List of free and open-source software packages

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.^[1] 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.

Artificial intelligence[edit]

General AI[edit]

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[edit]

AForge.NET – computer vision, artificial intelligence and robotics library for the .NET Framework
OpenCV – computer vision library in C++

Machine learning[edit]

See List of open-source machine learning software
See Data Mining below
See R programming language – packages of statistical learning and analysis tools

Planning[edit]

TREX – Reactive planning

Robotics[edit]

ROS – Robot Operating System
Webots – Robot Simulator
YARP – Yet Another Robot Platform

Assistive technology[edit]

Speech (synthesis and recognition)[edit]

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[edit]

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

CAD[edit]

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
SolveSpace - 2D and 3D CAD, constraint-based parametric modeler with simple mechanical simulation capabilities.
BRL-CAD - a constructive solid geometry (CSG) solid modeling computer-aided design (CAD) system.

Electronic design automation (EDA)[edit]

Computer simulation[edit]

Blender – 3D computer graphics software toolset used for creating animated films, visual effects, art, 3D printed models, and motion graphics.
FlightGear - atmospheric and orbital flight simulator with a flight dynamics engine (JSBSim) that is used in a 2015 NASA benchmark^[2] to judge new simulation code to space industry standards.
SimPy – Queue-theoretic event-based simulator written in Python

Cybersecurity[edit]

Antivirus[edit]

Data loss prevention[edit]

MyDLP

Data recovery[edit]

Forensics[edit]

Anti-forensics[edit]

Disk erasing[edit]

DBAN
srm

Encryption[edit]

Disk encryption[edit]

Firewall[edit]

Network and security monitoring[edit]

Snort – Network intrusion detection system (IDS) and intrusion prevention system (IPS)
OpenVAS – software framework of several services and tools offering vulnerability scanning and vulnerability management

Secure Shell (SSH)[edit]

Cyberduck – macOS 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

Password management[edit]

Bitwarden
KeePass
KeePassXC (multiplatform fork able to open KeePass databases)
Password Safe
Mitro
Pass

Other cybersecurity programs[edit]

Data storage and management[edit]

Backup software[edit]

Database management systems (including administration)[edit]

Data mining[edit]

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
FrontlineSMS – Information distribution and collecting via text messaging (SMS)
Konstanz Information Miner (KNIME)
OpenNN – Open-source neural networks software library written in C++
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[edit]

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[edit]

Disk partitioning software[edit]

Enterprise search engines[edit]

ApexKB, formerly known as Jumper
Lucene
Nutch
Solr
Xapian

ETLs (Extract Transform Load)[edit]

File archivers[edit]

File systems[edit]

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.

Desktop publishing[edit]

Collabora Online Draw and Writer - Enterprise-ready edition of LibreOffice accessible from a web browser. The Draw application is for flyers, newsletters, brochures and more, Writer has most of the functionality too.^[3]
Scribus – Designed for layout, typesetting, and preparation of files for professional-quality image-setting equipment. It can also create animated and interactive PDF presentations and forms.

E-book management and editing[edit]

Calibre – Cross-platform suite of e-book software
Collabora Online Writer - Enterprise-ready edition of LibreOffice accessible from a web browser. Allows exporting in the EPUB format.^[4]
Sigil – Editing software for e-books in the EPUB format

Educational[edit]

Educational suites[edit]

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[edit]

KGeography – Educational game teaching geography

Learning support[edit]

Language[edit]

Kiten

Typing[edit]

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

File managers[edit]

Finance[edit]

Accounting[edit]

GnuCash – Double-entry book-keeping
HomeBank – Personal accounting software
KMyMoney – Double-entry book-keeping
LedgerSMB – Double-entry book-keeping
RCA open-source application – management accounting application
SQL Ledger – Double-entry book-keeping
TurboCASH – Double-entry book-keeping for Windows
Wave Accounting – Double-entry book-keeping

Cryptocurrency[edit]

Bitcoin – Blockchain platform, peer-to-peer decentralised digital currency
Ethereum – Blockchain platform with smart contract functionality

CRM[edit]

CiviCRM – Constituent Relationship Management software aimed at NGOs
iDempiere – Business Suite, ERP and CRM
SuiteCRM – Web-based CRM

ERP[edit]

Adempiere – Enterprise resource planning (ERP) business suite
Compiere – ERP solution automates accounting, supply chain, inventory, and sales orders
Dolibarr – Web-based ERP system
ERPNext – Web-based open-source ERP system for managing accounting and finance
Ino erp – Dynamic pull based system ERP
JFire – An ERP business suite written with Java and JDO
metasfresh – ERP Software
Odoo – Open-source ERP, CRM and CMS
Openbravo – Web-based ERP
Tryton – Open-source ERP

Human resources[edit]

OrangeHRM – Commercial human resource management

Microfinance[edit]

Cyclos – Software for microfinance institutions, complementary currency systems and timebanks
Mifos – Microfinance Institution management software

Process management[edit]

Bonita Open Solution – Business Process Management

Trading[edit]

jFin – Java-based trade-processing program
QuickFIX – FIX protocol engine written in C++ with additional C#, Ruby, and Python wrappers
QuickFIX/J – FIX protocol engine written in Java

Games[edit]

Action[edit]

Xonotic – First-person shooter that runs on a heavily modified version of the Quake engine known as the DarkPlaces engine
Warsow – First-person shooter fast-paced arena FPS game that runs on the Qfusion engine

Application layer[edit]

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

Emulation[edit]

MAME – Multi-platform emulator designed to recreate the hardware of arcade game systems
RetroArch – Cross-platform front-end for emulators, game engines and video games
PCSX2 - A PlayStation 2 emulator designed to recreate the hardware of PlayStation 2 systems
PPSSPP - A PlayStation Portable emulator designed to recreate the hardware of PlayStation Portable systems
RPCS3 - A PlayStation 3 emulator designed to recreate the hardware of PlayStation 3 systems
Dolphin (emulator) - A GameCube and Wii emulator designed to recreate the hardware of GameCube and Wii systems
Citra (emulator) - A Nintendo 3DS and Wii emulator designed to recreate the hardware of Nintendo 3DS systems
Cemu - A Wii U emulator designed to recreate the hardware of Wii U systems
Yuzu (emulator) - a Nintendo Switch emulator

Puzzle[edit]

Pingus – Lemmings alternative with penguins instead of lemmings.

Sandbox[edit]

Minetest – An open source voxel game engine.

Simulation[edit]

OpenTTD – Business simulation game in which players try to earn money via transporting passengers and freight by road, rail, water and air.
SuperTuxKart – Kart racing game that features mascots of various open-source projects.

Strategy[edit]

0 A.D. – Real-time strategy video game
Freeciv – Turn-based strategy game inspired by the proprietary Sid Meier's Civilization series.
The Battle for Wesnoth – Turn-based strategy video game with a fantasy setting

Genealogy[edit]

Gramps (software) – a free and open source genealogy software.

Geographic information systems[edit]

QGIS – cross-platform desktop geographic information system (GIS) application that supports viewing, editing, and analysis of geospatial data.

Graphical user interface[edit]

Desktop environments[edit]

Window managers[edit]

Windowing system[edit]

Groupware[edit]

Content management systems[edit]

Wiki software[edit]

Healthcare software[edit]

Integrated library management software[edit]

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[edit]

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
Karbon – Scalable vector drawing application in KDE
Krita – Digital painting, sketching and 2D animation application, with a variety of brush engines
LazPaint – Lightweight raster and vector graphics editor, aimed at being simpler to use than GIMP
LightZone – Free, open-source digital photo editor software application.
RawTherapee – Digital image workflow management aimed at RAW photo processing

Mathematics[edit]

Spreadsheet[edit]

LibreOffice Calc algebraic operations on table cells - descriptive data analysis

Media[edit]

Audio editors, audio management[edit]

CD/USB-writing software[edit]

Flash animation[edit]

Pencil2D – For animations
SWFTools – For scripting

Game engines[edit]

Godot – Application for the design of cross-platform video games.
Blender Game Engine
Leela Chess Zero – Universal Chess Interface chess engine
Open3DEngine
Stockfish – Universal Chess Interface chess engine
Stride – (prev. Xenko) 2D and 3D cross-platform game engine originally developed by Silicon Studio.

Graphics[edit]

2D[edit]

Pencil2D – Simple 2D graphics and animation program
Synfig – 2D vector graphics and timeline based animation
TupiTube (formerly KTooN) – Application for the design and creation of animation
OpenToonz – Part of a family of 2D animation software
Krita – Digital painting, sketching and 2D animation application, with a variety of brush engines
Blender – Computer graphics software, Blender's Grease Pencil tools allow for 2D animation within a full 3D pipeline.
mtPaint – raster graphics editor for creating icons, pixel art

3D[edit]

Blender – Computer graphics software featuring modeling, sculpting, texturing, rigging, simulation, rendering, camera tracking, video editing, and compositing
OpenFX – Modeling and animation software with a variety of built-in post processing effects
Seamless3d – Node-driven 3D modeling software
Wings 3D – subdivision modeler inspired by Nendo and Mirai from Izware.

Image galleries[edit]

Image viewers[edit]

Multimedia codecs, containers, splitters[edit]

Television[edit]

Video converters[edit]

Video editing[edit]

Video encoders[edit]

Video players[edit]

Other media packages[edit]

Celtx – Media pre-production software
Open Broadcaster Software (OBS) – Cross-platform streaming and recording program

Networking and Internet[edit]

Advertising[edit]

Revive Adserver

Communication-related[edit]

Asterisk – Telephony and VoIP server
Ekiga – Video conferencing application for GNOME and Microsoft Windows
ConferenceXP – video conferencing application for Windows XP or later
FreePBX – Front-end and advanced PBX configuration for Asterisk
FreeSWITCH – Telephony platform
Jami – Cross-platform, peer to peer instant-messaging and video-calling protocol that offers end-to-end encryption and SIP client
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
Tox – Cross-platform, peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption

E-mail[edit]

Geary – Email client based on WebKitGTK+
Mozilla Thunderbird – Email, news, RSS, and chat client

File transfer[edit]

Grid and distributed processing[edit]

Instant messaging[edit]

IRC Clients[edit]

Middleware[edit]

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
OpenRemote – IoT Middleware
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[edit]

Akregator – Platforms running KDE
Liferea – Platforms running GNOME
NetNewsWire – macOS, iOS
News Reader
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[edit]

Popcorn Time – Multi-platform, free, and open-source media player
qBittorrent – Alternative to popular clients such as μTorrent
Transmission – BitTorrent client

Portal Server[edit]

Remote access and management[edit]

Routing software[edit]

Web browsers[edit]

Graphical[edit]

Chromium – web browser using the custom Blink engine from which Google Chrome draws its source code
Brave – privacy-focused web browser based on the Chromium browser.
Falkon – web browser based on the Blink engine, a KDE project
Firefox – Mozilla-developed web browser using the Gecko layout engine
Waterfox – Firefox fork supporting legacy extensions (64-bit only)
Pale Moon - a customizable fork of Firefox
Tor Browser – onion-routed browser by The Tor Project, based on Firefox ESR
GNOME Web - WebKit-based web browser for the GNOME desktop environment
Midori – Lightweight web browser using the WebKit layout engine
qutebrowser - keyboard operated Webkit-based browser with vi-like keybindings
SeaMonkey Navigator – the SeaMonkey internet suite's web browser
Surf - a minimal tab-less browser by suckless.org using WebKitGTK

Text-based[edit]

Lynx - a text-based web browser developed since 1992
Links - a text-based browser with a framebuffer-based graphical mode
Elinks - featureful fork of Links with javascript support

Webcam[edit]

Cheese – GNOME webcam application
Guvcview – Linux webcam application

Webgrabber[edit]

Web-related[edit]

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
FileZilla – FTP
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 – Web proxy cache
Vaadin – Fast, Java-based framework for creating web applications
Varnish – 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

Web search engines[edit]

Searx – Self-hostable metasearch engine
YaCy – P2P-based search engine

Other networking programs[edit]

JXplorer – LDAP client
Nextcloud – A fork of ownCloud
OpenLDAP – LDAP server
ownCloud – File share and sync server
Wireshark – Network monitor

Office suites[edit]

Apache OpenOffice (formerly known as OpenOffice.org)
Calligra Suite – The continuation of KOffice under a new name
Collabora Online - Enterprise-ready edition of LibreOffice, web application, mobile phone, tablet, Chromebook and desktop (Windows, macOS, Linux)^[5]
LibreOffice – Independent Work of OpenOffice.org with a number of enhancements
ONLYOFFICE Desktop Editors – An open-source offline edition of the Cloud

Operating systems[edit]

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.

Emulation and Virtualisation[edit]

DOSBox – DOS programs emulator (including PC games)
VirtualBox – hosted hypervisor for x86 virtualization

Personal information managers[edit]

Chandler – Developed by the OSAF
KAddressBook
Kontact
KOrganizer
Mozilla Calendar – Mozilla-based, multi-platform calendar program
Novell Evolution
Perkeep – Personal data store for pictures
Project.net – Commercial Project Management
TeamLab – Platform for project management and collaboration

Programming language support[edit]

Bug trackers[edit]

Code generators[edit]

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
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[edit]

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[edit]

Debuggers (for testing and trouble-shooting)[edit]

GNU Debugger – A portable debugger that runs on many Unix-like systems
Memtest86 – Stress-tests RAM on x86 machines
Xnee – Record and replay tests

Integrated development environments[edit]

Version control systems[edit]

Reference management software[edit]

Risk Management[edit]

Active Agenda – Operational risk management and Rapid application development platform

Science[edit]

Bioinformatics[edit]

Cheminformatics[edit]

Electronic Lab Notebooks[edit]

ELOG
Jupyter

Geographic Information Systems[edit]

Geoscience[edit]

Grid computing[edit]

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

Microscope image processing[edit]

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 – 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
VTK – C++ toolkit for 3D computer graphics, image processing, and visualisation
3DSlicer – Medical image analysis and visualisation

Molecular dynamics[edit]

GROMACS – Protein, lipid, and nucleic acid simulation
LAMMPS – Molecular dynamics software
MDynaMix – General-purpose molecular dynamics, simulating mixtures of molecules
ms2 - molecular dynamics and Monte Carlo simulation package for the prediction of thermophysical properties of fluids
NWChem – Quantum chemical and molecular dynamics software

Molecule viewer[edit]

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[edit]

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

Plotting[edit]

Veusz

Quantum chemistry[edit]

CP2K – Atomistic and molecular simulation of solid-state, liquid, molecular, and biological systems

Screensavers[edit]

Statistics[edit]

R Statistics Software
LimeSurvey – Online survey system

Theology[edit]

Bible study tools[edit]

Go Bible – A free Bible viewer application for Java mobile phones
Marcion – Coptic–English/Czech dictionary
OpenLP – A worship presentation program licensed under the GNU General Public License
The SWORD Project – The CrossWire Bible Society's free software project

Typesetting[edit]

References[edit]

^ Richard Stallman (July 13, 2011). "Why Open Source misses the point of Free Software". Retrieved August 24, 2011.
^ "Further Development of Verification Check-casesforSix-Degree-of-Freedom Flight Vehicle Simulations" (PDF). NASA Engineering and Safety Center Academy. 2015. Archived (PDF) from the original on March 10, 2021.
^ "Create great flyers, newsletters, brochures and more with open source software". opensource.com.{{cite web}}: CS1 maint: url-status (link)
^ Bärwaldt, Eric (2020). "Collaborative online office solutions". Admin Network & Security. 60/2020. ...users can also convert text files to the ePub format for displaying appear on ebook readers or with desktop software for reading ePub files.
^ Bärwaldt, Eric (2020-09-01). "Working Together Tools for collaborative office work". Linux Magazine (238/2020). For cross-platform use, the suite not only supports the Open Document Format (ODF) but also all newer Microsoft formats, which makes interaction with other office suites easier.{{cite journal}}: CS1 maint: url-status (link)

External links[edit]

Open Source Software Directory (OSSD), a collection of FOSS organized by target audience.
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