DokuWiki (site)— written in PHP and works on plain text file.
ErfurtWiki (site)— based on WikiWikiWeb and written in PHP.
Flexwiki (site)— written inASP.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 Javascrīpt. There is also a server-side variation.
TikiWiki
Twiki
UseModWiki
WackoWiki
WikkaWiki (site)— lightweight and flexible wiki engine written inPHP, forked fromWakkaWiki
XWiki
Zwiki (site)— a wiki product add-on toZope

[edit]

Media

[edit]

Multimedia codecs/ containers / splitters

[edit]

Audio editors/ audio management

SeeFree audio software

[edit]

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, Postscrīpt, 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—OCRprogram
Hugin— Image combining, panorama creation, cross platform
Inkscape—SVGVector graphics editor
JImage Mosaic
KChart
Kivio
Krita
Liquid— 3D graphics editor
Moonlight 3D
NeoOffice siteDraw
Pixen[site] — A pixel editing tool for Mac OS X, primarily intended for editing small images.
POV-Ray
OpenOffice.org siteDraw
Panorama Tools
Simple DirectMedia Layer— a platform independent graphics library, primarily intended for game development
Sodipodi—SVGVector graphics editor
Wings 3D— 3D Subdivisionmodeler
Xfig

See alsoList of diagramming software

[edit]

Image galleries

[edit]

Image viewers

[edit]

Media players

Foobar2000(Not really open source. Seelicense)
AmaroK
Beep Media Player(BMPxwill succeed BMP[1])
CoolPlayer
K!TV
Kaffeine
Media Player Classic
MPlayer
musikCube
VLC media player
Totem
Xine
XMMS
Zinf

[edit]

Video editing

[edit]

CD-writing software

[edit]

Networking and Internet

[edit]

E-mail

GNU Mail (site)— Part of the GNUStep Project
KMail
Magic Mail Monitor 3
Mahogany Mail
Mozilla Mail & Newsgroups[site] — part ofMozilla Application Suite
Mozilla Thunderbird[site]— A standaloneGecko-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

[edit]

HTML Editors

Nvu[site] - WYSIWYG HTML editor based onMozilla Composer

[edit]

Instant messaging

Adium— Multi-protocolinstant messagingclient forMac OS Xwith encryption
aMSN— Alvaro's Messenger, or Another MSN Messengerclone
CenterICQ
Exodus
Fire
Gaim
Jabberzilla
Kopete
Licq
Mercury Messenger (site)(previsously dMSN)
mICQ
Miranda IM
Psi
Simple Instant Messenger
Tkabber
WinJab

[edit]

Instant messaging servers

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

[edit]

Communication-related

sipX— SIP Communications Server
Asterisk— Telephony andVoIPserver
BitchX— A text-based IRC client
Chatzilla— Mozilla-based IRC chat client
GnomeMeeting— Video conferencing application forGNOME
irssi— text-mode IRC chat client
Slrn— anewsreader
Speak Freely— Internet voice chat
XChat— IRC chat client, Windows version isshareware
XChat 2— IRC chat client, an XChat clone, but is afreewareWindows-only version

[edit]

File transfer

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

[edit]

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
Valknut— A GUI client for the DC filesharing network
WASTE

[edit]

[edit]

[edit]

[edit]

[edit]

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
JBossan 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
Apache Cocoon— a web application framework

[edit]

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

[edit]

Other networking programs

JBidWatcher— Java-based auction bid watching program
OpenLDAP— an open sourceLDAPserver
openVXI— an open sourceVoiceXMLinterpreter
gpppkill— a tool for disconecting idle pppd conections
throttled— QoS tool

[edit]

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.

[edit]

Passwordmanagement

[edit]

Personal information managers

Chandler— In development byMitch Kaporand theOSAF.
Elephant Memory
KAddressbook
KNotes
KonsoleKalendar
Kontact
KOrganizer
Mozilla Calendar— AMozilla-based, multiplatform calendar program.
Multisync (software)
Task Coach— Your friendly task manager.
Treeline
Novell Evolution

[edit]

Programming languagesupport

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