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 DescriptionHomepageLicenseGNU?
APNG Assemblerassemble APNG animation from PNG/TGA image sequencehttps://sourceforge.net/projects/apngasmOther 
APNG Optimizeroptimize APNG animated imageshttp://apng.sourceforge.netOther 
APQAda95 Database Libraryhttp://web.archive.org/web/20110609012236/http://framework.kow.com.br/Other
GPLv2orlater
 
APQ PostgreSQLPostgreSQL impementation for the APQ database bindingshttp://web.archive.org/web/20110609012236/http://framework.kow.com.br/Other
GPLv2orlater
 
APSRTCP/IP packet sender to test firewalls and other network applicationshttp://www.aa-security.de/GPLv2 
APSchedulerIn-process task scheduler with Cron-like capabilitieshttps://pypi.org/project/APSchedulerOther 
APacheDEXCompute APDEX from Apache-style logshttp://git.erp5.org/gitweb/apachedex.gitGPLv2orlater
Expat
 
ARChon PackagerARChon Packager (formerly Chrome APK Packager) is a convenient way to produce Chrome ARChon Custom Runtime packages directly from your phone.https://github.com/bpear96/ARChon-PackagerGPLv3orlater 
ARChon Runtime for ChromeRun Android Apps in Chrome in OS X, GNU/Linux and Windowshttps://archon-runtime.github.io/ 
ARDENspecificity control for read alignments using an artificial referencehttp://sourceforge.net/projects/arden/Other 
ARandRSimple visual front end for XRandRhttp://christian.amsuess.com/tools/arandr/GPLv3orlater 
ARtsFramework for developing modular multimedia applicationshttps://web.archive.org/web/20060106015222/http://www.arts-project.org/LGPLv2orlater 
ASCENDA flexible modelling environment for hard engineering and science problems.http://ascend.cheme.cmu.edu/GPLv2 
ASEPRITEsprite and pixel art editorhttp://www.aseprite.org/Zlib
Other
GPLv2orlater
BSD 3Clause
 
ASISAda Semantic Interface Specificationhttp://docs.adacore.com/asis-docs/html/asis ug/asis ug/introduction.html#introductionGPLv3orlater 
ASN.1 CompilerASN.1 compiler for Chttp://asn1c.sourceforge.netGPLv2orlater
BSD 2Clause
 
ASPSeekSearch enginehttp://www.aspseek.org/GPLv2orlater 
ASTHandle World Coordinate Systems in Astronomy (main shared lib)http://www.starlink.ac.uk/astPublicDomain
Other
 
AT EmulatorEmulate a communication device, like a modemhttps://www.celersms.com/at-emulator.htm 
AT1JACK autotunerhttp://kokkinizita.linuxaudio.org/linuxaudio/GPLv2orlater 
ATC-pieAir traffic control simulation (solo and multi-player)https://sourceforge.net/projects/atc-pieGPLv3 
ATKThe Gnome accessibility toolkithttps://developer.gnome.org/atk/LGPLv2orlater 
ATLASGenerates high-performance mathematical librarieshttp://math-atlas.sourceforge.net/BSD 3Clause 
ATM SAR Library (SARLib)ATM Segmentation and Reassembly Library.http://sarlib.sourceforge.net/GPLv2orlater 
ATOSManage projects, generate invoices, and estimate your taxeshttps://github.com/jbelelieu/atosAGPL-3.0 
ATSLogA web-oriented interface for collecting, viewing and analysing calls for various types of PBXs.https://sourceforge.net/projects/atslog.berlios/GPLv2orlater 
AUnitAUnit, a unit testing framework for Ada: documentationhttp://libre.adacore.com/libre/GPLv3orlater 
AVFSLets programs look at archived files without having to recompile themhttp://www.inf.bme.hu/~mszeredi/avfs/avfs.htmlGPLv2 
AVInfoDisplays audio/video header informationhttp://shounen.ru/soft/avinfo/GPLv2orlater 
AVRAassembler for Atmel AVR microcontrollershttp://avra.sourceforge.netOther
GPLv2orlater
 
AVbina thin wrapper around FFmpeg.https://avbin.github.io/AVbin/Home/Home.htmlGPLv2orlater
LGPLv3orlater
 
AVideoA powerful, 100% libre video and audio downloader for GNU/Linuxhttps://notabug.org/GPast/avideoGPLv3orlater 
AWFWeb framework for a CMS/portal/online grouphttp://web.archive.org/web/20120917065920/http://www.awf-cms.org/GPLv2orlater 
AWOLIn/out boardhttp://sourceforge.net/projects/awol/GPLv2 
AWS SDK for PHPsoftware development kit to build solutions for Amazonhttp://aws.amazon.com/sdkforphp/Other
Expat
 
AWStatsGenerates and displays Web server statistics graphicallyhttp://awstats.sourceforge.net/GPLv2orlater 
AZR3drawbar organ simulatorhttp://ll-plugins.nongnu.org/azr3/GPLv2 
Aac-tacticsCoq tactics for reasoning modulo AC (theories)http://sardes.inrialpes.fr/~braibant/aac tactics/LGPLv3 
AafigureASCII art to image converter.https://launchpad.net/aafigureBSD 3Clause 
AalibASCII art libraryhttp://aa-project.sourceforge.net/aalib/LGPL 
AapThe Aap program executes recipes. It is a kind of super-make program.http://www.a-a-p.org/ISC
Expat
GPLv2
 
Aardvark ShellutilsThree utilities to make working with shell scripts easierhttp://www.laffeycomputer.com/shellutils.htmlGPLv2orlater 
AasmAdvanced assembler.https://savannah.nongnu.org/projects/aasm/GPLv3orlater 
AbGateLV2 noise gate pluginhttp://abgate.sourceforge.netOther
LGPLv3
 
AbacasAlgorithm Based Automatic Contiguation of Assembled Sequenceshttp://abacas.sourceforge.net/GPLv2orlater 
AbanteCart - Open Source Ecommerce SolutionAbanteCart is a free software shopping cart or ecommerce platform for small to medium size business. It is designed, built and supported by experienced enthusiasts that are passionate about their work and contribution to the rapidly evolving eCommerce industry. AbanteCart is powered with a robust and expandable core platform, state of the art feature set and a efficient user interface.http://www.abantecart.com 
AbbrevGet unique abbreviations for a set of strings - Node.js modulehttps://github.com/isaacs/abbrev-jsExpat 
Abbrev-jsLike ruby abbrev module, but for Node.jshttps://github.com/isaacs/abbrev-jsExpat 
Abc2psTypesetting program for ABC formathttp://www.ihp-ffo.de/~msm/GPLv2orlater 
AbcdeRips, encodes, and tags CDs with one commandhttp://code.google.com/p/abcde/Perl 
AbclockAnalog bitmap clockhttp://odur.let.rug.nl/~kleiweg/abclock/GPLv2orlater 
Abcm2psConverts music from ABC format to PostScripthttp://moinejf.free.fr/GPLv2orlater 
Abcmidiconverter from ABC to MIDI format and backhttp://ifdo.ca/~seymour/runabc/top.htmlGPLv2orlater
Expat
 
AbcppPreprocessor for ABC music fileshttp://abcplus.sourceforge.net/GPLv2orlater 
AbcshShell for processing ABC music notationhttps://www.gnu.org/software/abcsh/GPLv2orlater 
AbdabiRDF-based web of information for discovery of business services of all kinds.https://www.gnu.org/software/abdabi/GPLv2orlater 
AbelujoFree software for bookstoreshttp://abelujo.cc/en/AGPL-3.0-or-later 
AbiWordWord processor from the AbiSource Project desktop suitehttp://www.abisource.com/GPLv2orlater 
Abiwordefficient, featureful word processor with collaborationhttp://www.abisource.com/Other
GPLv2orlater
BSD 2Clause
GPLv2
LGPLv2orlater
GPLv3orlater
LGPLv2
 
AbookAddressbook programhttp://abook.sourceforge.net/GPLv2 
Abootbase files required for bootable media on Linux/Alphahttps://tracker.debian.org/pkg/abootOther
GPLv2orlater
 
AbracaSimple and powerful graphical client for XMMS2http://abraca.github.com/Abraca/ISC
Other
GPLv2orlater
 
AbsenceCalendar for keeping track of peoplehttp://www.unix-wissen.de/absence/GPLv3orlater 
Absolut EngineAdvanced news/content publishing systemhttp://www.absolutengine.comGPLv2 
Abstract-dequeabstract, parameterized interface to mutable Deques; documentationhttp://hackage.haskell.org/package/abstract-dequeBSD 3Clause 
Abstract-leveldownAbstract prototype matching the LevelDOWN API - Node.js modulehttps://github.com/rvagg/node-abstract-leveldownExpat 
Abstract-parAbstract parallelization interface; documentationhttp://hackage.haskell.org/package/abstract-parBSD 3Clause 
AbuseShoot-'em-up gamehttp://abuse.zoy.org/Other
GPLv2orlater
WTFPLv2
 
Academic Teaching PlannerA free software to manage academic courseshttps://sites.google.com/view/academic-teaching-plannerGPLv3orlater 
AcccheckPassword dictionary attack tool for SMBhttps://labs.portcullis.co.uk/tools/acccheck/GPLv2orlater 
Acceptshigher-level content negotiation for Node.jshttps://github.com/jshttp/acceptsExpat 
Accercisera next generation at-poke tool.http://live.gnome.org/AccerciserBSD 3Clause 
Access user ClassEasy to use PHP class to protect pages and register new usershttp://www.finalwebsites.com/snippets.php?id=10BSD 3Clause 
AccountsServicequery and manipulate user account informationhttp://cgit.freedesktop.org/accountsservice/GPLv2orlater
GPLv3orlater
 
AcctSystem accounting utilities.https://www.gnu.org/software/acct/X11
SimplePermissiveNoNonWarranty
SimplePermissiveNonWarranty
Other
GPLv2orlater with exception
GPLv2orlater
GPLv3orlater
GPLv3orlater with exception
[[File:Heckert_gnu.small.png|30px]]
Ace-of-penguinspenguin-themed solitaire gameshttp://freshmeat.net/projects/theaceofpenguinsGPLv2orlater
LGPLv2orlater
 
AcePerlObject-Oriented Access to ACEDB Databaseshttps://metacpan.org/release/AcePerlOther
LGPLv2orlater
 
Acedbretrieval of DNA or protein sequenceshttp://www.acedb.org/Other
GPLv2orlater
GPLv3
 
Acegi SecurityAcegi Security System for Springhttp://acegisecurity.org/Other 
AcetoneISOfeature-rich application to mount and manage CD and DVD imageshttps://sourceforge.net/projects/acetoneiso/Other
GPLv3orlater
 
AchievoWeb-based project management and tracking toolhttps://github.com/atkphpframework/achievoGPLv2 
Achievo ATKWeb application development frameworkhttps://github.com/Sintattica/atkGPLv3 
Achozorganize all of your own world datahttp://ahoxus.org/achoz 
Acid-stateHaskell database library with ACID guarantees - GHC librarieshttp://hackage.haskell.org/package/acid-statePublicDomain
GPLv2orlater
 
Ackgrep-like program specifically for large source treeshttps://beyondgrep.com/Other
GPLv2orlater
GPLv2
 
AcmAerial combat simulation game.https://www.gnu.org/software/acm/GPLv2orlater
GPLv3orlater
[[File:Heckert_gnu.small.png|30px]]
AcmeProvides support for special keys on laptopshttp://www.hadess.net/misc-code.php3GPLv2orlater 
Acme-BleachPerl module for really clean programshttps://metacpan.org/release/Acme-BleachOther 
Acme-DamnPerl module to unbless objectshttps://metacpan.org/release/Acme-DamnOther 
Acme-EyeDropsfunny way for visual programming in Perlhttps://metacpan.org/release/Acme-EyeDropsOther 
Acme-POE-KneeTime sliced pony race using the POE event loophttps://metacpan.org/release/Acme-POE-KneeOther 
Acme-constantmodule that makes inconstant constants, except actually nothttps://metacpan.org/release/Acme-constantExpat 
AcmemailMultiuser IMAP/POP3 to Web gateway MUAhttp://acmemail.sourceforge.net/ 
AconDisplays Arabic texthttp://members.tripod.com/ahmedahamid/arabic/arabic.htmlGPLv2 
AcoustID fingerprinterAcoustid fingerprinterhttp://wiki.acoustid.org/wiki/FingerprinterOther
GPLv2orlater
 
AcoveaCompiler optimization toolhttps://github.com/Acovea/libacoveaGPLv2 
Acpi callKernel module that enables you to call ACPI methodshttps://github.com/mkottman/acpi callGPLv3orlater 
AcpiToolA versatile command line ACPI client for GNU/Linux.http://freeunix.dyndns.org:8000/site2/acpitool.shtmlGPLv2orlater 
AcsccidPC/SC driver for ACS USB CCID smart card readershttp://acsccid.sourceforge.net/ISC
Other
LGPLv2orlater
GPLv3
 
Actdiaggenerate activity-diagram image file from spec-text filehttp://blockdiag.com/Other 
ActiViz.NETActiViz.NET documentationhttp://www.kitware.com/products/avdownload.phpOther 
ActimProvides the ability to transfer files and execute commands via e-mail.http://exom.sourceforge.netGPLv2orlater 
Action Mailera framework for designing email-service layers.http://rubyforge.org/projects/actionmailer/Expat 
Action QueryjQuery and ActiveRecord, sitting in a tree...http://github.com/nakajima/action-queryExpat 
Actionpack-action cachingaction caching for Action Packhttps://github.com/rails/actionpack-action cachingExpat 
ActivationJavaBeansâ„¢ Activation Frameworkhttps://www.gnu.org/software/classpathx/jaf/GPLv3 
ActiveFree groupwarehttp://www.active.org.au/doc/GPLv2 
Active CalendarGenerates calendars as HTML tableshttps://github.com/joechrysler/calendar/tree/master/Examples/activecalendarLGPL 
Active Resourcesprovides a coherent wrapper object-relational mapping for REST web services.http://code.google.com/p/pyactiveresource/Expat 
Active Spam KillerSpam filterhttp://www.paganini.net/ask/GPLv2orlater 
Active-x-obfuscatorSafely obfuscate the string 'ActiveX' inside of JavaScript codehttps://github.com/felixge/node-active-x-obfuscatorExpat 
ActiveMQ ActiveIOActiveMQ ActiveIO protocol implementation frameworkhttp://activemq.apache.org/Other 
ActiveMQ Protocol Buffers PluginActiveMQ Protocol Buffers Maven pluginhttp://activemq.apache.org/Other 
ActiveldapActiveLdap is a object-oriented API to LDAPhttps://rubygems.org/gems/activeldapOther
GPLv2orlater
 
Activerecord-deprecated findersdeprecated finder APIs extracted from Rails Active Record.https://github.com/rails/activerecord-deprecated findersOther 
Activity-log-managerblacklist configuration user interface for Zeitgeisthttps://launchpad.net/history-managerGPLv2orlater 
Actor platformmultiplatform text, photo and voice message serverhttps://github.com/actorapp/actor-platformAGPLv3 
Acts as Auditedan ActiveRecord extension that logs all changes to your models in an audits table.http://github.com/collectiveidea/acts as auditedExpat 
Acts as apimakes creating XML/JSON responses in Rails 3 easy and funhttps://github.com/fabrik42/acts as apiExpat 
Acts as fuWhen you need a dash of ActiveRecord and nothing more.http://github.com/nakajima/acts as fuExpat 
Acts-as-taggable-onprovides advanced tagging for Railshttps://github.com/mbleigh/acts-as-taggable-onExpat 
Ad-hoc Support Librarya user-space library which provides an API to faciliate implementation of routing protocols for wireless ad-hoc networks in GNU/Linux.http://aslib.sourceforge.net/X11
GPLv2
 
AdPlugfree AdLib sound library (utils)http://adplug.sourceforge.net/Other
LGPLv2orlater
GPLv3orlater
 
Ada ComponentsToolset for Adahttp://lglwww.epfl.ch/Team/MW/mw components.htmlGPLv2 
Ada Motif binding libraryBinding to X Windows and OSF/Motif for the Ada programming languagehttp://home.arcor.de/hfvogt/programming.htmlGPLv2orlater 
Ada Web ServerAda Web Server documentationhttps://libre.adacore.com/libreBSD 3Clause
Expat
GPLv3orlater
 
AdaControlAda rules controllerhttp://www.adalog.fr/en/adacontrol.htmlOther
GPLv2orlater
 
AdaCursesAda binding to the ncurses text interface library: shared libraryhttps://invisible-island.net/ncurses/ncurses-Ada95.htmlX11 
AdaDocDocumentation tool for Adahttp://adadoc.sourceforge.net/GPLv2 
AdaGatecombination of Sokoban and Portalhttps://sourceforge.net/projects/adagate/GPLv3orlater 
AdaSocketsAllows for use of sockets in Ada95http://www.rfc1149.net/devel/adasockets.html.enGPLv2orlater with exception 
AdaUnitsImplementation of dimensioned values for Adahttp://www.dmitry-kazakov.de/ada/units.htmGPLv2orlater with exception 
AdaVentureAdaVenture is a kid-friendly retro point & click adventure game written in Ada.https://sourceforge.net/projects/adaventure/GPLv3 
AdacURLAda95 binding to the 'cURL' libraryhttp://web.archive.org/web/20070403105909/http://www.almroth.com/adacurl/index.htmlGPLv2orlater with exception 
Adaptive Sampling KitAdaptive Sampling Kit for big experimental spaceshttps://code.google.com/p/adaptive-sampling-kit/Other
Expat
GPLv2
 
Adblock PlusAd blockerhttps://adblockplus.org/GPLv3 
AdcdSmall CD player for GNU/Linux.https://www.nongnu.org/adcd/GPLv2orlater 
Add custom search engineAdd a custom search engine to the list of available search engines in the search bar and URL bar.https://github.com/evilpie/add-custom-search-engine 
AddendatBlogging program that can be updated from either a CGI or shell interfacehttp://deekoo.net/technocracy/addendat/GPLv2 
Addressablealternative URI implementation for Rubyhttps://rubygems.org/gems/addressableOther
GPLv2orlater
 
AdequateDebian package quality testing toolhttp://jwilk.net/software/adequateExpat 
AdhocM4 macros to generate general-purpose portable shell scripts.https://savannah.gnu.org/projects/adhoc/GPLv3orlater
GPLv3orlater with exception
 
AdieProgrammer's text editorhttp://www.fox-toolkit.org/adie.htmlLGPL 
AdjtimexDisplays or sets the kernel time variablehttp://www.ibiblio.org/linsearch/lsms/adjtimex.htmlGPLv2 
AdlintSource code static analyzerhttp://adlint.sourceforge.net/GPLv3orlater 
AdmeshTool for processing triangulated solid mesheshttps://launchpad.net/admesh/GPLv2orlater 
AdminerWeb-based database administration toolhttp://www.adminer.org/Other 
AdnsAsynchronous DNS client library and utilities.https://www.gnu.org/software/adns/GPLv3orlater[[File:Heckert_gnu.small.png|30px]]
AdtoolUtility for Active Directory administrationhttp://gp2x.org/adtool/GPLv2orlater 
AdvancePersonal information management (PIM) systemhttp://sourceforge.net/projects/advance/GPLv2 
Advanced Bash-Scripting GuideAn in-depth exploration of the art of shell scriptinghttps://tldp.org/LDP/abs/html/PublicDomain 
Advanced Stock Tracking SystemA web based stock trackerhttps://sourceforge.net/projects/ast/GPLv2orlater 
Advanced package toolPackage managerhttps://wiki.debian.org/Apt 
AdveneAnnotate DVDs, Exchange on the Nethttp://www.advene.org/PublicDomain
Other
GPLv2orlater
BSD 3Clause
Expat
GPLv2
Creative Commons Attribution 3.0
 
Aeassertive expressive (ae) is an assertions libraryhttp://rubyworks.github.com/aeOther
BSD 2Clause
 
AegisSoftware configuration management systemhttp://aegis.sourceforge.net/GPLv2orlater 
Aegisubadvanced subtitle editorhttp://www.aegisub.org/PublicDomain
Zlib
ISC
Other
BSD 3Clause
 
Aenig4Enigma M4 Cipher Machine Emulatorhttps://jorgicor.niobe.org/aenig4Expat 
AeolusSynthesised pipe organ emulatorhttp://kokkinizita.linuxaudio.org/linuxaudio/aeolus/GPLv2orlater 
AercAn efficient and extensible TUI email client for hackershttps://aerc-mail.org/Expat 
AeroCalca package that performs various aeronautical engineering calculations.http://www.kilohotel.com/python/aerocalc/BSD 3Clause 
Aesfixtool for correcting bit errors in an AES key schedulehttp://citp.princeton.edu/memory/code/GPLv2orlater
BSD 3Clause
 
Aeskeyfindtool for locating AES keys in a captures memory imagehttp://citp.princeton.edu/memory/code/GPLv2orlater
BSD 3Clause
 
AeskulapMedical image viewer and DICOM network client.https://www.nongnu.org/aeskulap/Other
GPLv2
 
Aeson-prettyJSON pretty-printing toolhttp://hackage.haskell.org/package/aeson-prettyBSD 3Clause 
AetherLibrary to handle Java artifact repositorieshttp://aether.sonatype.org/Other 
AetherspaceProject to produce a multiplayer game.https://www.gnu.org/software/aetherspace/AGPLv3orlater 
AewanTool for creating and editing ASCII arthttp://aewan.sourceforge.netGPLv2orlater 
AewmLightweight window managerhttp://www.red-bean.com/~decklin/aewm/Expat 
AfferoSoftware to facilitate funding of non-profitshttp://www.affero.org/AGPL-1.0-or-later 
Affinityis a desktop search tool.http://code.google.com/p/affinity-search/GPLv2orlater 
AffyBioConductor methods for Affymetrix Oligonucleotide Arrayshttp://bioconductor.org/packages/release/bioc/html/affy.htmlOther 
AffyioBioConductor tools for parsing Affymetrix data fileshttp://bioconductor.org/packages/release/bioc/html/affyio.htmlOther 
AfickFile integrity checkerhttp://afick.sourceforge.net/GPLv2orlater 
Afick-WebminFacilitates afick remote administrationhttp://afick.sourceforge.net/GPLv2orlater 
AfmRuby library to read Adobe Font Metrics fileshttps://github.com/halfbyte/afmOther
Expat
 
Afpfs-ngClient for the Apple Filing Protocol (AFP) (transitional package)http://sites.google.com/site/alexthepuffin/homeGPLv2orlater 
AftenA simple A/52 (AC-3) audio encoder.http://aften.sourceforge.net/GPLv2orlater 
AfterStepWindow manager for Xhttp://www.afterstep.org/GPLv2orlater 
AfterStep Clock AppletClockhttp://web.cs.mun.ca/~gstarkes/wmaker/dockapps/time.htmlGPLv2 
Ag.elEmacs frontend to aghttps://github.com/Wilfred/ag.elGPLv3orlater 
AgathaA simple PHP script for streaming music and playlists with Apache.http://agatha.sourceforge.net/GPLv2 
Agave - GNOME Colorscheme GeneratorA simple GNOME application for generating color schemes.http://home.gna.org/colorscheme/GPLv2orlater 
Agdadependently typed functional programming languagehttp://wiki.portal.chalmers.se/agda/Other 
Agda standard librarystandard library for Agdahttp://wiki.portal.chalmers.se/agda/Expat 
Agda-executablecommandline interface to Agdahttp://wiki.portal.chalmers.se/agda/Other 
Agenda du libreA calendar management project, for events and activities related for Free Software and its communitieshttp://www.agendadulibre.org/ 
AgendaroidsA simple vector-based asteroid-shooting gamehttp://www.newbreedsoftware.com/agendaroids/GPLv2 
AggAntiGrain Geometry graphical toolkit (development files)http://www.antigrain.comGPLv2orlater 
AggregateRuby class for accumulating aggregate statisticshttp://github.com/josephruscio/aggregatePublicDomain
Other
 
AghermannSleep-research experiment managerhttp://johnhommer.com/academic/code/aghermannGPLv2orlater
LGPLv2
 
Agidea framework in which separate tools can work together.http://www.a-a-p.org/GPLv2 
Agile ToolkitAgile Toolkit is a powerful web development framework.http://agiletoolkit.org/AGPLv3orlater 
AgnostosWeb-based tool for managing to do listshttp://www.xenoclast.org/agnostos/GPLv2orlater 
AhcpdAd-Hoc Configuration Protocolhttp://www.pps.jussieu.fr/~jch/software/ahcp/Other 
AhvenUnit test library for Ada (debug)http://ahven.stronglytyped.org/Other
GPLv3orlater
 
AigaionAigaion is a web-based system for managing annotated bibliographies. It is BibTeX compliant and can im- and export in the BibTeX and RIS format.http://sourceforge.net/projects/aigaion/GPLv2orlater 
Ain2syslog logging for Nodehttps://github.com/phuesler/ainGPLv2orlater
Expat
 
AiodnsAsynchronous DNS resolutionshttps://github.com/saghul/aiodnsExpat 
AiohttpFramework for making asynchronous HTTP client and servershttps://github.com/aio-libs/aiohttpExpat
Apache2.0
 
Air-quality-sensoruser space driver for AppliedSensor's Indoor Air Monitorhttps://github.com/bwildenhain/air-quality-sensorGPLv3orlater 
AirTrafficAir Traffic Control simulationhttp://airtraffic.sourceforge.net/GPLv2orlater 
AircrackTools for auditing wireless networks 'http://www.aircrack-ng.org/GPLv2orlater 
Aircrack-ngwireless WEP/WPA cracking utilitieshttp://www.aircrack-ng.org/PublicDomain
GPLv2orlater with exception
GPLv2orlater
BSD 3Clause
BSD 2Clause
GPLv2
 
Airhooka data delivery protocol, like TCP.http://advogato.org/proj/Airhook/GPLv2orlater 
Airscheck for new TV episodeshttps://github.com/jorgb/airsGPLv2 
Airspy-hostTiny and efficient software defined radio receiverhttp://airspy.comOther
GPLv2orlater
 
Airstrike2d dogfight game in the tradition of 'Biplanes' and 'BIP'http://icculus.org/airstrike/GPLv2 
AirtimeFree software radio automation softwarehttp://www.sourcefabric.org/en/airtime/GPLv3 
AisleriotGNOME solitaire card game collectionhttps://wiki.gnome.org/Apps/AisleriotOther
GPLv3orlater
LGPLv3
 
Aj-snapshotmake snapshots of JACK connectionshttp://aj-snapshot.sourceforge.net/GPLv3orlater 
AjaxMyTopA Web-based tool featuring an AJAX user interface for monitoring a MySQL server.http://sourceforge.net/projects/ajaxmytop/GPLv2orlater 
AjaxtermWeb based terminal written in Pythonhttp://antony.lesuisse.org/qweb/trac/wiki/AjaxTermPublicDomain
Other
GPLv2
 
AjentiAjenti is a GNU/Linux & BSD modular server admin panelhttps://ajenti.org/Expat 
AkfquizWrite quiz-games and psychotests.https://www.nongnu.org/akfquiz/GPLv3orlater 
AkregatorRSS/Atom feed reader and aggregator for KDEhttps://userbase.kde.org/AkregatorGPLv2 
AlacrittyA Wayland-native GPU-accelerated terminal emulator written in Rusthttps://github.com/alacritty/alacritty 
Alarm PingerMonitors IP devices by ICMP echo requestshttps://github.com/Jajcus/apingerGPLv2 
Alarm-clock-appletAlarm Clock applethttp://alarm-clock.pseudoberries.com/GPLv2orlater 
AlbinoRuby wrapper for pygmentizehttp://github.com/github/albinoExpat 
Album Cover Art Downloader 2Downloads images from a collection of albumshttp://www.unrealvoodoo.org/projects/albumartGPLv2orlater
AlbumEasySoftware for creating custom stamp album pageshttps://www.thestampweb.com/albumeasyGPLv3orlater 
AlchemistA functional, Ruby DSL for casting, transforming and transposing objectshttps://github.com/acumenbrands/alchemistX11 
AldThe Assembly Language Debugger is a tool for debugging executable programs at the assembly level.http://ald.sourceforge.netGPLv2orlater 
AldoMorse code tutorhttp://www.nongnu.org/aldo/GPLv2orlater 
Alembiclightweight database migration tool for SQLAlchemyhttp://www.bitbucket.org/zzzeek/alembicOther 
AlerttailA tool to execute actions when specific text has been written to a file.https://sourceforge.net/projects/alerttail/?source=navbarGPLv2orlater 
AletheiaAletheia is a decentralised open access publishing platform for scientific research.https://aletheia-foundation.io/GPL 
Alex4Alex the Allegator 4 - a retro platform gamehttp://allegator.sourceforge.net/GPLv2orlater 
AlexandriaAccess to electronic content and services for the blind.https://www.gnu.org/software/alexandria/GPLv2orlater 
Alexis FTP (aftp)an FTP library and a background FTP tool.http://aftp.sourceforge.net/GPLv2orlater 
Alexis Makes (amake)a make tool which uses powerful pattern transformation enabling a single makefile to automatically handle the compilation of any level of directory hierachy.http://amake.sourceforge.net/GPLv2orlater 
Alf.ioTicket reservation systemhttps://alf.ioGPLv3 
Alfandega FirewallImplements iptables-based firewallshttp://alfandega.sourceforge.net/GPLv2 
AlfrescoBusiness document managementhttp://www.alfresco.com/products/communityLGPLv3 
AlgartJava libraries for processing arrays and matrices, including image processinghttp://algart.net/java/AlgART/Expat 
AlglibDevelopment files for the alglib libraryhttp://www.alglib.net/Other
GPLv2orlater
 
AlgoBoxalgorithmics introduction - French UIhttp://www.xm1math.net/algobox/Other
GPLv2orlater
 
Algol 68 GenieA fairly fully featured Algol 68 interpreterhttp://www.xs4all.nl/~jmvdveer/algol.htmlGPLv2orlater
GPLv3
 
Algorithm-C3Perl module for merging hierarchies using the C3 algorithmhttps://metacpan.org/release/Algorithm-C3Other 
Algorithm-Combinatoricsmodule for the efficient generation of combinatorial sequenceshttps://metacpan.org/release/Algorithm-CombinatoricsOther 
Algorithm-Diffmodule to find differences between fileshttps://metacpan.org/release/Algorithm-DiffOther 
Algorithm-Diff-XSmodule to find differences between files (XS accelerated)https://metacpan.org/release/Algorithm-Diff-XSOther 
Algorithm-LBFGSPerl interface to an L-BFGS non-linear optimization algorithmhttps://metacpan.org/release/Algorithm-LBFGSOther 
Algorithm-Munkresextension for Munkres' solution to Assignment problemhttps://metacpan.org/release/Algorithm-MunkresOther
GPLv2orlater
 
Algorithm-Permutemodule to perform permutations with object oriented interfacehttps://metacpan.org/release/Algorithm-PermuteOther 
Aliasmodule for accessing perl variables through aliaseshttps://metacpan.org/release/AliasOther 
AliasedPerl module to provide aliases of class nameshttps://metacpan.org/release/aliasedOther 
AlienConverts between different free software packaging formatshttps://joeyh.name/code/alien/GPLv2 
Alien hunterInterpolated Variable Order Motifs to identify horizontally acquired DNAhttp://www.sanger.ac.uk/resources/software/alien hunter.htmlOther 


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