| | Description | Homepage | License | | 3dldf | package for three-dimensional drawing with MetaPost output | https://www.gnu.org/software/3dldf/ | GPLv3 |
| 8sync | Asynchronous programming for Guile | https://www.gnu.org/software/8sync/ | LGPLv3orlater |
| A2ps | Any to PostScript filter | http://www.gnu.org/software/a2ps | GPLv2orlater
GPLv3orlater |
| Acct | GNU system accounting utilities | http://www.gnu.org/software/acct/ | GPLv3orlater |
| Acm | Aerial combat simulation game | http://www.gnu.org/software/acm | GPLv2orlater |
| Activation | JavaBeans™ Activation Framework | https://www.gnu.org/software/classpathx/jaf/ | GPLv3 |
| Adns | Resolver library for C and C++ programs | https://www.gnu.org/software/adns/ | GPLv3orlater |
| Aetherspace | Project to produce a multiplayer game | http://www.gnu.org/software/aetherspace | AGPLv3 |
| Alive | Automatic login and keep-alive utility for Internet connections. | https://www.gnu.org/software/alive/ | GPLv3orlater |
| Anubis | Processes outgoing mail | https://www.gnu.org/software/anubis/ | GPLv3orlater |
| Apl | free version of the programming language APL | https://www.gnu.org/software/apl/ | GPLv3 |
| Archimedes | Software for designing and simulating submicron semiconductor devices | https://www.gnu.org/software/archimedes/ | GPLv3 |
| Aris | A formal logical proof program | https://www.gnu.org/software/aris/ | GPLv3orlater |
| Aroundme | Social networking and team interaction software | http://www.barnraiser.org/aroundme | GPLv3orlater |
| Artanis | GNU Artanis web application framework written in Guile Scheme | https://gnu.org/software/artanis/ | LGPLv3orlater |
| Aspell | Spell checker | http://aspell.net/ | LGPLv2.1 |
| Auctex | Integrated environment for editing LaTeX and TeX files | http://www.gnu.org/software/auctex/ | GPLv3orlater |
| Autoconf | Produces shell scripts which automatically configure source code | https://www.gnu.org/software/autoconf | GPLv2orlater
GPLv2 with exception
GPLv3orlater with exception |
| Autoconf-archive | collection of free autoconf macros | https://www.gnu.org/software/autoconf-archive/ | GPLv3orlater with exception |
| Autogen | Automated program and text generation | http://www.gnu.org/software/autogen/ | GPLv3orlater |
| Automake | Generates Makefile.in files | https://www.gnu.org/software/automake/ | GPLv2orlater |
| Avl | Library for balanced binary trees | http://adtinfo.org/ | GPLv3orlater
LGPLv3orlater |
| BPEL2oWFN | translates a web service expressed in BPEL into an oWFN | http://www.gnu.org/software/bpel2owfn/index.html | GPLv2orlater |
| Ballandpaddle | 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 | GPLv3orlater |
| Bash | The GNU Bourne-Again SHell | https://www.gnu.org/software/bash | GPLv3orlater |
| Bayonne | GNU telephony server | https://www.gnu.org/software/bayonne/ | GPLv2orlater |
| Bazaar | a friendly powerful distributed version control system. | http://bazaar.canonical.com/ | GPLv2orlater |
| Bc | Interactive algebraic language | https://www.gnu.org/software/bc/ | GPLv2orlater |
| Binutils | Collection of binary utilities | https://www.gnu.org/software/binutils/ | GPLv2orlater
GPLv2
LGPLv2
GPLv3 |
| Bison | Replacement for the parser generator 'yacc' | https://www.gnu.org/software/bison/ | GPLv2orlater |
| Bool | Utility for matching boolean queries in text | http://www.gnu.org/software/bool | GPLv3 |
| C-Graph | software for visualizing convolution and demonstrating the convolution theorem | http://www.gnu.org/software/c-graph | GPLv3orlater |
| CPPI | a cpp directive indenter. | http://www.gnu.org/software/cppi | GPLv3orlater |
| Calendula | Fund-raising/contact management software for non-profits | http://www.gnu.org/software/calendula/ | GPLv2orlater |
| Ccaudio | Library and software for manipulating audio data | https://www.gnu.org/software/ccaudio | GPLv3orlater
LGPLv3orlater |
| Ccd2cue | CCD sheet to CUE sheet converter | https://www.gnu.org/software/ccd2cue/ | GPLv3orlater
GFDLv1.3orlater |
| Ccide | C Language Decision Table Code Generator | http://twysf.users.sourceforge.net/ | GPLv3orlater |
| Ccrtp | RTP protocol stack of GNU Common C++ and the GNU project | https://www.gnu.org/software/ccrtp/ | GPLv2orlater |
| Ccscript | C++ class framework for creating a virtual machine execution system | https://www.gnu.org/software/ccscript/ | GPLv3orlater |
| Cfengine | Maintains configuration of a heterogenous UNIX network | http://www.gnu.org/software/cfengine | GPLv2orlater |
| Cflow | Charts control flow within source code | http://www.gnu.org/software/cflow/ | GPLv3orlater |
| Cfs-el | Frontend for CFS | http://savannah.gnu.org/projects/cfs-el | GPLv2orlater |
| Cgicc | a C++ class library for writing CGI applications | https://www.gnu.org/software/cgicc/ | LGPLv3orlater
GPLv2
GFDL |
| Checker | Finds memory errors at runtime | http://www.gnu.org/software/checker/ | GPLv2orlater |
| Chess | Chess game | https://www.gnu.org/software/chess/ | GPLv3orlater |
| Cim | Compiler for the programming language Simula | https://gnu.org/software/cim/ | GPLv2 |
| Classpath | Free core class libraries for the Java programming language | http://www.gnu.org/software/classpath/ | GPLv2orlater with exception
GPLv2orlater |
| Classpathx | Unfinished free implementation of the Java extension libraries | http://www.gnu.org/software/classpathx/ | GPLv2orlater with exception |
| Clisp | ANSI Common Lisp compiler, debugger, and interpreter | http://clisp.org/ | GPLv2 |
| Combine | Extensible file matching and filtering | http://www.gnu.org/software/combine/ | GPLv3orlater
GFDLv1.3orlater |
| Commoncpp | Highly portable C++ class library | https://www.gnu.org/software/commoncpp/ | GPLv2orlater |
| Complexity | Measure the complexity of C source | https://www.gnu.org/software/complexity | GPLv3orlater |
| Coreutils | Collection of basic file, shell and text manipulation utilities | https://www.gnu.org/software/coreutils/ | GPLv3orlater
GFDLv1.3orlater |
| Cpio | Archiver that handles various types of cpio and tar archives | http://www.gnu.org/software/cpio/ | GPLv3orlater |
| Cssc | Free clone of SCCS | https://www.gnu.org/software/cssc/ | GPLv3 |
| Cursynth | a polyphonic synthesizer that runs in the terminal | https://www.gnu.org/software/cursynth/ | GPLv3orlater |
| Dap | Statistics and graphics package | https://www.gnu.org/software/dap | GPLv2orlater |
| Datamash | Scriptable statistics and data calculation | http://www.gnu.org/software/datamash | GPLv3orlater |
| Ddd | Graphical front end for command line debuggers | https://www.gnu.org/software/ddd/ | GPLv3orlater |
| Ddrescue | Data recovery tool | https://www.gnu.org/software/ddrescue/ | GPLv2orlater |
| Dejagnu | Framework to test programs | https://gnu.org/software/dejagnu/ | GPLv3orlater |
| Denemo | Graphical music notation, front-end to GNU Lilypond | http://www.denemo.org/ | GPLv3orlater |
| Dia | GTK-based diagram drawing program | https://live.gnome.org/Dia | GPLv2orlater |
| Dico | a flexible modular implementation of DICT server (RFC 2229). | http://dico.software.gnu.org.ua/ | GPLv3orlater |
| 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 | https://gnu.org/software/diffutils/ | GPLv3orlater |
| Dionysus | a local machine search engine for universal constants and parameters of scientific and engineering relevance. | https://www.gnu.org/software/dionysus/ | GPLv3orlater |
| Direvent | A directory content watcher daemon | https://www.gnu.org/software/direvent/ | GPLv3 |
| Dismal | A major mode for GNU Emacs that implements a spreadsheet. | http://elpa.gnu.org/packages/dismal.html | GPLv3 |
| Dmd | Service manager that's a replacement for SysV-init | https://www.gnu.org/software/dmd/ | GPLv3 |
| Dominion | Multi-player role-playing simulation | http://savannah.gnu.org/projects/dominion/ | GPLv3orlater |
| Doscheck | Utility to ensure that source names are distinguishable | http://www.gnu.org/software/doschk/doschk.html | GPLv2orlater |
| Double Choco Latte | System for tracking bugs, changes, enhancements, and requests for software | http://dcl.sourceforge.net/ | GPLv2 |
| Dr. geo | Ann application to build interactive geometric sketches | http://drgeo.eu | GPLv2orlater |
| DynORM | Dynamic object-relation mapping library | https://dynorm.codeplex.com/ | GPLv3 |
| EPrints | Online information archiving system | http://www.gnu.org/software/eprints | GPLv2orlater |
| ERC | IRC client for Emacs | https://gnu.org/software/erc/ | GPLv3 |
| Easejs | Classical object-oriented framework for JavaScript | https://www.gnu.org/software/easejs/ | GPLv3orlater |
| Ed | A simple line editor | https://www.gnu.org/software/ed/ | GPLv3orlater |
| Edma | Modular development environment | http://www.gnu.org/software/edma/edma.html | LGPLv3orlater |
| Electric | An EDA tool | http://www.staticfreesoft.com/ | GPLv3orlater |
| Elib | Library of Emacs LISP functions | http://www.gnu.org/software/elib/elib.html | GPLv2 |
| Emacs | Extensible, real-time editor | https://www.gnu.org/software/emacs | GPLv3orlater
GFDLv1.3orlater |
| Emms | Emacs package to play multimedia files using external players | https://www.gnu.org/software/emms/ | GPLv3orlater |
| Enscript | Converts ASCII files to PostScript | http://www.gnu.org/software/enscript/ | GPLv2orlater
GPLv3orlater |
| Epsilon | Strongly-typed omega-order programming language | http://www.gnu.org/software/epsilon/ | GPLv2orlater |
| Fdisk | Is a libparted-based partitioning tool | http://www.gnu.org/software/fdisk/ | GPLv3orlater |
| Ferret | GNU data modeller | http://www.gnu.org/software/ferret/project/what.html | GPLv2orlater
GPLv3 |
| Findutils | Tools to find files and to operate on groups of files | http://www.gnu.org/software/findutils/findutils.html | GPLv3orlater |
| Finger 2 | Lets Unix users exchange information | http://www.gnu.org/software/finger/finger.html | GPLv2orlater |
| Fisicalab | educational application to solve physics problems | https://www.gnu.org/software/fisicalab/ | GPLv3orlater |
| Fltdj | PIM program | http://kpatel.x10host.com | GPLv2orlater |
| Foliot | a small and easy to use timekeeping application | https://www.gnu.org/software/foliot/ | GPLv3orlater |
| Fontopia | Console bitmap font editor | https://www.gnu.org/software/fontopia/ | GPLv3orlater |
| Fontutils | Scanned image, bitmap, outline font manipulation. | https://www.gnu.org/software/fontutils/ | GPLv3orlater |
| Freedink | Free enhancement of the Dink Smallwood game engine | https://www.gnu.org/software/freedink/ | GPLv3 |
| Freefont | Free UCS outline fonts | http://www.gnu.org/software/freefont/ | GPL
GPLv2orlater
GPLv3orlater |
| Freeipmi | Intelligent platform management system | https://www.gnu.org/software/freeipmi | GPLv3orlater |
| Freetalk | console based Jabber client | https://www.gnu.org/software/freetalk/ | GPLv3orlater |
| Fribidi | Free implementation of the Unicode Bidirectional (BiDi) Algorithm | http://fribidi.org/ | LGPLv2.1 |
| 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 | LGPLv3orlater
GPLv3orlater |
| GLUE | GNU Internet groupware project | http://www.gnu.org/software/glue/glue.html | |
| GMediaServer | A UPnP compatible media server. | https://www.gnu.org/s/gmediaserver/ | GPLv3 |
| GNAT | A complete Ada95 compilation system | http://gnu.org/software/gnat | GPLv3orlater |
| GNOWSYS | Hybrid database server with a kernel for semantic computing | http://www.gnu.org/software/gnowsys/ | GPLv2orlater |
| GNU Beacon | Simple date and category-driven Web publishing system | https://savannah.gnu.org/p/beacon/ | GPLv2orlater |
| GNU FM | GNU FM is free software for running music community websites. | http://gnu.org/s/fm | AGPLv3orlater |
| GNU Gnash | Flash Movie Player | http://www.gnu.org/software/gnash/ | GPLv3orlater |
| 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 Pascal | Pascal compiler of the GNU Project | http://www.gnu-pascal.de/gpc/h-index.html | GPLv2 |
| GNU SQL Server | Database management system | http://panda.ispras.ru/~gsql/ | GPLv2 |
| GNU Songanizer | Script to organize a directory containing ogg and mp3 files. | https://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 Teseq | a tool for analyzing files that contain control characters and terminal control sequences. | https://www.gnu.org/software/teseq/ | GPLv3orlater |
| GNU Zile | A text editor development kit. | https://www.gnu.org/software/zile | GPLv3orlater |
| GNU libmatheval | Library for evaluating mathematical expressions | http://www.gnu.org/software/libmatheval/ | GPLv3orlater |
| GNU sauce | Anti-spam server | http://www.gnu.org/software/sauce/ | GPLv2orlater |
| GNU.FREE | Internet voting system | https://www.gnu.org/software/free/ | 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 |
| GNUstep | A graphical, object oriented programming environment | http://www.gnustep.org/ | LGPL
GPLv3 |
| GOOPS | Object-oriented extension to 'guile' | https://www.gnu.org/software/goops/ | GPLv2orlater |
| GWorkspace | GNUstep workspace and file manager | http://www.gnustep.org/experience/GWorkspace.html | GPLv2orlater |
| Gama | Geodetic network adjustment program | https://www.gnu.org/software/gama | GPLv3orlater |
| Garpd | GNU Gratuitous ARP Daemon | https://savannah.gnu.org/projects/garpd | GPLv2orlater |
| Gawk | String manipulation language | https://www.gnu.org/software/gawk/ | GPLv3 |
| Gcal | Is a program for calculating and printing calendars, and is the GNU implementation of the universally known cal and calendar programs. | https://www.gnu.org/s/gcal/ | GPLv3orlater |
| Gcc | GNU Compiler Collection | https://gcc.gnu.org/ | GPLv3orlater with exception
LGPLv2.1orlater |
| Gcide | Comprehensive English Dictionary | http://gcide.gnu.org.ua/ | GPLv3orlater |
| Gcjwebplugin | Browser plugin that executes Java applets | http://www.nongnu.org/gcjwebplugin/ | GPLv2orlater with exception |
| Gcl | Compiler and interpreter for Common Lisp | https://www.gnu.org/software/gcl/ | Other |
| Gcompris | Educational suite for children from 2 to 10 | http://gcompris.net | GPLv3 |
| Gdb | GNU Debugger | https://www.gnu.org/software/gdb/ | GPLv2orlater
GPLv3orlater |
| Gdbm | Replacement for the 'dbm' and 'ndbm' libraries | https://gnu.org/software/gdbm | GPLv3 |
| 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 | GPLv3orlater |
| Gettext | Tools to produce multi-lingual messages | https://www.gnu.org/software/gettext | GPLv3orlater
LGPLv2.1orlater |
| Gfe | Graphical font editor | http://www.gnu.org/software/gfe/ | GPLv2orlater |
| Gforth | Free implementation of the ANS Forth language | https://www.gnu.org/software/gforth/ | GPLv3orlater |
| Gfortran | Fortran compiler | http://gcc.gnu.org/ | GPLv2orlater |
| Ggradebook | Fully-featured GNU gradebook | https://www.gnu.org/s/ggradebook/ | GPLv3orlater |
| Ghostscript | PostScript and PDF interpreter | http://gnu.org/software/ghostscript | AGPLv3orlater
AGPLv3 with exception
Other |
| Gleem | Library of 3D widgets | http://www.gnu.org/software/gleem/ | GPLv2orlater |
| Glib | Core library that forms the basis of GTK+ and GNOME | https://wiki.gnome.org/Projects/GLib | Other |
| Global | Source code tag system for C, C++, Java, and Yacc | https://www.gnu.org/software/global/ | GPLv3orlater |
| Glpk | GNU Linear Programming Kit | https://www.gnu.org/software/glpk/ | GPLv3orlater |
| Glue | the GNU groupware project | https://www.gnu.org/s/glue/ | GPLv2orlater |
| Gmp | The GNU Multiple Precision Arithmetic Library | https://gmplib.org/ | LGPLv3orlater
GPLv2orlater |
| Gnats | Bug tracking system | https://gnu.org/software/gnats/ | GPLv3 |
| Gnatsweb | Web interface to the GNU bug management system | https://savannah.gnu.org/projects/gnatsweb/ | GPL |
| Gneural Network | Gneural Network is the GNU package which implements a programmable neural network. | http://www.gnu.org/software/gneuralnetwork/ | GPLv3orlater |
| Gnochive | GUI frontend for multiple archivers | http://sourceforge.net/projects/gnochive/ | GPLv2orlater |
| Gnome | The GNU desktop | https://www.gnome.org/ | GPLv2orlater |
| Gnotary | Project to produce a digital notary service | https://savannah.gnu.org/projects/gnotary/ | GPLv2 |
| Gnotepad+ | HTML and text editor | http://gnotepad.sourceforge.net/ | GPLv2orlater |
| Gnu-arch | Revision control system | http://www.gnu.org/software/gnu-arch | GPLv2 |
| Gnu-c-manual | A reference manual of the C programming language as implemented by GCC | https://www.gnu.org/software/gnu-c-manual/ | GFDLv1.3orlater |
| Gnu-crypto | Project to produce a full set of Java cryptographic tools | http://www.gnu.org/software/gnu-crypto | GPLv2orlater with library exception |
| Gnu-pw-mgr | passwords manager | https://www.gnu.org/software/gnu-pw-mgr/ | GPLv3 |
| Gnu3dkit | 3D graphics rendering architecture | https://gnu.org/software/gnu3dkit/ | LGPLv2.1 |
| 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/ | GPLv3 |
| Gnuastro | Collection of tools for astronomical data analysis and manipulation | http://www.gnu.org/software/gnuastro/ | GPLv3 |
| Gnubatch | an advanced batch scheduling system for GNU. | https://gnu.org/software/gnubatch/ | GPLv3orlater
GFDL |
| Gnubg | Plays and analyzes backgammon games and matches | http://www.gnubg.org/ | GPLv3 |
| Gnubiff | Mail notification program | http://gnubiff.sourceforge.net/ | GPLv3orlater |
| Gnubik | 3D Rubik's cube game | https://www.gnu.org/software/gnubik/ | GPLv3orlater |
| Gnucap | A general purpose circuit simulator | https://www.gnu.org/software/gnucap/ | GPLv3 |
| Gnucash | Personal and small business money-management software | https://www.gnucash.org/ | GPLv2orlater |
| Gnucobol | Free COBOL compiler and runtime | https://www.gnu.org/software/gnucobol/ | GPLv2orlater
LGPLv2.1orlater |
| Gnucomm | GNU telecommunications project | http://www.gnu.org/software/gnucomm/ | GPLv2orlater |
| Gnudos | A software library to help new GNU system users | https://gnu.org/software/gnudos/ | GPLv3orlater |
| Gnugo | Plays the game of Go | https://www.gnu.org/software/gnugo/ | GPLv2
GPLv3 |
| Gnuit | Tools for simple, daily file and system management tasks | http://www.gnu.org/software/gnuit/ | GPLv2
GPLv3orlater |
| Gnujump | GNUjump 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/gnujump/ | GPLv3orlater |
| Gnukart | Racing game | http://www.gnu.org/software/gnukart/ | GPLv2orlater |
| Gnulib | GNU portability library | http://www.gnu.org/software/gnulib/ | |
| Gnumach | Microkernel of the GNU system | https://www.gnu.org/software/hurd/microkernel/mach/gnumach.html | GPLv2orlater |
| Gnumed | Software for a paperless medical practice | http://www.gnumed.org | GPLv2 |
| Gnumeric | Math program intended to replace commercial spreadsheets | http://www.gnome.org/projects/gnumeric/ | GPLv2orlater |
| Gnump3d | A light-weight audio server | http://www.gnu.org/software/gnump3d/ | GPLv2orlater |
| Gnun | a build system for www.gnu.org translations. | https://www.gnu.org/software/gnun/ | X11
GPLv3orlater
GFDL
W3C |
| Gnunet | Anonymous peer-to-peer file-sharing | https://gnunet.org/ | GPLv3orlater |
| Gnupg | Complete implementation of the OpenPGP Internet standard | https://www.gnupg.org/ | GPLv3orlater |
| Gnupod | Lets you use an iPod under GNU/Linux | http://www.gnu.org/software/gnupod/ | GPLv3orlater |
| Gnuprologjava | an implementation of ISO Prolog as a Java library | http://www.gnu.org/software/gnuprologjava | GPLv3orlater
GFDL
LGPLv3orlater |
| Gnuradio | toolkit for implementing software radios | http://gnuradio.org/ | GPLv3orlater |
| Gnurobots | Real-time game | https://www.gnu.org/software/gnurobots/ | GPLv3 |
| Gnus | mail/news client in Emacs | http://www.gnus.org/ | GPLv3orlater |
| Gnuschool | Is a web application for educators, students, and school administrators. | http://www.gnu.org/software/gnuschool/ | GPLv3orlater |
| Gnushogi | Japanese version of chess | https://www.gnu.org/software/gnushogi | GPLv3orlater |
| 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 | https://www.gnu.org/software/gnusound/ | GPLv2orlater |
| Gnuspeech | a complete articulatory speech synthesis system | https://www.gnu.org/software/gnuspeech/ | GPLv3orlater |
| Gnuspool | a spooling system which can support any type of printer and printer interface. | https://www.gnu.org/software/gnuspool/ | GPLv3orlater |
| Gnusysutils | Planned group of utilities for system administrators | http://savannah.gnu.org/projects/sysutils | GPLv2orlater |
| Gnutrition | Nutrition analysis software | http://gnu.org/software/gnutrition | GPLv3orlater |
| Goldwater | Middleware component of the DotGNU project | http://www.gnu.org/software/goldwater | 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 | GPLv3orlater |
| Gpaint | GNOME paint program | https://www.gnu.org/software/gpaint | GPLv3orlater |
| Gperf | a perfect hash function generator | https://www.gnu.org/software/gperf/ | GPLv3orlater |
| Gprolog | Prolog compiler | http://www.gprolog.org/ | GPLv2orlater
LGPLv3orlater |
| Greg | Software testing framework | https://www.gnu.org/software/greg/ | GPLv2orlater |
| Grep | Finds lines that match entered patterns | https://www.gnu.org/software/grep | GPLv3orlater |
| Gretl | Statistical analysis of economic data (econometrics) | http://gretl.sourceforge.net/ | GPLv3orlater |
| Groff | Document formatting system | http://www.gnu.org/software/groff/groff.html | GPLv2 |
| Grub | GNU GRand Unified Bootloader | https://www.gnu.org/software/grub/ | GPLv3orlater |
| Gsasl | SASL network authentication library | http://www.gnu.org/software/gsasl/ | GPLv3orlater |
| Gsegrafix | a GNOME scientific and engineering plotting program | https://www.gnu.org/software/gsegrafix/ | GPLv3orlater
GFDL |
| Gsl | Routines for numerical computing | http://www.gnu.org/software/gsl/ | GPLv3orlater |
| Gsrc | GNU Source Release Collection | http://www.gnu.org/software/gsrc | GPLv3orlater
SimplePermissiveNonWarranty |
| Gss | Implementation of the Generic Security Service API | https://www.gnu.org/software/gss/ | GPLv3orlater |
| Gtick | Digital metronome | http://www.antcom.de/gtick/ | GPLv3orlater |
| Gtk+ | Cross-platform toolkit for creating graphical user interfaces | http://www.gtk.org/ | Other |
| Gtkeyboard | Graphical keyboard | http://opop.nols.com/gtkeyboard.html | GPLv2orlater |
| Gtypist | Typing tutor program | https://www.gnu.org/software/gtypist | GPLv3orlater |
| Guile | GNU extensibility library | https://www.gnu.org/software/guile | LGPLv3orlater |
| Guile-SDL | Guile bindings for various SDL libraries | https://www.gnu.org/software/guile-sdl/ | GPLv3orlater |
| 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 |
| Guile-ncurses | A library for interfacing GNU Guile with ncurses for the creation of textual user interfaces. | http://www.gnu.org/software/guile-ncurses/ | LGPLv3orlater |
| Guile-opengl | OpenGL bindings for GNU Guile | https://gnu.org/s/guile-opengl | LGPLv3orlater |
| Guile-rpc | pure Scheme implementation of XDR and ONC RPC for Guile | https://www.gnu.org/software/guile-rpc/ | GPLv3 |
| Guix | GNU Package Manager | https://gnu.org/software/guix | GPLv3orlater |
| Gurgle | Formerly the GNU Report Generator | http://homepages.inf.ed.ac.uk/timc/gurgle/ | 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 | GPLv3 |
| Gxmessage | GTK-based xmessage clone. | http://gnu.org/software/gxmessage | |
| Gzip | Compresses and decompresses files | http://www.gnu.org/software/gzip | GPLv2orlater
GPLv3orlater |
| Halifax | Client applications suite for fax applications | https://gnu.org/software/halifax | GPLv2orlater |
| Health | Hospital and Health Information System | http://health.gnu.org/ | GPLv3orlater |
| Hello | GNU greeting package | https://www.gnu.org/software/hello/ | GPLv3orlater |
| Help2man | Generates manual pages from program files | https://www.gnu.org/software/help2man | GPLv3 |
| 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 | https://www.gnu.org/software/hurd | GPLv2orlater |
| Hyperbole | Information and text management program | https://www.gnu.org/software/hyperbole/ | GPLv3orlater |
| INFOTOPO | Programs for Information Topology Data Analysis Information Topology | https://github.com/pierrebaudot/INFOTOPO | GPL |
| IceCat | GNUzilla IceCat is the GNU version of Mozilla Firefox | https://www.gnu.org/software/gnuzilla/ | GPL
LGPL
MPL |
| IceCat/GNU LibreJS | Blocks javascript that is both non-trivial and non-free | https://www.gnu.org/software/librejs/ | GPLv3orlater |
| IceCatMobile | IceCatMobile is the lightweight version of the GNU IceCat browser. | https://www.gnu.org/software/gnuzilla/ | GPL
LGPL
MPL
MPLv2.0 |
| Idutils | Tools for indexing | https://www.gnu.org/s/idutils | GPLv3orlater |
| Ignuit | A flash-card based memorization aid. | http://gnu.org/software/ignuit | GPLv3orlater |
| Indent | C language source code formatting program | http://www.gnu.org/software/indent/ | GPLv3 |
| Inetutils | Collection of common network programs | https://www.gnu.org/software/inetutils/ | GPLv3orlater |
| Intlfonts | Fonts for all characters Emacs 20 can handle | http://gnu.org/software/intlfonts | GPLv2orlater |
| Jacal | Mathematics program | http://people.csail.mit.edu/jaffer/JACAL | GPLv2orlater
GPLv3 |
| Jel | Compiler for simple expressions into Java byte code | https://gnu.org/software/jel/ | GPLv3orlater |
| Jtw | A programming language createdto simplify the process of learning how to program in Java | https://www.gnu.org/software/jtw/ | GPLv3orlater |
| Jwhois | Internet whois client | http://www.gnu.org/software/jwhois/ | GPLv3orlater |
| Kawa | Featureful scheme implementation | https://www.gnu.org/software/kawa/ | X11
GPLv2orlater |
| Leg | Libraries and Engines for Games | https://www.gnu.org/software/leg/ | GPLv2orlater |
| Less | Display paginator | https://www.gnu.org/software/less/ | SimplePermissiveNonWarranty
GPLv3orlater |
| Libc | Library for use with GNU/Hurd and GNU/Linux | https://www.gnu.org/software/libc/ | LGPL |
| Libcdio | CD-ROM access library | https://www.gnu.org/software/libcdio/ | GPLv3orlater |
| Liberty-eiffel | Compiler for the Eiffel programming language | http://www.liberty-eiffel.org/ | LGPLv2.1orlater |
| Libextractor | Extracts metadata information from files | https://www.gnu.org/software/libextractor/ | GPLv3orlater
GFDLv1.3orlater |
| Libffcall | Builds foreign function call interfaces in embedded interpreters | http://savannah.gnu.org/projects/libffcall | GPLv2orlater |
| Libgcrypt | Cryptographic library | https://www.gnu.org/software/libgcrypt/ | LGPLv2.1orlater
GPLv2orlater |
| Libiconv | Converts between character encodings | https://gnu.org/software/libiconv/ | LGPL
LGPLv2orlater
GPLv3orlater |
| Libidn | Internationalized string preparation library | https://www.gnu.org/software/libidn/ | GPLv3orlater
LGPLv2.1orlater
LGPLv2.1 |
| Libmicrohttpd | C library implementing an HTTP 1.1 server | http://www.gnu.org/software/libmicrohttpd/ | LGPLv2.1 |
| Libsigsegv | Library for handling page faults | http://www.gnu.org/software/libsigsegv/ | GPLv2orlater |
| Libtasn1 | the ASN.1 library used by GnuTLS, GNU Shishi and some other packages. | https://www.gnu.org/s/libtasn1/ | GPLv3orlater
LGPLv2.1orlater
GFDL |
| Libtool | Generic library support script | http://www.gnu.org/software/libtool | GPLv2
GPLv2orlater with exception
LGPLv2.1orlater |
| Libunistring | Unicode string library | https://www.gnu.org/software/libunistring/ | LGPLv2orlater
LGPLv3orlater
GPLv3orlater |
| Libxmi | Library for rasterizing 2-D vector graphics | http://www.gnu.org/software/libxmi | GPLv2 |
| Lightning | Generates assembly language code at run-time | https://www.gnu.org/software/lightning/ | LGPLv3orlater |
| Lilypond | Music typesetter | http://www.lilypond.org/ | GPLv3orlater |
| Linux-libre | UNIX-like monolithic kernel liberated and adopted by the GNU system | http://linux-libre.fsfla.org | GPLv2 |
| Liquidwar6 | Liquid War 6 is a unique multiplayer wargame. | https://www.gnu.org/software/liquidwar6/ | GPLv3orlater |
| Lsh | Free implementation of the SSH protocol | http://www.gnu.org/software/lsh/ | GPLv2orlater |
| M4 | Macro processor | https://www.gnu.org/s/m4/ | GPLv3orlater
GPLv2orlater |
| Macchanger | Is a utility to manipulate a MAC address | https://www.gnu.org/software/macchanger | GPLv2orlater
GPLv3 |
| Mailman | Manages discussion lists | https://www.gnu.org/software/mailman/ | GPLv2orlater |
| Mailutils | Utilities and library for reading and serving mail | http://mailutils.org/ | GPLv3orlater
LGPLv3orlater |
| Make | Generates executables and other non-source programs | https://www.gnu.org/software/make/ | GPLv3orlater |
| Marst | Algol to C translator | https://www.gnu.org/software/marst/ | GPLv3orlater |
| Maverik | Virtual reality micro kernel | https://www.gnu.org/software/maverik/ | GPLv2
GPLv3orlater |
| Mc | Unix file manager | http://www.midnight-commander.org/ | GPLv3orlater |
| Mcron | Vixie cron replacement | https://www.gnu.org/software/mcron/ | GPLv3orlater |
| Mcsim | Simulation software for designing, analyzing and calibrating mathematical models | https://www.gnu.org/software/mcsim/ | GPLv3orlater |
| Mdk | Emulator and development environment for Knuth's MIX computer | https://www.gnu.org/software/mdk/ | GPLv3 |
| Mediagoblin | A way to share your media with the world | http://mediagoblin.org/ | AGPLv3orlater |
| Melting | Nearest-neighbor compilation of nucleic acid hybridation | https://www.ebi.ac.uk/biomodels/tools/melting/ | GPLv2orlater |
| Metahtml | Programming language for the Web | http://metahtml.sourceforge.net/ | GPLv2orlater |
| Mifluz | Full text inverted index query library | https://www.gnu.org/software/mifluz/ | GPLv3 |
| Mig | Interface generator for the Hurd | http://www.gnu.org/software/mig | GPLv2 |
| Miscfiles | Collection of various files | https://www.gnu.org/software/miscfiles | GFDL |
| Mit-scheme | MIT/GNU Scheme programming language | https://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 |
| Moe | A powerful and user-friendly text editor | https://www.gnu.org/software/moe | GPLv3orlater |
| Motti | Multiplayer, networked strategy game | https://www.gnu.org/software/motti/ | GPLv3orlater |
| Mpc | C library for the arithmetic of complex numbers with arbitrarily high precision and correct rounding of the result | http://mpc.multiprecision.org/ | LGPLv3orlater |
| Mpfr | Multiple-precision Floating-point library with correct rounding. | http://www.mpfr.org/ | LGPLv3orlater |
| Mtools | Lets Unix systems work with DOS files | http://www.gnu.org/software/mtools | GPLv3orlater |
| Muse | an authoring and publishing environment for Emacs | https://gnu.org/s/emacs-muse/ | GPLv3orlater |
| NMIS | Powerful Network Performance Management Software | http://www.opmantek.com | |
| Nana | Library for assertion checking and logging in GNU C/C++ | https://savannah.gnu.org/projects/nana/ | BSD 2Clause |
| Nano | Pico clone for *NIX | http://www.nano-editor.org/ | GPLv3orlater |
| Nano-archimedes | a quantum mechanical simulator which implements the single-body Wigner Monte Carlo method | http://www.nano-archimedes.com/ | GPLv3orlater |
| Nautilus | file manager for the GNOME desktop | https://wiki.gnome.org/Apps/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/ | LGPLv3orlater
GPLv2
GPLv3 |
| OASIS | A Novel GWAS Analysis Method | https://github.com/dr-saeed/OASIS | GPLv3orlater |
| Ocrad | OCR program based on feature extraction | https://www.gnu.org/software/ocrad | GPLv2orlater |
| Octal 2 | Free digital sound workstation for Unix-like systems | http://www.gnu.org/software/octal/ | GPLv2 |
| Octave | High-level language for numerical computations | https://www.gnu.org/software/octave/ | GPLv3orlater |
| Oleo | Lightweight spreadsheet program | http://www.gnu.org/software/oleo/oleo.html | GPLv2 |
| Orca | Screen reader for Gnome | https://wiki.gnome.org/Projects/Orca | LGPLv2.1orlater |
| Org | Outline-based notes management and organizer for Emacs | http://orgmode.org/ | GPLv3orlater |
| Orgadoc | Helps organize documentation | https://www.gnu.org/software/orgadoc/ | GPLv2orlater |
| Osip | Library supporting the Session Initiation Protocol | https://www.gnu.org/software/osip/ | LGPL |
| PHP Class Wrapper for Stanford Part of Speech Tagger | A PHP class for accessing Stanford's Java based Part of Speech Tagger | http://charleshays.com/php-class-wrapper-for-stanford-part-of-speech-tagger/ | |
| PIPS | Converts data between formats | http://ftp.gnu.org/gnu/pips/ | GPLv2 |
| Panorama | Framework for 3D graphics production | http://www.gnu.org/software/panorama | 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 | https://www.gnu.org/s/parallel/ | GPLv3orlater |
| Parted | Manipulates disk partitions | https://www.gnu.org/software/parted | GPLv3orlater |
| Patch | Applies a patch to a file | http://www.gnu.org/software/patch/ | GPLv2 |
| Patchwork | Utility for rapid patch development and submission | http://www.gnu.org/software/patchwork/ | GPLv2orlater |
| Paxutils | Tool to manage file archives | http://www.gnu.org/software/paxutils/paxutils.html | GPLv2 |
| Pcb | Printed Circuit Board layout tool | http://pcb.geda-project.org/ | GPLv2orlater |
| Pem | GNU Personal Expenses Manager | http://www.gnu.org/software/pem/ | GPLv3orlater |
| Pexec | Execute commands or shell scripts in parallel on a local or remote host | http://www.gnu.org/software/pexec/ | GPLv3orlater |
| Phantom home | Home automation system | https://www.gnu.org/software/phantom home/ | GPLv2orlater |
| Phantom security | Home security system | http://www.gnu.org/software/phantom.security/ | GPLv2orlater |
| Phpgrabcomics | Retrieves and saves comics from the Web | http://www.baravalle.it/phpGrabComics/ | GPLv2orlater |
| Phpgroupware | Groupware suite | http://savannah.gnu.org/projects/phpgroupware/ | GPLv2orlater
GPLv3orlater |
| Pies | Program Invocation and Execution Supervisor | http://www.gnu.org.ua/software/pies/ | GPLv3orlater |
| Pipo | A GNU Bulletion Board System | http://www.gnu.org/software/pipo | GPLv2orlater |
| Plotutils | Plotting utilities and library | https://www.gnu.org/software/plotutils/ | GPL |
| Poc | manages smartcard passwords | http://www.gnu.org/software/poc/poc.html | GPLv2orlater |
| Polyxmass | Mass spectrometric framework for simulation and analysis of mass spectrometric data of (bio-)polymers | http://www.gnu.org/software/polyxmass | GPLv2orlater |
| PowerGuru | Powerguru is a a monitoring, data logging, and remote control application for power generation products used for renewable energy. | http://www.gnu.org/software/powerguru/ | GPLv2orlater |
| Proto | Tools to find function prototypes | http://www.oualline.com/sw/index.html | PublicDomain |
| Proxyknife | Validate free proxies for users behind firewalls | http://www.gnu.org/software/proxyknife | GPLv3orlater |
| Pspp | Statistics package | https://www.gnu.org/s/pspp/ | GPLv3orlater |
| 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 |
| Pyconfigure | Configure and install Python software the GNU way | https://www.gnu.org/software/pyconfigure | GPLv3orlater
SimplePermissiveNonWarranty |
| Qexo | XQuery to Java compiler | http://gnu.org/software/qexo | Kawa |
| Queue | Batch processing and local rsh replacement system | http://www.gnu.org/software/gnu-queue/ | GPLv2orlater |
| R | a language and environment for statistical computing and graphics. | http://www.r-project.org/ | GPLv2orlater
LGPLv2.1
LGPLv2.1orlater |
| Radius | Remote authentication and accounting system | http://www.gnu.org/software/radius/radius.html | GPLv3orlater |
| Rcs | Version control and project management software | https://www.gnu.org/software/rcs/ | GPLv3orlater |
| Readline | Lets users edit command lines as they are typed in | https://cnswww.cns.cwru.edu/php/chet/readline/rltop.html | GPLv3orlater |
| Recutils | Tools and libraries to access human-editable text-based databases | https://www.gnu.org/software/recutils | GPLv3orlater |
| RefTeX | a specialized package for support of labels, references, citations, and the indices in LaTeX. | http://www.gnu.org/software/auctex/reftex.html | GPLv3 |
| Remotecontrol | GNU remotecontrol is a web application serving as a management tool for multiple IP enabled HVAC thermostats (device), and other Building Automation devices. The purpose of GNU remotecontrol is to read from and write to multiple IP enabled thermostats. | https://www.gnu.org/software/remotecontrol/ | AGPLv3orlater |
| Ring | Decentralized and encrypted audio/video/text communication software building on SIP | https://ring.cx | GPLv3orlater |
| RosarioSIS | Student Information System | https://www.rosariosis.org/ | GPLv2 |
| Rottlog | GNU log management utility. | http://www.gnu.org/software/rottlog | GPLv2orlater
GPLv3orlater |
| Rpge | an engine for 2D role playing games. | https://www.gnu.org/software/rpge/ | GPLv3orlater
GFDL |
| Rush | Restricted User Shell with sophisticated configuration files. | http://puszcza.gnu.org.ua/software/rush/ | GPLv3orlater |
| SXML | Defines and implements a mark-up language | http://www.gnu.org/software/sxml/ | GPLv2orlater |
| Sather | Object-oriented language | https://www.gnu.org/software/sather/ | GPLv3orlater |
| Scm | R5RS Scheme implementation | https://people.csail.mit.edu/jaffer/SCM | LGPL |
| Screen | Multi-screen window manager | https://www.gnu.org/software/screen | GPLv3orlater |
| Sed | A stream-oriented non-interactive text editor | https://www.gnu.org/software/sed/ | GPLv3orlater |
| Serveez | Server framework | https://www.gnu.org/software/serveez/ | GPLv3orlater |
| Servletapi | An extensible framework for building web applications. | https://www.gnu.org/software/classpathx/ | GPLv3 |
| Sharutils | Creates and helps unpack shell archives | https://www.gnu.org/s/sharutils/ | GPLv3orlater |
| Shellutils | Command line utilities | https://www.gnu.org/software/coreutils/coreutils.html | GPLv2orlater |
| Shishi | Free implementation of the Kerberos 5 network security system | https://www.gnu.org/s/shishi/ | GPLv3orlater |
| Shmm | access all shared memory | http://gnu.org/software/shmm | GPLv3orlater |
| Shtool | The GNU portable shell tool | http://www.gnu.org/software/shtool/ | GPLv2orlater |
| Sipwitch | a pure SIP-based office telephone call server that offers generic business telephone system features. | https://www.gnu.org/s/sipwitch/ | GPLv3orlater |
| Slib | Portable scheme library | https://people.csail.mit.edu/jaffer/SLIB | SimplePermissiveNonWarranty |
| Smalltalk | Implementation of the Smalltalk object oriented language | http://smalltalk.gnu.org/ | GPLv2orlater |
| Smarteiffel | Eiffel compiler | http://smarteiffel.loria.fr/ | GPLv2 |
| Social | GNU social implements the OStatus standard for decentralized social networking. | https://gnu.io/social/ | AGPLv3orlater |
| Solfege | Eartraining program for GNOME | https://www.gnu.org/software/solfege/ | GPLv2orlater
GPLv3orlater |
| Sourceinstall | 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://savannah.gnu.org/projects/sovix/ | GPLv3orlater
GFDL
AGPLv3orlater |
| Spacechart | Displays the stars in space in 3D | http://www.gnu.org/software/spacechart/ | GPLv2orlater |
| Speex | Speech compression format | http://www.gnu.org/software/speex/ | Xiph |
| Spell | Spell checker | http://savannah.gnu.org/projects/spell/ | GPLv2orlater |
| Sqltutor | Interactive web based tool for learning SQL by examples | http://www.gnu.org/software/sqltutor/ | GPLv3orlater |
| 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 | http://gnu.org/software/superopt | 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 |
| Tar | Creates tar archives | https://www.gnu.org/software/tar/ | GPLv3orlater |
| Termcap | A library for sending terminal control codes | http://www.gnu.org/software/termutils/ | 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 |
| Texmacs | Scientific text editor | http://www.texmacs.org/ | GPLv3 |
| Textutils | Text utilities | https://www.gnu.org/software/textutils/ | GPLv2orlater |
| Thales | doctest-like system for GNU Guile | https://www.gnu.org/software/thales | GPLv3 |
| 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 |
| The mneme project | a constituent management system for nonprofits | http://themnemeproject.org/ | GPLv3 |
| Time | Reports the user, system, and real time used by a process | https://www.gnu.org/software/time/ | GPLv3orlater |
| ToutDoux | Project manager | http://www.gnu.org/software/toutdoux/ | GPLv2orlater |
| Tramp | Remote file editing software | http://www.gnu.org/software/tramp/ | GPLv3orlater |
| Trueprint | Pretty-print C sources and other plain text to PostScript | https://www.gnu.org/software/trueprint/ | GPLv2 |
| Unifont | Unicode font and utilities | http://www.unifoundry.com | GPLv3orlater
GPLv2orlater |
| Units | Unit conversion and calculation | https://www.gnu.org/software/units/ | GPLv3orlater |
| Unrtf | Converts from RTF to other formats | http://www.gnu.org/software/unrtf/unrtf.html | GPLv3 |
| Userv | Security boundary tool | http://www.gnu.org/software/userv/ | GPLv2orlater |
| Uucp | File copying program | https://www.gnu.org/software/uucp/ | GPLv2 |
| VCD Imager | Free software (Super) video CD authoring solution | https://www.gnu.org/software/vcdimager/ | GPLv2orlater |
| Vc-dwim | a version-control-agnostic ChangeLog diff and commit tool. | https://www.gnu.org/software/vc-dwim/ | GPLv3orlater |
| Vera | V.E.R.A. Virtual Entity of Relevant Acronyms | https://www.gnu.org/software/vera/ | GFDL |
| Vmslib | GNU vmslib is a bunch of files and small routines that can help people to port GNU programs to VMS | http://www.gnu.org/software/vmslib/ | GPLv2orlater |
| W3 | Fully customizable, largely undocumented web browser for Emacs | http://elpa.gnu.org/packages/w3.html | GPLv2 |
| Wb | Disk based, sorted associative array C library | http://people.csail.mit.edu/jaffer/WB | GPLv2orlater with exception
LGPLv3orlater |
| Wdiff | Front end to GNU 'diff' | https://www.gnu.org/software/wdiff/ | GPLv3 |
| WebSocket4J | a WebSocket protocol implementation in Java. | http://gnu.org/software/websocket4j | GPLv2orlater with exception
GFDL |
| Wget | Retrieves files from the Web | https://www.gnu.org/software/wget/ | GPLv3orlater with exception |
| Which | Prints out full path of execuatbles | http://carlowood.github.io/which/index.html | GPLv3orlater |
| Window Maker | Window manager for X Window System | http://windowmaker.org/ | GPLv2orlater |
| Womb | Repository for homeless code | http://savannah.gnu.org/projects/womb/ | GPLv2orlater |
| Xaos | Real-time fractal zoomer | http://matek.hu/xaos/ | GPLv2orlater |
| Xboard | Graphical chessboard | https://www.gnu.org/software/xboard/ | GPLv3orlater |
| Xhippo | Playlist manager | https://www.gnu.org/software/xhippo/ | GPLv3orlater |
| Xlogmaster | Monitors logfiles and devices | https://www.gnu.org/software/xlogmaster/ | GPLv3orlater |
| Xnee | Records, distributes, and replays X11 protocol data | https://www.gnu.org/software/xnee | GPLv3orlater |
| Xorriso | maps file objects | https://gnu.org/s/xorriso/ | GPLv3orlater |
| Zebra | Implementation of routing protocols | http://gnu.org/software/zebra | GPLv2 |
