List of free and open-source software packages

This article is about software free to be modified and distributed. For examples of software free in the monetary sense, see List of freeware.

This is a list of free and open-source software packages, computer software licensed under free software licenses and open-source licenses. Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source. For more information about the philosophical background for open-source software, see free software movement and Open Source Initiative. However, nearly all software meeting the Free Software Definition also meets The Open Source Definition and vice versa. A small fraction of the software that meets either definition is listed here.

Some of the open-source applications are also the basis of commercial products, shown in the List of commercial open-source applications and services.

Applied fields

Artificial intelligence

• General:
  • OpenCog – A project that aims to build an artificial general intelligence (AGI) framework. OpenCog Prime is a specific set of interacting components designed to give rise to human-equivalent artificial general intelligence.
• Computer Vision:
  • AForge.NET – Computer Vision, Artificial Intelligence and Robotics library for the .NET Framework
  • OpenCV – Computer Vision Library in C++
• Machine Learning:
  • See List of open-source machine learning software
  • See Data Mining below
  • See R programming language – packages of statistical learning and analysis tools
• Planning:
  • TREX – Reactive planning
• Robotics
  • ROS – Robot Operating System
  • YARP – Yet Another Robot Platform

CAD

Main category: Free computer-aided design software

• FreeCAD – Parametric 3D CAD modeler with a focus on mechanical engineering, BIM, and product design
• LibreCAD – 2D CAD software using AutoCAD-like interface and file format

Electronic design automation (EDA)

Main category: Free electronic design automation software

Computer simulation

Main article: List of free and open-source computer simulation software

• Blender – 3D modeling software written in C, C++, and Python containing cloth, hair, fluid, particle, and rigid body simulation techniques
• SimPy – Queue-theoretic event-based simulator written in Python
• flightgear – Flight simulator written for Windows, Mac OS X, and GNU/Linux
• FeatFlow – High-performance computational fluid dynamics CFD FEM solver

Finance

See also: Comparison of accounting software

• Adempiere – Enterprise resource planning(ERP) business suite
• Bitcoin Core – Peer-to-peer decentralised digital currency
• Bonita Open Solution – Business Process Management
• CiviCRM – Constituent Relationship Management software aimed at NGOs
• Compiere – ERP solution automates accounting, supply chain, inventory, and sales orders
• Cyclos – Software for microfinance institutions, complementary currency systems and timebanks
• Dolibarr – Web-based ERP system
• ERPNext – Web-based open-source ERP system for managing accounting and finance
• GnuCash – Double-entry book-keeping
• HomeBank – Personal accounting software
• iDempiere – Bussines Suite, ERP and CRM
• Ino erp – Dynamic pull based system ERP
• jFin – Java-based trade-processing program
• JFire – An ERP business suite written with Java and JDO
• KMyMoney – Double-entry book-keeping
• LedgerSMB – Double-entry book-keeping
• metasfresh – ERP Software
• Mifos – Microfinance Institution management software
• Odoo – Open-source ERP, CRM and CMS
• Openbravo - web-based ERP
• OrangeHRM – Commercial human resource management
• Postbooks – Integrated accounting and ERP business suite
• QuickFIX – FIX protocol engine written in C++ with additional C#, Ruby, and Python wrappers
• QuickFIX/J – FIX protocol engine written in Java
• RCA open-source application
• SQL Ledger – Double-entry book-keeping
• SugarCRM – Commercial Customer Relationship Management
• Tryton - Open-source ERP
• TurboCASH – Double-entry book-keeping for Windows
• Wave Accounting – Double-entry book-keeping
• ZipBooks – Double-entry book-keeping

Integrated Library Management Software

• Evergreen – Integrated Library System initially developed for the Georgia Public Library Service's PINES catalog
• Koha – SQL-based library management
• NewGenLib
• OpenBiblio
• PMB
• refbase – Web-based institutional repository and reference management software

Image editor

• Darktable – Digital image workflow management, including RAW photo processing
• digiKam – Integrated photography toolkit including editing capabilities
• GIMP – Raster graphics editor aimed at image retouching/editing
• Inkscape – Vector graphics editor
• Krita – Digital painting and sketching application, with a variety of brush engines
• RawTherapee – Digital image workflow management aimed at RAW photo processing

Mathematics

For a more comprehensive list, see List of open-source software for mathematics.

Reference management software

See also: Comparison of reference management software

Science

Main category: Free science software

Bioinformatics

See also: List of open source bioinformatics software

Cheminformatics

• Chemistry Development Kit
• JOELib
• OpenBabel

Geographic Information Systems

Main category: Free GIS software

Grid computing

• P-GRADE Portal – Grid portal software enabling the creation, execution and monitoring of workflows through high-level Web interfaces

Microscope image processing

• CellProfiler – Automatic microscopic analysis, aimed at individuals lacking training in computer vision
• Endrov – Java-based plugin architecture designed to analyse complex spatio-temporal image data
• FIJI (software) – ImageJ-based image processing
• Ilastik – Image-classification and segmentation software
• ImageJ – Image processing application developed at the National Institutes of Health
• IMOD – 2D and 3D analysis of electron microscopy data
• ITK – Development framework used for creation of image segmentation and registration programs
• KNIME – Data analytics, reporting, and integration platform
• OsiriX – macOS DICOM viewing software
• VTK – C++ toolkit for 3D computer graphics, image processing, and visualisation
• 3DSlicer – Medical image analysis and visualisation

Molecular dynamics

• Abalone – Molecular dynamics software
• Ascalaph Designer – Molecular modeling and simulation
• GROMACS – Protein, lipid, and nucleic acid simulation
• LAMMPS – Molecular dynamics software
• MDynaMix – General-purpose molecular dynamics, simulating mixtures of molecules
• NAMD – Parallel efficient simulation of large systems involving millions of atoms
• NWChem – Quantum chemical and molecular dynamics software

Molecule viewer

• Avogadro – Plugin-extensible molecule visualisation
• BALLView – Molecular modeling and visualisation
• Jmol – 3D representation of molecules in a variety of formats, for use as a teaching tool
• Molekel – Molecule viewing software
• MeshLab – Able to import PDB dataset and build up surfaces from them
• PyMOL – High-quality representations of small molecules as well as biological macromolecules
• QuteMol – Interactive molecule representations offering an array of innovative OpenGL visual effects
• RasMol – Visualisation of biological macromolecules

Nanotechnology

• Ninithi – Visualise and analyse carbon allotropes, such as Carbon nanotube, Fullerene, Graphene nanoribbons

Plotting

Main category: Free plotting software

Quantum chemistry

• CP2K – Atomistic and molecular simulation of solid-state, liquid, molecular, and biological systems
• GAMESS (US) – Computational chemistry application

Risk Management

• Active Agenda – Operational risk management and Rapid application development platform

Statistics

Main category: Free statistical software

Surveys

• LimeSurvey – Online survey system

Assistive technology

Speech (synthesis and recognition)

• CMU Sphinx – Speech recognition software from Carnegie Mellon University
• Emacspeak – Audio desktop
• ESpeak – Compact software speech synthesizer for English and other languages
• Festival Speech Synthesis System – General multilingual speech synthesis
• Modular Audio Recognition Framework – Voice, audio, speech NLP processing
• NonVisual Desktop Access – (NVDA) Screen reader, for Windows
• Text2Speech – Lightweight, easy-to-use Text-To-Speech (TTS) Software

Other assistive technology

• Dasher – Unique text input software
• Gnopernicus – AT suite for GNOME 2
• Virtual Magnifying Glass – a multi-platform screen magnification tool

Data storage and management

Backup software

Main category: Free backup software

Database management systems (including administration)

Main category: Free database management systems

Data mining

• Environment for DeveLoping KDD-Applications Supported by Index-Structures (ELKI) – Data mining software framework written in Java with a focus on clustering and outlier detection methods
• SCaViS – Java-based data analysis framework
• Konstanz Information Miner (KNIME)
• OpenNN – Open-source neural networks software library written in the C++ programming language
• Orange (software) – Data visualization and data mining for novice and experts, through visual programming or Python scripting. Extensions for bioinformatics and text mining
• RapidMiner – Data mining software written in Java, fully integrating Weka, featuring 350+ operators for preprocessing, machine learning, visualization, etc. – the previous version is available as open source
• Scriptella ETL – ETL (Extract-Transform-Load) and script execution tool. Supports integration with J2EE and Spring. Provides connectors to CSV, LDAP, XML, JDBC/ODBC, and other data sources
• Weka – data mining software written in Java featuring machine learning operators for classification, regression, and clustering
• JasperSoft – Data mining with programmable abstraction layer

Data Visualization Components

• ParaView – Plotting and visualization functions developed by Sandia National Laboratory; capable of massively parallel flow visualization utilizing multiple computer processors
• VTK – Toolkit for 3D computer graphics, image processing, and visualisation.

Digital Asset Management software system

• ResourceSpace – Widely used system with roots in the NGO sector

Disk partitioning software

Main category: Free partitioning software

Enterprise search engines

• ApexKB, formerly known as Jumper
• Lucene
• Nutch
• Solr
• Xapian
• Elasticsearch

ETLs (Extract Transform Load)

• Konstanz Information Miner (KNIME)
• Pentaho
• SpagoBI
• Talend

File archivers

Main category: Free data compression software

File Systems

• OpenAFS – Distributed file system supporting a very wide variety of operating systems
• Tahoe-LAFS – Distributed file system/Cloud storage system with integrated privacy and security features
• CephFS – Distributed file system included in the Ceph storage platform.

Networking and Internet

Advertising

• OpenX

Communication-related

• Asterisk – Telephony and VoIP server
• Ekiga – Video conferencing application for GNOME and Microsoft Windows
• FreePBX – Front-end and advanced PBX configuration for Asterisk
• FreeSWITCH – Telephony platform
• Jitsi – Java VoIP and Instant Messaging client
• QuteCom – Voice, video, and IM client application
• Enterprise Communications System sipXecs – SIP Communications Server
• Slrn – Newsreader
• Twinkle – VoIP softphone
• Ring – Cross-platform, peer to peer instant-messaging and video-calling protocol that offers end-to-end and SIP client
• Tox – Cross-platform, peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption

E-mail

Main category: Free email software

• Geary (software) – email client based on WebKitGTK+
• Inky – email client with "smart views" that automatically organises email into individual folders
• Mozilla Thunderbird – email, news, RSS, and chat client

File transfer

Main category: Free file transfer software

Grid and distributed processing

• GNU Queue
• HTCondor
• OpenLava
• pexec

Instant messaging

Main category: Free instant messaging clients

IRC Clients

Main category: Free Internet Relay Chat clients

Middleware

• Apache Axis2 – Web service framework (implementations are available in both Java & C)
• Apache Geronimo – Application server
• Bonita Open Solution – a J2EE web application and java BPMN2 compliant engine
• GlassFish – Application server
• Jakarta Tomcat – Servlet container and standalone webserver
• JBoss Application Server – Application server
• ObjectWeb JOnAS – Java Open Application Server, a J2EE application server
• TAO (software) – C++ implementation of the OMG's CORBA standard
• Enduro/X – C/C++ middleware platform based on X/Open group's XATMI and XA standards

RSS/Atom readers/aggregators

• Akregator – Platforms running KDE
• Liferea – Platforms running GNOME
• RSS Bandit – Windows, using .NET Framework
• RSSOwl – Windows, Mac OS X, Solaris, Linux using Java SWT Eclipse
• Sage (Mozilla Firefox extension)

Peer-to-peer file sharing

Main category: Free file sharing software

See also: Category:Free BitTorrent clients.

• Popcorn Time – Multi-platform, free, and open-source media player

Portal Server

• Drupal
• eXo Platform
• Liferay
• Oxwall – Community site software
• Sun Java System Portal Server
• uPortal

Remote access and management

• FreeNX
• OpenVPN
• rdesktop
• Synergy
• VNC (RealVNC, TightVNC, UltraVNC)
• Remmina

Routing software

Main category: Free routing software

Web browsers

Main category: Free web browsers

• Chromium – Minimalist web browser from which Google Chrome draws its source code
• Firefox – Mozilla-developed web browser using the Gecko layout engine
• Midori – Lightweight web browser using the WebKit layout engine
• Waterfox – Alternative to Firefox (64-Bit only)

Webcam

• Cheese – GNOME webcam application
• Guvcview – Linux webcam application

Webgrabber

• cURL
• HTTrack
• Wget

Web-related

• Apache Cocoon – A web application framework
• Apache – The most popular web server
• AWStats – Log file parser and analyzer
• BookmarkSync – Tool for browsers
• Cherokee – Fast, feature-rich HTTP server
• curl-loader – Powerful HTTP/HTTPS/FTP/FTPS loading and testing tool
• Hiawatha – Secure, high performance, and easy-to-configure HTTP server
• HTTP File Server – User-friendly file server software, with a drag-and-drop interface
• lighttpd – Resource-sparing, but also fast and full-featured, HTTP Server
• Lucee – CFML application server
• nginx – Lightweight, high performance web server/reverse proxy and e-mail (IMAP/POP3) proxy
• NetKernel – Internet application server
• Qcodo – PHP5 framework
• Squid (software) – Web proxy cache
• Vaadin – Fast, Java-based framework for creating web applications
• Varnish (software) – High-performance web application accelerator/reverse proxy and load balancer/HTTP router
• XAMPP – Package of web applications including Apache and MariaDB
• Zope – Web application server

Other networking programs

• JXplorer – LDAP client
• OpenLDAP – LDAP server
• YaCy – P2P-based search engine
• ownCloud – File share and sync server
• Wireshark – Network monitor

Educational

Educational suites

• ATutor – Web-based Learning Content Management System (LCMS)
• Chamilo – Web-based e-learning and content management system
• Claroline – Collaborative Learning Management System
• DoceboLMS – SAAS/cloud platform for learning
• eFront – Icon-based learning management system
• FlightPath – Academic advising software for universities
• GCompris – Educational entertainment, aimed at children aged 2–10
• Gnaural – Brainwave entrainment software
• H5P – Framework for creating and sharing interactive HTML5 content
• IUP Portfolio – Educational platform for Swedish schools
• ILIAS – Web-based learning management system (LMS)
• Moodle – Free and open-source learning management system
• OLAT – Web-based Learning Content Management System
• Omeka – Content management system for online digital collections
• openSIS – Web-based Student Information and School Management system
• Sakai Project – Web-based learning management system
• SWAD – Web-based learning management system
• Tux Paint – Painting application for 3–12 year olds
• UberStudent – Linux based operating system and software suite for academic studies

Geography

• KGeography – Educational game teaching geography

Learning support

Main category: Free learning support software

Language

• Kiten
• KVerbos

Typing

• KTouch – Touch typing lessons with a variety of keyboard layouts
• Tux Typing – Typing tutor for children, featuring two games to improve typing speed

Other educational programs

• KEduca – Test management and creation tool

File managers

Main category: Free file managers

Games

Main article: List of open-source video games

Application layer

• WINE – Allows Windows applications to be run on Unix-like operating systems

Genealogy

Main category: Free genealogy software

Graphical user interface

Desktop environments

Main category: Free desktop environments

Window managers

Main category: Free X window managers

Windowing system

Main category: Free windowing systems

Groupware

Main category: Free groupware

Content management systems

Main category: Free content management systems

Wiki software

Main category: Free wiki software

Healthcare software

Main articles: List of open-source health software and List of open-source bioinformatics software

Hobby software

Homebrewing

• CyberBrau

Media

2D animation

• Pencil2D – Simple 2D graphics and animation program
• Pivot Animator – Application used to create stick figure and sprite animations
• Synfig – 2D vector graphics and timeline based animation
• Tupi (formerly KTooN) – Application for the design and creation of animation
• OpenToonz – Part of a family of 2D animation software

3D animation

• Blender – Professional computer graphics software featuring modeling, sculpting, texturing, rigging, simulation, rendering, camera tracking, video editing, and compositing
• K-3D – Plugin oriented procedural modeling and animation
• OpenFX – Modeling and animation software with a variety of built-in post processing effects
• Seamless3d – Node-driven 3D modeling software

Audio editors, audio management

Main article: Comparison of free software for audio

CD/USB-writing software

Main category: Free optical disc authoring software

Flash animation

• Pencil2D – For animations
• SWFTools – For scripting

Graphics

Main category: Free graphics software

Image galleries

Main category: Free image galleries

Image viewers

• Eye of GNOME
• F-spot
• Geeqie
• Gthumb
• Gwenview
• Kphotoalbum
• Opticks

Multimedia codecs, containers, splitters

Main category: Free multimedia codecs, containers, and splitters

Television

Main article: List of free television software

Main category: Free television software

See also: Comparison of PVR software packages

Video converters

Main category: Free video conversion software

• Dr. DivX
• FFmpeg
• MEncoder
• OggConvert

Video editing

See also: List of video editing software § Free_and_open-source

• Avidemux
• AviSynth
• Blender
• Cinelerra
• DScaler
• DVD Flick
• Flowblade
• Kaltura
• Kdenlive
• Kino
• LiVES
• Natron
• OpenShot Video Editor
• Pitivi
• Shotcut
• VirtualDub
• VirtualDubMod
• VideoLAN Movie Creator

Video encoders

Main article: Comparison of video encoders

• Avidemux
• HandBrake
• ShareX

Video players

Main article: Comparison of video player software

• VLC
• Media Player Classic

Other media packages

• Celtx – Media pre-production software

Operating systems

Be advised that available distributions of these systems can contain, or offer to build and install, added software that is neither free software nor open-source.

Main category: Free software operating systems

Emulation and Virtualisation

Main category: Free emulation software

Main category: Free virtualization software

• VirtualBox

Password management

• KeePass
• Password Safe
• Mitro

Personal information managers

• Chandler – Developed by the OSAF
• KAddressBook
• Kontact
• KOrganizer
• Mozilla Calendar – Mozilla-based, multi-platform calendar program
• Novell Evolution
• OpenSync (software)
• Project.net – Commercial Project Management
• TeamLab – Platform for project management and collaboration

Programming language support

Main article: List of open-source programming languages

Bug trackers

• Bugzilla
• Mantis
• Mindquarry
• Redmine
• Trac

Code generators

• Bison
• CodeSynthesis XSD – XML Data Binding compiler for C++
• CodeSynthesis XSD/e – Validating XML parser/serializer and C++ XML Data Binding generator for mobile and embedded systems
• Flex lexical analyser – Generates lexical analyzers
• Kodos
• Open Scene Graph – 3D graphics application programming interface
• OpenSCDP – Open Smart Card Development Platform
• phpCodeGenie
• SableCC – Parser generator for Java and .NET
• SWIG – Simplified Wrapper and Interface Generator for several languages
• ^txt2regex$
• xmlbeansxx – XML Data Binding code generator for C++
• YAKINDU Statechart Tools – Statechart code generator for C++ and Java

Documentation generators

• Doxygen – Tool for writing software reference documentation. The documentation is written within code.
• Mkd – The software documentation is extracted from the sources files, from pseudocode or comments.
• Natural Docs – Claims to use a more natural language as input from the comments, hence its name.

Configuration software

• Autoconf
• Automake
• BuildAMation
• CMake

Debuggers (for testing and trouble-shooting)

• GNU Debugger – "works for many programming languages [...]"
• Memtest86 – Stress-tests RAM on x86 machines
• Xnee – Record and replay tests

Integrated development environments

Main category: Free integrated development environments

Version control systems

Main category: Free version control software

Screensavers

• BOINC
• Electric Sheep
• XScreenSaver

Security

Anti-virus

• ClamAV
• ClamWin
• Gateway Anti-Virus
• Lynis

Data loss prevention

• MyDLP

Data recovery

• dvdisaster
• Foremost
• PhotoRec
• TestDisk

See also: List of data recovery software

Forensics

• The Coroner's Toolkit
• The Sleuth Kit

Anti-forensics

• USBKill

Disk erasing

• DBAN
• srm

Encryption

• GnuPG
• GnuTLS
• KGPG
• OpenSSL
• Seahorse
• Signal
• TextSecure
• wolfCrypt

Disk encryption

• CrossCrypt
• FreeOTFE and FreeOTFE Explorer
• eCryptfs

Database encryption

• Mydiamo

Firewall

• Coyote Linux
• Firestarter
• IPFilter
• ipfw
• iptables
• M0n0wall
• PeerGuardian
• PF
• pfSense
• Rope
• Shorewall
• SmoothWall
• Untangle
• Vyatta

Network and security monitoring

Main category: Free network management software

Secure Shell (SSH)

• Cyberduck – Mac OS X and Windows client (since version 4.0)
• Lsh – Server and client, with support for SRP and Kerberos authentication
• OpenSSH – Client and server
• PuTTY – Client-only

Other security programs

Main category: Free security software

Theology

Bible study tools

• Go Bible – for Java mobile phones
• Marcion – for Linux and Windows, using Qt framework and embedded MySQL server
• OpenLP – Worship presentation software for churches to display songs, bibles, movies, etc.
• The SWORD Project – free Bible software project

Typesetting

Main category: Free typesetting software

See also

• Comparison of file synchronization software § Open-source
• List of HDL simulators § Free and open-source simulators
• List of optimization software § Free and open-source software
• List of concept- and mind-mapping software § Free and open-source
• List of spreadsheet software § Free and open-source software
• Comparison of FTP client software § Free and open-source software
• GNOME Core Applications
• List of GNU packages
• List of KDE applications
• List of formerly proprietary software
• List of Unix commands

General directories

• AlternativeTo
• CodePlex
• Free Software Directory
• Freecode
• Open Hub
• SourceForge

External links

• Open Source Software Directory (OSSD), a collection of FOSS organized by target audience.
• Open Source Living, a community-driven archive of open-source software (OSS).
• OpenDisc, a pre-assembled ISO image of OSS for the Windows
• List of open-source programs (LOOP) for Windows, maintained by the Ubuntu Documentation Project.
• The OSSwin Project, a list of free and open-source software for Windows