simulation game http://www.gnu.org/software/acm GPLv2orlater
AUCTeX Integrated environment for editing LaTeX and TeX files http://www.gnu.org/software/auctex/ GPLv2orlater
Abdabi Service discovery system for DotGNU http://savannah.gnu.org/projects/abdabi/ GPL
Acct GNU system accounting utilities http://savannah.gnu.org/projects/acct/ GPLv2
Adns Resolver library for C and C++ programs http://www.chiark.greenend.org.uk/~ian/adns/ GPLv2orlater
Aeneas the GNU package for the design and simulation of submicron semiconductor devices. http://www.gnu.org/software/aeneas/ GPLv3
Aetherspace Project to produce a multiplayer game http://savannah.gnu.org/projects/aetherspace/ GPLv2orlater
Anubis Processes outgoing mail http://www.gnu.org/software/anubis/ GPLv2
GPLv3orlater
Archimedes Software for designing and simulating submicron semiconductor devices http://www.gnu.org/software/archimedes/ GPLv2orlater
GPLv3
Aroundme Social networking and team interaction software http://www.barnraiser.org/aroundme/ GPLv3orlater
Aspell Spell checker http://aspell.net/ LGPL
Autoconf Produces shell scripts which automatically configure source code http://www.gnu.org/software/autoconf/ GPLv2orlater
GPLv2 with exception
GPLv3orlater with exception
Autoconf-archive collection of free autoconf macros http://www.gnu.org/software/autoconf-archive/
Autogen Automated program and text generation http://www.gnu.org/software/autogen/ GPLv3orlater
Automake Generates Makefile.in files http://www.gnu.org/software/automake/ GPLv2orlater
Avl Library for balanced binary trees http://www.stanford.edu/~blp/avl/ GPLv3orlater
LGPLv3orlater
BPEL2oWFN translates a web service expressed in BPEL into an oWFN http://www.gnu.org/software/bpel2owfn/index.html GPLv2orlater
Ball and Paddle an old-fashioned ball and paddle game. http://www.gnu.org/software/ballandpaddle/ GPLv3
GFDL
Barcode Converts text strings to printed bars http://www.gnu.org/software/barcode GPLv2
Bash Shell of the GNU operating system http://www.gnu.org/software/bash/bash.html GPLv3orlater
Bayonne GNU telephony server http://www.gnu.org/software/bayonne/bayonne.html GPLv2orlater
Bazaar a friendly powerful distributed version control system. http://gnu.org/software/bzr GPLv2orlater
Bc Interactive algebraic language http://www.gnu.org/software/bc/manual/bc.html GPLv2orlater
Beacon Simple date and category-driven Web publishing system http://www.barnraiser.org/index.php?page=SoftwareBeacon GPLv2orlater
Binutils Collection of binary utilities http://www.gnu.org/software/binutils/binutils.html GPLv2orlater
GPLv2
LGPLv2
GPLv3
Bison Replacement for the parser generator 'yacc' http://www.gnu.org/software/bison/bison.html GPLv2orlater
Bool Utility for matching boolean queries in text http://www.gnu.org/software/bool/bool.html GPLv2orlater
C-Graph software for visualizing convolution and demonstrating the convolution theorem http://www.gnu.org/software/c-graph GPLv3orlater
COBOL for gcc Project to produce a free COBOL compiler http://www.gnu.org/software/cobol/ GPLv2
CPPI a cpp directive indenter. http://savannah.gnu.org/projects/cppi GPLv3orlater
Calendula Fund-raising/contact management software for non-profits http://savannah.gnu.org/projects/calendula/ GPLv2orlater
CcAudio2 Library and software for manipulating audio data http://www.gnu.org/software/ccaudio GPLv2orlater
Ccrtp RTP stack http://www.gnu.org/software/ccrtp GPLv2orlater
Ccscript C++ class framework for creating a virtual machine execution system http://www.gnu.org/software/ccscript/ GPLv2orlater with exception
Cfengine Maintains configuration of a heterogenous UNIX network http://www.cfengine.org/ GPLv2orlater
Cflow Charts control flow within source code http://www.gnu.org/software/cflow/ GPLv3orlater
Cgicc C++ class library for writing CGI applications http://www.cgicc.org/ LGPLv3orlater
GPLv2
GFDL
Chess Chess game http://www.gnu.org/software/chess/ GPLv3orlater
Cim Compiler for the programming language Simula http://www.gnu.org/software/cim/cim.html GPLv2
Classpath Free core class libraries for the Java programming language http://www.gnu.org/software/classpath/ GPLv2orlater with exception
GPLv2orlater
Clisp ANSI Common Lisp compiler, debugger, and interpreter http://clisp.cons.org/ GPLv2
Combine Extensible file matching and filtering http://www.theWorld.com/~dpv/index.html GPLv2orlater
Common C++ Highly portable C++ class library http://www.gnu.org/software/commoncpp/ GPLv2orlater
Coreutils Collection of basic file, shell and text manipulation utilities http://www.gnu.org/software/coreutils/ GPLv3orlater
Cp-tools 2 Tools for use with GNU Classpath http://www.gnu.org/software/cp-tools/ GPLv2orlater with exception
Cpio Archiver that handles various types of cpio and tar archives http://www.gnu.org/software/cpio/ GPLv3orlater
Cssc Free clone of SCCS http://sourceforge.net/projects/cssc/ GPLv2
GPLv3
DJGPP GCC, G++, and GNU utilities for DOS http://www.delorie.com/djgpp/ GPLv2orlater
DMD Service manager that's a replacement for SysV-init http://www.8ung.at/shell/ GPLv2orlater
Dap Statistics and graphics package http://www.gnu.org/software/dap/dap.html GPLv2orlater
Ddd Graphical front end for command line debuggers http://www.gnu.org/software/ddd/ddd.html GPLv2orlater
DejaGnu Framework to test programs http://www.gnu.org/software/dejagnu/dejagnu.html GPLv2
Denemo Graphical music notation program http://www.denemo.org/ GPLv3orlater
Dia GTK-based diagram drawing program http://live.gnome.org/Dia GPLv2orlater
Dico a flexible modular implementation of DICT server (RFC 2229). http://dico.software.gnu.org.ua/ GPLv3orlater
LGPLv2.1orlater
Diction Checks text for readability and bad usage http://www.gnu.org/software/diction/diction.html GPLv2orlater
GPLv3orlater
Diffutils Finds differences between and among files http://www.gnu.org/s/diffutils/ GPLv2
Dionysus a local machine search engine for universal constants and parameters of scientific and engineering relevance. http://savannah.gnu.org/projects/dionysus GPLv3orlater
Dominion Multi-player role-playing simulation http://savannah.gnu.org/projects/dominion/ GPLv2orlater
Double Choco Latte System for tracking bugs, changes, enhancements, and requests for software http://dcl.sourceforge.net/ GPLv2
Dr. geo Builds geometric figures http://www.ofset.org/drgeo GPLv2orlater
EDMA Modular development environment http://www.gnu.org/software/edma/edma.html GPLv2
EPrints Online information archiving system http://www.eprints.org/ GPLv2orlater
Ecc Elliptical curve class library http://users.pandora.be/stes/ecc.html LGPL
Ed Line-oriented text editor http://www.gnu.org/software/ed/ GPLv3orlater
Electric VLSI Design System CAD electrical circuit design system http://www.staticfreesoft.com/ GPLv2orlater
GPLv3orlater
Emacs Extensible, real-time editor http://www.gnu.org/software/emacs/emacs.html GPLv3orlater
Emms Emacs multimedia system http://www.gnu.org/software/emms/ GPLv2orlater
Enscript Converts ASCII files to PostScript GPLv2orlater
GPLv3orlater
Epsilon Strongly-typed omega-order programming language http://www.gnu.org/software/epsilon/ GPLv2orlater
Ferret GNU data modeller http://www.gnu.org/software/ferret/project/what.html GPLv2orlater
GPLv3
Fhp m4 macro for creating Web pages GPLv2orlater
Findutils Tools to find files and to operate on groups of files http://www.gnu.org/software/findutils/findutils.html GPLv2orlater
GPLv3orlater
Finger 2 Lets Unix users exchange information http://www.gnu.org/software/finger/finger.html GPLv2orlater
Fontutils Converts between font formats and creates fonts http://www.gnu.org/software/fontutils/fontutils.html GPLv2
Forum Web-based groupware system GPLv2orlater
FreeDink Free enhancement of the Dink Smallwood game engine http://www.gnu.org/software/freedink/ GPLv3orlater
FreeIPMI Intelligent platform management system http://www.gnu.org/software/freeipmi GPLv2orlater
Freefont Free UCS outline fonts http://www.gnu.org/software/freefont/ GPL
GPLv2orlater
GPLv3orlater
Fribidi Free implementation of the Unicode Bidirectional (BiDi) Algorithm http://fribidi.org/wiki/ LGPL
G++ C++ compiler http://gcc.gnu.org/ GPLv2orlater
GCC GNU Compiler Collection http://www.gnu.org/software/gcc/ GPLv3orlater with exception
LGPLv2.1orlater
GCL Compiler and interpreter for Common Lisp http://savannah.gnu.org/projects/gcl/ LGPL
GIFT Content based image retrieval system http://www.gnu.org/software/gift/gift.html GPLv2
GIMP GNU image manipulation program http://gnu.org/software/gimp GPLv2 with exception
GLPK GNU Linear Programming Kit http://www.gnu.org/software/glpk/glpk.html GPLv3orlater
GLUE 2 GNU Internet groupware project http://www.gnu.org/software/glue/glue.html
GLib Core library that forms the basis of GTK+ and GNOME http://www.gtk.org/ LGPL
GMP The GNU Multiple Precision Arithmetic Library http://www.gnu.org/software/gmp LGPLv2.1orlater
GNAT A complete Ada95 compilation system http://gcc.gnu.org GPLv2
GNOWSYS Hybrid database server with a kernel for semantic computing http://www.gnu.org/software/gnowsys/ GPLv2orlater
GNU Alive Automatic login and keep-alive utility for Internet connections. http://savannah.gnu.org/projects/alive/ GPLv2orlater
GNU Classspathx Unfinished free implementation of the Java extension libraries http://www.gnu.org/software/classpathx/ GPLv2orlater
GNU FM GNU FM is free software for running music community websites. http://gnu.org/s/fm AGPLv3orlater
GNU Font Editor Graphical font editor http://www.gnu.org/software/gfe/gfe.html GPLv2orlater
GNU GLOBAL Source code tag system for C, C++, Java, and Yacc http://www.gnu.org/software/global/ GPLv3orlater
GNU GRUB GNU GRand Unified Bootloader http://www.gnu.org/software/grub/ GPLv3orlater
GNU Generic Security Service - Libgss Implementation of the Generic Security Service API http://www.gnu.org/software/gss/ GPLv3orlater
GNU Gnash Flash Movie Player http://www.gnu.org/software/gnash/ GPLv3orlater
GNU Libidn Internationalized string preparation library http://www.gnu.org/software/libidn/ GPLv3orlater
LGPLv2.1orlater
LGPLv2.1
GNU Linux-libre UNIX-like monolithic kernel liberated and adopted by the GNU system http://linux-libre.fsfla.org GPLv2
GNU MAC Changer Is a utility to manipulate a MAC address http://www.alobbs.com/macchanger/ GPLv2orlater
GNU MDK Emulator and development environment for Knuth's MIX computer http://www.gnu.org/software/mdk/mdk.html GPL
GNU Messenger Secure messaging system http://www.gnu.org/software/gm/ GPLv2orlater
GNU MyServer Web server designed for inexperienced users http://www.myserverproject.net GPLv2orlater
GNU Ocrad OCR program based on feature extraction http://www.gnu.org/software/ocrad/ocrad.html GPLv3orlater
GNU POC manages smartcard passwords http://www.gnu.org/software/poc/poc.html GPLv2orlater
GNU Pascal Pascal compiler of the GNU Project http://www.gnu-pascal.org/ GPLv2
GNU Pipo A GNU Bulletion Board System http://www.gnu.org/software/pipo/Pipo-BBS.html GPLv2orlater
GNU Proxyknife Validate free proxies for users behind firewalls http://www.gnu.org/software/proxyknife/proxyknife.html GPLv3orlater
GNU R a language and environment for statistical computing and graphics. http://www.r-project.org/ GPLv2orlater
LGPLv2.1
LGPLv2.1orlater
GNU R 2 a language for statistical computing and graphics http://www.r-project.org/ GPLv2orlater
GNU Recutils Tools and libraries to access human-editable text-based databases http://www.gnu.org/software/recutils GPLv3orlater
GFDL
GNU SASL SASL network authentication library http://www.gnu.org/software/gsasl/ GPLv3orlater
GNU SQL Database management system http://panda.ispras.ru/~gsql/ GPLv2
GNU Smalltalk Implementation of the Smalltalk object oriented language http://smalltalk.gnu.org/ GPLv2orlater
GNU Solfege Eartraining program for GNOME http://www.gnu.org/software/solfege/ GPLv2orlater
GPLv3orlater
GNU Songanizer Script to organize a directory containing ogg and mp3 files. http://www.gnu.org/software/songanizer GPLv2orlater
GNU Source-highlight This program, given a source file, produces a document with syntax highlighting. http://www.gnu.org/software/src-highlite/ GPLv3orlater
GNU Spool a spooling system which can support any type of printer and printer interface. http://www.gnu.org/software/gnuspool/ GPLv3orlater
GNU TeXmacs Scientific text editor http://www.texmacs.org/ GPLv2orlater
GNU Teseq a tool for analyzing files that contain control characters and terminal control sequences. http://www.gnu.org/software/teseq/ GPLv3orlater
GNU ddrescue Data recovery tool http://www.gnu.org/software/ddrescue/ddrescue.html GPLv3orlater
GNU fdisk Is a libparted-based partitioning tool http://www.gnu.org/software/fdisk/ GPLv3orlater
GNU ghostscript Interpreter for the Postscript and PDF graphics languages http://www.ghostscript.com GPLv2
GNU go Plays the game of Go http://www.gnu.org/software/gnugo/gnugo.html GPLv2
GPLv3
GNU libmatheval Library for evaluating mathematical expressions http://www.gnu.org/software/libmatheval/ GPLv3orlater
GNU lightning Generates assembly language code at run-time http://www.gnu.org/software/lightning/lightning.html LGPLv3orlater
GNU moe A powerful and user-friendly text editor http://www.gnu.org/software/moe/moe.html GPLv3orlater
GNU robots Real-time game http://www.gnu.org/software/gnurobots/ GPLv2orlater
GNU sauce Anti-spam server http://www.chiark.greenend.org.uk/~ian/sauce/ GPLv2orlater
GNU tar Creates tar archives http://www.gnu.org/software/tar/ GPLv2
GPLv3orlater
GNU trueprint Prints source code to PostScript printers http://www.gnu.org/software/trueprint/trueprint.html GPLv2
GNUCash Personal and small business money-management software http://www.gnucash.org/ GPLv2orlater
GNUKart Racing game http://www.gnu.org/software/gnukart/ GPLv2orlater
GNUMP3d A light-weight audio server http://www.gnu.org/software/gnump3d/ GPLv2orlater
GNUMed Software for a paperless medical practice http://www.gnu.org/software/gnumed/ GPLv2
GNUbatch an advanced batch scheduling system for GNU. http://www.gnu.org/software/gnubatch/ GPLv3orlater
GFDL
GNUbik 3D Rubik's cube game http://www.gnu.org/software/gnubik/ GPLv3orlater
GNUcap A general purpose circuit simulator http://www.gnu.org/software/gnucap/ GPLv2orlater
GNUe Application Server Business logic server for 3-tier database applications. http://www.gnuenterprise.org GPLv2orlater
GNUe Common Library Python library for database abstraction, RPC abstraction, and lots of other things. http://www.gnuenterprise.org/ GPLv2
GNUe Forms Multi-platform user interface generator for database applications with support for various database backends. http://www.gnuenterprise.org/ GPLv2
GNUe Navigator Multi-platform menuing system. http://www.gnuenterprise.org/ GPLv3
GNUe Reports Report generator with support for various datasources and different output formats. http://www.gnuenterprise.org/ GPLv3
GNUjump SDLjump is a simple game where your goal is to keep jumping to upper falling platforms in order to avoid touching the lower part of the screen. http://www.gnu.org/software/sdljump/ GPLv2orlater
GNUnited Nations a build system for www.gnu.org translations. http://www.gnu.org/software/gnun/ X11
GPLv3orlater
GFDL
W3C
GNUstep A graphical, object oriented programming environment http://www.gnustep.org/ LGPL
GNUtls A library implementing TLS 1.0 and SSL 3.0 protocols http://www.gnu.org/software/gnutls/ LGPL
GPLv3orlater
GOOPS Object-oriented extension to 'guile' http://www.gnu.org/software/goops/goops.html GPLv2orlater
GSEGrafix a GNOME application which uses an anti-aliased GNOME canvas for creating scientific and engineering plots. http://www.gnu.org/software/gsegrafix/ GPLv3orlater
GFDL
GSL Routines for numerical computing http://www.gnu.org/software/gsl/ GPLv3orlater
GTK+ GNU toolkit for X windows development http://www.gtk.org/ LGPL
GTS Functions for 3D surfaces meshed with interconnected triangles http://gts.sourceforge.net/ GPLv2
GWorkspace GNUstep workspace and file manager http://www.gnustep.org/experience/GWorkspace.html GPLv2orlater
Gama Geodetic network adjustment program http://www.gnu.org/software/gama/ GPLv3orlater
Garpd GNU Gratuitous ARP Daemon https://savannah.gnu.org/projects/garpd GPLv2orlater
Gawk String manipulation language http://www.gnu.org/software/gawk/gawk.html GPLv2orlater
Gcal Is a program for calculating and printing calendars, and is the GNU implementation of the universally known cal and calendar programs. http://www.gnu.org/software/gcal/ GPLv2orlater
GPLv3orlater
Gcjwebplugin Browser plugin that executes Java applets http://www.nongnu.org/gcjwebplugin/ GPLv2orlater with exception
Gcompris Educational suite for children from 2 to 10 http://gcompris.net GPLv2orlater
Gcron Replacement for Vixie cron http://www.gnu.org/software/gcron GPLv2
Gdb GNU Debugger http://www.gnu.org/software/gdb/gdb.html GPLv2orlater
Gdbm Replacement for the 'dbm' and 'ndbm' libraries http://www.gnu.org/software/gdbm/gdbm.html GPLv2
Gengen A parameterized-text-generator generator based on a template http://www.lorenzobettini.it/software/gengen/index.php GPLv2orlater
Gengetopt Generates a C function that parses and validates command line options http://www.gnu.org/software/gengetopt/gengetopt.html GPLv3orlater
Gettext Tools to produce multi-lingual messages http://www.gnu.org/software/gettext/gettext.html GPLv3orlater
LGPLv2.1orlater
Gforth Free implementation of the ANS Forth language http://www.jwdt.com/~paysan/gforth.html GPLv2
Gfortran Fortran compiler http://gcc.gnu.org/ GPLv2orlater
Ggradebook Fully-featured GNU gradebook http://www.gnu.org/software/ggradebook/ GPLv2orlater
Gleem Library of 3D widgets http://web.media.mit.edu/~kbrussel/gleem/ GPLv2orlater
Gnats Bug tracking system http://www.gnu.org/software/gnats/ GPL
Gnatsweb Web interface to the GNU bug management system GPL
Gnochive GUI frontend for multiple archivers http://gnochive.sourceforge.net/ GPLv2orlater
Gnome The GNU desktop http://www.gnome.org/ GPLv2orlater
Gnotary Project to produce a digital notary service http://www.gnumed.net/gnotary/ GPLv2orlater
Gnotepad+ HTML and text editor http://gnotepad.sourceforge.net/ GPLv2orlater
Gnu-arch Revision control system http://www.gnu.org/software/gnu-arch GPLv2
Gnu-crypto Project to produce a full set of Java cryptographic tools http://www.gnu.org/software/gnu-crypto/ GPLv2orlater with library exception
GnuCAD 2 Unfinished project to write a free CAD system http://gnu-cad.sourceforge.net/ GPLv2
Gnuae Software to produce alternative energy systems http://www.senecass.com/software/gnuae/ GPLv2orlater
Gnubg Plays and analyzes backgammon games and matches http://www.gnu.org/software/gnubg/gnubg.html GPLv2orlater
Gnubiff Mail notification program http://gnubiff.sourceforge.net GPLv3orlater
Gnucomm GNU telecommunications project http://www.gnu.org/software/gnucomm/ GPLv2orlater
Gnuit Tools for simple, daily file and system management tasks http://www.gnu.org/software/gnuit/ GPLv2
GPLv3orlater
Gnulib GNU portability library http://www.gnu.org/software/gnulib/
Gnumach Microkernel of the GNU system http://www.gnu.org/software/hurd/microkernel/mach/gnumach.html GPLv2orlater
Gnumeric Math program intended to replace commercial spreadsheets http://www.gnome.org/projects/gnumeric/ GPLv2orlater
Gnunet Anonymous peer-to-peer file-sharing http://www.gnu.org/software/GNUnet/ GPLv2orlater
Gnupg (GPG) Complete implementation of the OpenPGP Internet standard http://www.gnu.org/software/gnupg/ GPLv3orlater
Gnupod Lets you use an iPod under GNU/Linux http://www.gnu.org/software/gnupod/ GPLv3orlater
Gnuradio Software to create digital radio signals http://www.gnu.org/software/gnuradio/ GPLv3orlater
Gnuschool Is a web application for educators, students, and school administrators. http://www.gnu.org/software/gnuschool/ GPLv3orlater
Gnushogi Japanese version of chess http://www.gnu.org/software/gnushogi GPLv2orlater
Gnuskies Project to create a free version of the xephem program http://www.gnu.org/software/gnuskies/gnuskies.html GPLv2orlater
Gnusound Multitrack sound editor for Gnome http://www.gnu.org/software/gnusound GPLv2orlater
Gnusysutils Planned group of utilities for system administrators http://savannah.gnu.org/projects/sysutils GPLv2orlater
Gnutrition Nutrition analysis software http://gnu.org/software/gnutrition GPLv2
GPLv3
Gnuzilla IceCat GNU version of popular web browser http://www.gnu.org/software/gnuzilla/ GPLv2orlater
LGPLv2.1orlater
MPL1.1
Goldwater Middleware component of the DotGNU project http://savannah.gnu.org/projects/dgee GPL
Goptical GNU Optical design and simulation library http://www.gnu.org/software/goptical/ GPLv3orlater
Gorm Graphic Object Relationship Modeler http://gnustep.org/experience/Gorm.html GPLv2orlater
Gpaint GNOME paint program http://www.gnu.org/software/gpaint/ GPLv3orlater
Gperf Generates a hash function http://www.gnu.org/software/gperf/gperf.html GPLv2
GPLv3orlater
Gprolog Prolog compiler http://gnu-prolog.inria.fr/ GPLv2
Greg Software testing framework http://www.gnu.org/software/greg/greg.html GPLv2orlater
Grep Finds lines that match entered patterns http://www.gnu.org/s/grep/ GPLv3orlater
Gretl Software for econometric analysis http://gretl.sourceforge.net/ GPLv2
Groff Document formatting system http://www.gnu.org/software/groff/groff.html GPLv2
Gtick Digital metronome http://www.antcom.de/gtick/ GPLv3orlater
Gtypist Typing tutor program http://www.gnu.org/software/gtypist/gtypist.html GPLv3orlater
Guile GNU extensibility library http://www.gnu.org/software/guile/guile.html LGPLv2.1orlater
Guile-dbi Guile database abstraction layer http://home.gna.org/guile-dbi/ GPLv2orlater
Guile-gnome Helps Scheme programmers develop visual applications http://www.gnu.org/software/guile-gnome/ GPLv2orlater
Guile-gtk Guile language bindings for Gtk+ version 1.2 http://www.gnu.org/software/guile-gtk/ GPLv2orlater
Gurgle Formerly the GNU Report Generator http://homepages.inf.ed.ac.uk/timc/gurgle/ GPLv2orlater
GPLv3orlater
Gv Frontend for ghostscript http://www.gnu.org/software/gv GPLv3orlater
Gvpe Secure vpn network among multiple nodes over an untrusted network http://savannah.gnu.org/projects/gvpe GPLv2orlater
Gxmessage GTK2-based xmessage clone. http://gnu.org/software/gxmessage
Gzip Compresses and decompresses files http://www.gnu.org/software/gzip GPLv2orlater
GPLv3orlater
HOpla Link between XML files and SQL databases GPLv2
Halifax Client applications suite for fax applications http://www.gnu.org/software/halifax GPLv2orlater
Health Hospital and Health Information System http://gnu.org/software/health GPLv3orlater
Hello GNU version of "Hello, world!" http://www.gnu.org/software/hello/hello.html GPLv3orlater
GPLv2orlater
Help2man Generates manual pages from program files http://www.gnu.org/software/help2man GPLv2orlater
Hp2xx Reads and converts HP-GL files to various formats http://www.gnu.org/software/hp2xx/hp2xx.html GPLv2orlater
Httptunnel Creates a data path in HTTP requests http://www.nocrew.org/software/httptunnel.html GPLv2
Hurd Project GNU's replacement for the Unix kernel http://www.gnu.org/software/hurd/ GPLv2orlater
Hyperbole Information and text management program http://www.gnu.org/software/hyperbole/hyperbole.html GPLv3orlater
Idutils Tools for indexing http://www.gnu.org/software/idutils GPLv2orlater
Ignuit A flash-card based memorization aid. http://gnu.org/software/ignuit GPLv3orlater
Indent C source beautifier http://www.gnu.org/software/indent/ GPLv2orlater
GPLv3
Inetutils Collection of common network programs http://www.gnu.org/software/inetutils/inetutils.html GPLv2orlater
GPLv3orlater
Intlfonts Fonts for all characters Emacs 20 can handle GPLv2orlater
Jacal Mathematics program http://people.csail.mit.edu/jaffer/JACAL GPLv2orlater
GPLv3
Java2html Translates Java files to HTML http://www.gnu.org/software/java2html/java2html.html GPLv2orlater
Jel Compiler for simple expressions into Java byte code http://galaxy.fzu.cz/JEL/ GPLv2
Jwhois Internet whois client http://www.gnu.org/software/jwhois/ GPLv3orlater
Less Display paginator http://www.gnu.org/software/less/ SimplePermissiveNonWarranty
LibCVS Provides CVS functionality in library form https://savannah.nongnu.org/projects/libcvs-perl/ Perl
Libc Library for use with GNU/Hurd and GNU/Linux http://www.gnu.org/software/libc/libc.html LGPL
Libcdio Encapsulates CD-ROM reading and control http://savannah.nongnu.org/projects/libcdio/ GPLv2
GPLv2orlater
Libextractor Extracts metadata information from files http://gnunet.org/libextractor/ GPLv2orlater
Libffcall Builds foreign function call interfaces in embedded interpreters http://savannah.gnu.org/projects/libffcall GPLv2orlater
Libgcrypt Cryptographic library http://www.gnupg.org LGPL
GPLv3
Libiconv Converts between character encodings http://www.gnu.org/software/libiconv/ LGPL
LGPLv2orlater
Libmicrohttpd GNU library http://gnunet.org/libmicrohttpd/ LGPLv2.1
Libsigsegv Library for handling page faults GPLv2orlater
Libtasn1 the ASN.1 library used by GnuTLS, GNU Shishi and some other packages. http://www.gnu.org/software/libtasn1/ GPLv3orlater
LGPLv2.1orlater
GFDL
Libtool Generic library support script http://www.gnu.org/software/libtool/libtool.html GPLv2
GPLv2orlater with exception
LGPLv2.1orlater
Libunistring a library provides functions for manipulating Unicode strings and for manipulating C strings according to the Unicode standard. http://www.gnu.org/software/libunistring/ GPLv3orlater
GFDL
LGPLv3orlater
Libxmi Library for rasterizing 2-D vector graphics http://www.gnu.org/software/libxmi/libxmi.html GPLv2
Lilypond Music typesetter http://www.lilypond.org/ GPLv3orlater
Liquidwar6 Liquid War 6 is a unique multiplayer wargame. http://www.gnu.org/software/liquidwar6 GPLv3orlater
Lsh Free implementation of the SSH protocol http://www.lysator.liu.se/~nisse/lsh/ GPLv2orlater
M4 Macro processor http://www.gnu.org/software/m4/m4.html GPLv3orlater
GPLv2orlater
MPFR Multiple-precision Floating-point library with correct rounding. http://www.gnu.org/software/mpfr LGPLv3orlater
Mailman Manages discussion lists http://www.gnu.org/software/mailman/ GPLv2orlater
Mailutils A set of libraries and programs for handling e-mail messages http://www.gnu.org/software/mailutils/mailutils.html GPLv3orlater
Make Generates executables and other non-source programs http://www.gnu.org/software/make/make.html GPLv2orlater
Marst Algol to C translator http://www.gnu.org/software/marst/marst.html GPLv3orlater
Maverik Virtual reality micro kernel http://aig.cs.man.ac.uk/maverik/ GPLv2
GPLv3orlater
Mc 2 Converts text documents into a vector space model http://www.cs.utexas.edu/users/jfan/dm/ GPLv2
Mcron Vixie cron replacement http://www.nongnu.org/mcron GPLv2orlater
Mcsim Simulation software for designing, analyzing and calibrating mathematical models http://www.gnu.org/software/mcsim/ GPLv2orlater
MediaGoblin A way to share your pictures with the world http://mediagoblin.org/ AGPLv3orlater
Melting Nearest-neighbor compilation of nucleic acid hybridation http://www.ebi.ac.uk/~lenov/meltinghome.html GPLv2orlater
Metahtml Programming language for the Web http://metahtml.sourceforge.net/ GPLv2orlater
Midnight Commander Unix file manager http://www.ibiblio.org/mc/ GPLv2
Mifluz Full text inverted index query library http://www.gnu.org/software/mifluz/ GPLv2
Mig Interface generator for the Hurd http://www.gnu.org/software/mig GPLv2
Miscfiles Collection of various files http://savannah.gnu.org/projects/miscfiles/ GFDL
Mit-scheme MIT/GNU Scheme programming language http://www.gnu.org/software/mit-scheme/ GPLv2orlater
Mll2html Converts a mailing lists file to an HTML file http://www.gnu.org/software/mll2html/mll2html.html GPLv2orlater
Motti Multiplayer, networked strategy game http://www.gnu.org/software/motti/ GPLv3orlater
Mtools Lets Unix systems work with DOS files http://www.gnu.org/software/mtools/intro.html GPLv3orlater
Mule Multilingual text editor for Emacs GPLv2orlater
Muse Emacs mode for publishing in various modes http://www.mwolson.org/projects/MuseMode.html GPLv3orlater
Nana Library for assertion checking and logging in GNU C/C++ http://www.gnu.org/software/nana/nana.html GPLv2orlater
Nano Pico clone for *NIX http://www.nano-editor.org/ GPLv3orlater
Nautilus File manager and graphical shell http://www.gnome.org/projects/nautilus/ GPLv2orlater
Ncurses Displays and updates text on text-only terminals http://dickey.his.com/ncurses/ncurses.html X11
Nettle Cryptographic library http://www.lysator.liu.se/~nisse/nettle/ GPLv2orlater
OMGCP 2 Free implementation of the Open Media Gateway Control Protocol http://www.gnu.no/directory/telephony/oMGCP.html LGPLv2orlater
Octal 2 Free digital sound workstation for Unix-like systems http://www.gnu.org/software/octal/ GPLv2
Octave High-level language for numerical computations http://www.gnu.org/software/octave/ GPLv2
GPLv3orlater
Oleo Lightweight spreadsheet program http://www.gnu.org/software/oleo/oleo.html GPLv2
Orgadoc Helps organize documentation http://savannah.nongnu.org/projects/orgadoc/ GPLv2orlater
Osip Library supporting the Session Initiation Protocol http://www.gnu.org/software/osip/ LGPL
PCB Designs printed circuit board layouts http://pcb.gpleda.org/ GPLv2
PHP GroupWare Groupware suite http://www.phpgroupware.org/ GPLv2orlater
GPLv3orlater
PIPS Converts data between formats http://ftp.gnu.org/gnu/pips/ GPLv2
PSPP Statistics package http://www.gnu.org/software/pspp/pspp.html GPLv3orlater
Panorama Framework for 3D graphics production http://panorama.sourceforge.net/ GPLv2
Paperclips Webserver and dynamic content container http://www.gnu.org/software/paperclips/ GPLv2
Parallel a shell tool for executing jobs in parallel using one or more computers http://www.gnu.org/software/parallel/ GPLv3orlater
Parted Manipulates disk partitions http://www.gnu.org/software/parted/parted.html GPLv3orlater
Patch Applies a patch to a file http://www.gnu.org/software/patch/patch.html GPLv2
Patchwork Utility for rapid patch development and submission http://savannah.nongnu.org/cvs/?group=epm GPLv2orlater
Paxutils Tool to manage file archives http://www.gnu.org/software/paxutils/paxutils.html GPLv2
Personal Expenses Manager Is a command line accounting program http://www.gnu.org/software/pem/ GPLv2
Phantom home Home automation system http://www.joethielen.com/phantom/home/ GPLv2orlater
Phantom security Home security system http://www.joethielen.com/phantom/security/ GPLv2orlater
Phpgrabcomics Retrieves and saves comics from the Web http://www.baravalle.it/phpGrabComics/ GPLv2orlater
Pies Program Invocation and Execution Supervisor http://www.gnu.org.ua/software/pies/ GPLv3orlater
Plotutils Plotting and graphics utilities http://www.gnu.org/software/plotutils/plotutils.html GPL
Polyxmass Mass spectrometric framework for simulation and analysis of mass spectrometric data of (bio-)polymers http://www.gnu.org/software/polyxmass GPLv2orlater
Prolog for Java an implementation of ISO Prolog as a Java library http://www.gnu.org/software/gnuprologjava/ GPLv3orlater
GFDL
LGPLv3orlater
Proto Tools to find function prototypes http://www.oualline.com/sw/index.html PublicDomain
Protoize Creates or removes prototypes from C code GPLv2orlater
Psychosynth an interactive modular soft-synth. http://www.psychosynth.com/index.php/Main_Page GPLv3orlater
Expat
Pth GNU Portable Threads library http://www.gnu.org/software/pth/pth.html LGPL
Ptx Index generator http://www.gnu.org/software/ptx/ptx.html GPLv2
Qexo XQuery to Java compiler http://www.gnu.org/software/qexo/ Kawa
Quagga Back-end software for the FSF's Directory of Free Software http://savannah.gnu.org/projects/gnulist/ GPLv2orlater
Queue Batch processing and local rsh replacement system http://savannah.gnu.org/projects/gnu-queue GPLv2orlater
RCS Version control and project management software http://www.gnu.org/software/rcs/ GPLv2orlater
RPGE an engine for 2D role playing games. http://www.gnu.org/software/rpge/ GPLv3orlater
GFDL
Radius Remote authentication and accounting system http://www.gnu.org/software/radius/radius.html GPLv3orlater
Readline Lets users edit command lines as they are typed in http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html GPLv2orlater
RefTeX a specialized package for support of labels, references, citations, and the indices in LaTeX. http://www.gnu.org/software/auctex/reftex.html GPLv3
Rottlog GNU log management utility. http://www.gnu.org/software/rottlog GPLv2orlater
GPLv3orlater
Rush Restricted User Shell with sophisticated configuration files. http://www.gnu.org/software/rush/ GPLv3orlater
SIP Witch a pure SIP-based office telephone call server that offers generic business telephone system features. http://www.gnu.org/software/sipwitch/ GPLv3orlater
SXML Defines and implements a mark-up language http://medialab.di.unipi.it/Project/SXML/ GPLv2orlater
Sather Object-oriented language http://savannah.gnu.org/projects/sather GPLv3orlater
Screen Runs separate screens on a single terminal http://www.gnu.org/software/screen/screen.html GPL
Sed A stream-oriented non-interactive text editor http://www.gnu.org/software/sed//sed.html GPLv3orlater
GPLv3
Serveez Server framework http://www.gnu.org/software/serveez/ GPLv2orlater
Shared Memory Manager access all shared memory http://www.gnu.org/software/shmm GPLv3orlater
Sharutils Creates and helps unpack shell archives http://www.gnu.org/software/sharutils/sharutils.html GPLv3orlater
Shishi Free implementation of the Kerberos 5 network security system http://www.gnu.org/software/shishi/ GPLv3orlater
Shtool The GNU portable shell tool http://www.gnu.org/software/shtool/ GPLv2orlater
Slib Portable scheme library http://www.swiss.ai.mit.edu/~jaffer/SLIB SimplePermissiveNonWarranty
SmartEiffel Eiffel compiler http://smarteiffel.loria.fr/index.html GPLv2
Snug Project to develop a free version of Java Swing http://www.rons.net.cn/snug.html
Sourceinstaller Graphical tool for source package configuration, installation, tracking and removal http://www.gnu.org/software/sourceinstall GPLv3orlater
Sovix PHP-based, semantic website revision system http://sovix.org/Main_page.php GPLv3orlater
GFDL
AGPLv3orlater
Spacechart Displays the stars in space in 3D http://spacechart.sourceforge.net/ GPLv2orlater
Speex Speech compression format http://www.speex.org/ Xiph
Spell Spell checker http://savannah.gnu.org/projects/spell/ GPLv2orlater
Src-highlite Turns source code into a file with syntax highlighting http://www.gnu.org/software/src-highlite/ GPLv2orlater
GPLv3orlater
Stow Manages installation process http://www.gnu.org/software/stow/ GPLv2orlater
Superopt Finds the shortest instruction sequence for a given function GPLv2orlater
Swbis Extensions to the POSIX packaging standard http://www.gnu.org/software/swbis/ GPLv3orlater
Talkfilters Translates English text into dialects http://www.hyperrealm.com/main.php?s=talkfilters GPLv2orlater
Termutils Programs for controlling terminals http://www.gnu.org/software/termutils/termutils.html GPLv2orlater
Texinfo Produces manuals, ASCII text, and on-line documentation http://www.gnu.org/software/texinfo/ GPLv3orlater
Thales IRC to MySQL gateway http://www.gnu.org/software/thales/ GPLv2orlater
The GNU Objective C Class Library The GNU Objective C Class Library (libobjects) is a library of general-purpose, non-graphical Objective C objects http://www.cs.rochester.edu/u/mccallum/libobjects/ GPLv2orlater
Time Reports the user, system, and real time used by a process http://www.gnu.org/software/time/time.html GPLv2orlater
ToutDoux Project manager http://www.gnu.org/software/toutdoux/ GPLv2orlater
Tramp Remote file editing software http://www.gnu.org/software/tramp/ GPLv3orlater
Units Unit conversion and calculation http://www.gnu.org/software/units/ GPLv2orlater
GPLv3orlater
Unrtf Converts from RTF to other formats http://www.gnu.org/software/unrtf/unrtf.html GPLv2orlater
Userv Security boundary tool http://www.chiark.greenend.org.uk/~ian/userv/ GPLv2
Uucp File copying program http://www.airs.com/ian/uucp.html GPLv2
VC-dwim a version-control-agnostic ChangeLog diff and commit tool. http://www.gnu.org/software/vc-dwim/ GPLv3orlater
GFDL
VCD Imager Free software (Super) video CD authoring solution http://www.vcdimager.org/ GPLv2orlater
Wdiff Front end to GNU 'diff' http://www.gnu.org/software/wdiff/ GPLv2orlater
WebSocket4J a WebSocket protocol implementation in Java. http://maarons.alwaysdata.net/software/GNU/WebSocket4J/ GPLv2orlater with exception
GFDL
Wget Retrieves files from the Web http://www.gnu.org/software/wget/ GPLv2orlater with exception
GPLv3orlater with exception
Which Prints out full path of execuatbles http://www.xs4all.nl/~carlo17/which/ GPLv3orlater
Window Maker Window manager for X Window System http://www.windowmaker.info/ GPLv2
Womb Repository for homeless code http://savannah.gnu.org/projects/womb/ GPLv2orlater
Xaos Real-time fractal zoomer http://xaos.sourceforge.net/index.php GPLv2orlater
Xboard Graphical chessboard http://www.gnu.org/software/xboard/ GPLv2orlater
GPLv3orlater
Xhippo Playlist manager http://www.gnu.org/software/xhippo/xhippo.html GPLv3orlater
Xlogmaster Monitors logfiles and devices http://www.gnu.org/software/xlogmaster/xlogmaster.html GPLv2orlater
Xmorph Image morphing program http://xmorph.sourceforge.net/ GPLv2
Xnee Records, distributes, and replays X11 protocol data http://www.gnu.org/software/xnee GPLv3orlater
Xorriso maps file objects http://gnu.org/software/xorriso/ GPLv3orlater
Zebra Implementation of routing protocols http://www.zebra.org/ GPLv2
Zile A light Emacs clone. http://www.gnu.org/software/zile/ GPLv3orlater

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