List of free and open-source software packages

This is a list of open-source software packages: Computer software licensed under an open-source license. 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 open source movement and free software movement. However, nearly all software meeting the Open Source Definition is also Free Software, so it is all listed here.

Applied fields 123

CAx

CAD

BRL-CAD — 3D solid modeling computer-aided design and much much more
QCad — 2D CAD (newer versions are no longer open-source)
OpenCASCADE (site)

CAE

Impact (site) — Finite element program
Code-Aster (site) — Full-featured 3D finite element simulation code
Salome (site) — CAE platform for pre / post processing

Finance

GnuCash — Double-entry book-keeping based, personal finance system
JCash
JMoney
JGnash
QuantLib
Grisbi
PayThyme — Payroll software
QuotesViewer (site) — Euronext stock quotes, watchlist
SQL-Ledger — double entry accounting system

Geographic information system

NASA World Wind — similar to Google Earth — Project Site
GRASS GIS
TerraLib — TerraLib is a Geographic information system (GIS) classes and functions library.
OpenMap — Java based programmer's toolkit — Project Site

Math

experix — data acquisition, array arithmetic and math with graphics.
GAP — (Groups, Algorithms and Programming) computational discrete algebra, mainly for group theory.
KSEG — interactive geometry program for exploring Euclidean geometry.
LaTeX — mathematical typesetting system.
MAXIMA — a computer algebra system, based on the original Macsyma
NTL — number theory library
Octave — a MATLAB-style language.
Scilab — similar to MATLAB www.scilab.org
PARI/GP (site) — computer algebra system, number theory functions
R — Computational statistic package.
SINGULAR — polynomial computations, commutative algebra, algebraic geometry, and singularity theory.
Yacas — computer algebra system.
muParser (site) — a mathematical expressions parser library
XNUMBERS (site) — a floating-point add-in for Microsoft Excel.

Science and Measurement

Scanning probe microscopy

Gwyddion (site) — Scientific data analysis
Gxsm (site) — Gnome X Scanning Microscopy - dsp supported scanning probe acquisition

Assistive Technology and Accessibility

Dasher (site) — Unique text input software
EMACspeak (site) — Audio desktop
PowerTalk (site) — Automatic Text narration of presentations

Data storage and management

File archivers

7-Zip [site]
arj
bzip2
DAR (Disk Archiver)
GRZipII (site)
gzip
ha (site) — (historical ppm-based archiver)
PPMd (site)
rzip
Tar (file format)
IZArc [site]

Database management systems (including administration)

Berkeley DB
db4o (object database)
Firebird
Ingres
JEDI Database Desktop
Kexi
MySQL — database server
One$DB
phpMyAdmin
PostgreSQL — database server
SQLite
TOra — database administration and development
GT.M — Multidimensional database

Document editing

Office software suites

Gnome Office
KOffice
NeoOffice [site] — fork of OpenOffice.org to produce a Mac OS X version
OpenOffice.org [site] — similar functionality to Microsoft Office, including file compatibility

Word processing

Note-taking

PDF-writing

Ghostscript
Monkeyscript
PDFCreator
ReportLab — includes an open source PDF library
Scribus — User-friendly but powerful Desktop Publishing
xPDF
OpenOffice.org [site] creates PDFs
NeoOffice [site] creates PDFs

Scientific Text Editors

Spreadsheet Editors

Gnumeric (site) — Part of the Gnome Project, but cross-platform versions are available.
OpenOffice.org [site] Calc
NeoOffice [site] Calc

Text editors

Elvis
FreeDOS edlin
GNU Emacs
Gedit
jEdit — Java-based, many plug-ins, allows folding, has a function browser.
Kate
Katoob
Kedit
KWrite
Nano — A free clone of Pico.
NEdit
Notepad2 — Small and fast with syntax highlighting.
Notepad++ — Fast, tabbed interface with syntax highlighting
SciTE — A cross-platform text editor written using the Scintilla editing component.
Tail For Win32
Vim

Educational

Educational Suites

Art

Learning support

Language

Mathematics

GAP (site) — Groups, Algorithms, Programming - System for Computational Discrete Algebra
GNU Octave (site) — Clone of MATLAB
GNUPlot* (site) — high quality function plotting with command line interface, incorporates GNUFit for nonlinear regression (curve fitting)
KBruch
KGeo
Kig
KmPlot
KPercentage
KSEG
LabPlot (site) — nonlinear regression (curve fitting) - OriginLab( Microcal Origin) Clone
SciGraphica (site) — A better Origin Clone
Maxima (site) — Analytical function handling, similar to the Maple computer algebra system
PARI/GP (site) — computer algebra system, number theory functions, factorisation, elliptical curves
QtiPlot (site) — nonlinear regression (curve fitting) - Microcal Origin Clone
R programming language (site) — very powerful scripting-language with a strong focus on statistical functions, similar to S programming language
- RKWard (site) — frontend to R
Tux, of Math Command (site) — Missile Command-themed, fast-action math quiz
XMgrace (site) — 2D drawing, data plotting, nonlinear regression (curve fitting), formerly called xmgr
Yacas (site)

... *Note: This software is no longer under the GPL but it is still free. Older versions of this software are still open-source.

Science

Celestia—a 3D space simulation program.
experix — data acquisition and device control with graphical data analysis
Kalzium
KStars
Cartes du Ciel — http://www.stargazing.net/astropc/; sky chart drawing, planetarium and more

Typing

Other educational programs

KEduca

File managers

Games

Graphical user interface

Windowing system

Desktop environments

Window managers

Groupware

Kolab
Kroupware
OpenGroupware.org
phpBB — PHP-based bulletin board package
PHProjekt

Content management systems

Apache Lenya — Apache Software license, Java/XML, based on Apache Cocoon
b2evolution
Drupal
e107
Envolution
Geeklog
Joomla!
Mambo (CMS)
myPHPNuke (site)
Nuxeo CPS
PHP-Nuke
phpWebSite
Plone
Postnuke
Scoop
Sioux (site) — GPL'ed
Slashcode
Typo3
Xaraya
eZpublish
Xoops
WordPress (site) — GPL'ed

Weblog systems

Wiki software

DokuWiki (site) — written in PHP and works on plain text file.
ErfurtWiki (site) — based on WikiWikiWeb and written in PHP.
Flexwiki (site) — written in ASP.NET
Kwiki — written in Perl
MediaWiki — powers Wikipedia.
OpenWiki
PmWiki
PhpWiki — based on WikiWikiWeb and written in PHP.
TiddlyWiki — runs entirely on a single file, using JavaScript. There is also a server-side variation.
TikiWiki
Twiki
UseModWiki
WackoWiki
WikkaWiki (site) — lightweight and flexible wiki engine written in PHP, forked from WakkaWiki
XWiki
Zwiki (site) — a wiki product add-on to Zope

Media

Multimedia codecs / containers / splitters

Audio editors / audio management

See Free audio software

Graphics

Blender3d [site] — 3D modeling, animation, rendering, post-production, interactive creation and playback
Crystal Space — 3D gaming graphics engine
Dia — Diagram creation GUI with shapes, links, connection points (like Visio)
Graphviz — Automatic graph creation from text file input. Output formats: GIF, SVG, Postscript, VRML and more.
The GIMP [site] — Photoshop replacement. Excellent tool for image editing. Very powerful.
GIMPShop [site] — Bitmap Graphics Editor. Similiar menus and functions to Photoshop. Very powerful. Full featured. Many plugins available.
GOCR/JOCR — OCR program
Hugin — Image combining, panorama creation, cross platform
Inkscape — SVG Vector graphics editor
JImage Mosaic
KChart
Kivio
Liquid — 3D graphics editor
Moonlight 3D
NeoOffice site Draw
OpenOffice.org site Draw
Panorama Tools
Simple DirectMedia Layer — a platform independent graphics library, primarily intended for game development
Sodipodi — SVG Vector graphics editor
Wings 3D — 3D Subdivisionmodeler
Xfig

Image galleries

Image viewers

Media players

Video editing

CD-writing software

Networking and Internet

E-mail

GNU Mail (site) — Part of the GNUStep Project
KMail
Magic Mail Monitor 3
Mahogany Mail
Mozilla Mail & Newsgroups [site] — part of Mozilla Application Suite
Mozilla Thunderbird [site]— A standalone Gecko-based e-mail and newsreader program derived from Mozilla's Mail component.
Mutt
Novell Evolution
Phoenix Mail
POPFile
Sylpheed
FreePOPs [site] — A plugin-based application that allow POP3 access to many web-based email services

HTML Editors

Nvu [site] - WYSIWYG HTML editor based on Mozilla Composer

Instant messaging

Adium — Multi-protocol instant messaging client for Mac OS X with encryption
aMSN — Alvaro's Messenger, or Another MSN Messenger clone
CenterICQ
Exodus
Fire
Gaim
Jabberzilla
Kopete
Licq
Mercury Messenger (site) (previsously dMSN)
mICQ
Miranda IM
Psi
Simple Instant Messenger
Tkabber
WinJab

Instant messaging servers

ejabberd — Jabber server
IServerd — ICQ-compatible server
xmppd.py — Jabber server

sipX — SIP Communications Server
Asterisk — Telephony and VoIP server
Chatzilla — Mozilla-based IRC chat client
GnomeMeeting — Video conferencing application for GNOME
irssi — text-mode IRC chat client
Slrn — a newsreader
Speak Freely — Internet voice chat
XChat — IRC chat client, Windows version is shareware
XChat 2 — IRC chat client, an XChat clone, but is a freeware Windows-only version

File transfer

FileZilla
gFTP
lftp
NcFTP (site)
Samba — an implementation of the Microsoft-compatible SMB network protocols
TrueDownloader (site)
WinSCP

P2P file sharing

Azureus — A Java-based Bittorrent client.
BitTorrent
ctorrent
DC++
eMule
Freenet (site) — Secure Filesharing with encryption
giFT
Gnucleus
GNUnet
Lime Wire
MLdonkey
mutella (site) — A text mode gnutella client
Nodezilla
Shareaza — Open sourced as of June 2004
Rodi
WASTE

Remote access

Web browsers

Webcam

Dorgem
Fwink

Webgrabber

0W-httpd (site) (aka ZeroWait httpd) — light and fast http server
lighttpd (site) — Resource sparing but also fast and full featured HTTP Server
3proxy (site) — HTTP/HTTPS/FTP/SOCKS v4/v4.5/v5/POP3 proxy + TCP and UDP portmappers
Apache — the most popular web server
Jakarta Tomcat — a servlet container and standalone webserver
NetKernel — an internet application server
JBoss an application server
nginx (site) — high perfomance http and reverse proxy server
Oops! (site) — web proxy/cache server
Squid cache — web proxy cache
Zope — a web application server

Middleware

ObjectWeb JOnAS — Java Open Application Server, a J2EE application server
ObjectWeb JORAM — a JMS/SOAP message oriented middleware
ObjectWeb C-JDBC — Clustered-JDBC, a driver for drivers of RDBMS
ObjectWeb Celtix — a Java enterprise service bus (ESB) runtime
ObjectWeb Shark — a workflow server with a difference
ObjectWeb JOTM — Java Open Transaction Manager
ObjectWeb OSCAR — an implementation of the Open Services Gateway Initiative (OSGi) framework
ObjectWeb ProActive — Java library for parallel, distributed, and concurrent computing
ObjectWeb Speedo — an implementation of the JDO specification

Other networking programs

JBidWatcher — Java-based auction bid watching program
OpenLDAP — an open source LDAP server
openVXI — an open source VoiceXML interpreter
gpppkill — a tool for disconecting idle pppd conections
throttled — QoS tool

Operating systems

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

Password management

Personal information managers

Chandler — In development by Mitch Kapor and the OSAF.
Elephant Memory
KAddressbook
KNotes
KonsoleKalendar
Kontact
KOrganizer
Mozilla Calendar — A Mozilla-based, multiplatform calendar program.
Multisync (software)
Task Coach — Your friendly task manager.
Treeline
Novell Evolution

Programming language support

ArgoUML — ArgoUML is a modelling tool that helps you design using UML diagrams
DJGPP — a 32-bit DOS port of GCC and other GNU utilities
Eclipse IDE — an extensible integrated development environment
Erlang
Forth
GCC — a set of compilers for multiple programming languages and platforms, including
- C
- C++
- Ada
- Java
- Pascal
- Fortran
CLISP — a Common Lisp interpreter and bytecode-compiler
CVS — a source code version control system
Jikes — Java compiler
MinGW — Windows port of GCC
MMIXware — simulator for MMIXAL language and MMIX processor
MUMPS — aka M GT.M is a GNU/Linux Open Source
Objective CAML — a practical and fast functional OO language
Perl — a programming language strong on text processing
PHP — a scripting language designed for web site applications
Prolog — Logic programming
Python — A high-level scripting language
Refal
Rexx
Ruby
Subversion — A version control system
Tcl/Tk — A high-level scripting language with a graphical toolkit
experix — command line and stack system for data acquisition and analysis and graphics

Publishing

Screen savers

Security

Anti-virus

Encryption

Firewall

Monitoring

MRTG — monitor traffic and create graphs over time
Munin — Like MRTG but prettier
Nagios — highly configurable systems and network monitoring
Rainmeter

SSH

Other security programs

Ethereal — a network protocol analyzer
Snort
NMap — Advanced host and port scanning tool
Stunnel — an open source Secure Sockets Layer filter
PyKeylogger — an open source keylogger for windows, written in Python programming language

Other

Active2 — (codenamed "CNNSlayer") — Codebase project for the Indymedia network and its allies
AstroGrep — Grep with a GUI
BibleTime — Study Bible software
Bochs — PC emulator
Cygwin — open source Unix environment for Win32
KRename — batch renaming of files
Link Checker — checks HTML documents for broken links
Mantis Bug Tracking System — PHP/MySQL-based bug tracking system
Memtest86 — stress-tests RAM on x86 machines
Open Scene Graph
TeX — a document formatting system
Vitrite — allows transparency in Windows 2000/XP programs
WINE — Windows executable support on Linux/BSD

CD compilations of open-source software for Windows

GNUWin II
Open Source Software CD — ~700 MB, most complete, updated monthly, available via BitTorrent/HTTP/FTP
TheOpenCD — ~300 MB, most polished, available via BitTorrent/HTTP/FTP
WinLibre

External links

OSDir.com - stable open source applications that are ready for deployment
FSF/UNESCO Free Software Directory - a catalog of useful free software
Freshmeat software catalog - the Web's largest index of Unix and cross-platform software
Linux Links: Software - Linux software catalog
Linux Online - Applications - Linux software catalog
Cherry Hill Linux User's Group Open source software equivalents
The table of equivalents / replacements / analogs of Windows software in Linux
Open source software for windows and their closed source equivalents
OSSwin: Open source for Windows Comprehensive and up to date
VersionChecker. Gives some Open source and freeware last versions
Schoolforge-UK software list - educational software compiled by the Schoolforge-UK community