Lijst van opensourcesoftware
Hieronder volgt een (incomplete) lijst van opensourcesoftware of vrije software met een lemma op Wikipedia.

Besturingssystemen
BSD
Darwin OS
Haiku
Inferno
Linux
Minix
OpenSolaris
ReactOS
Syllable

Linuxdistributies
(vrije software)

Arch Linux
Debian
Ubuntu
Linux Mint
Fedora
Linux From Scratch
Slackware
Overige

BSD-distributies

DragonFly BSD
FreeBSD
GhostBSD
NAS4Free
NetBSD
OpenBSD
TrueNAS
TrueOS
pfSense

Desktopsoftware

Bestandsbeheer

Beagle
Brasero
Dolphin
FileZilla
GNOME Commander
K3b
Konqueror
Krusader
GNOME Files
PCMan File Manager
Strigi
Thunar

Computerspellen
0 A.D.
BVE TrainSim
FlightGear
Freeciv
Globulation 2
Minetest
OpenArena
OpenTTD
Pingus
SuperTux
SuperTuxKart
Tux Racer
Wesnoth

Databases
Firebird
MariaDB
MonetDB
PostgreSQL
SQLite

Desktopomgevingen
Equinox
GNOME
KDE
LXDE
MATE
Razor-qt
ROX Desktop
Unity
Xfce

Educatief
ATutor
Celestia
Dokeos
KStars
OpenTeacher
Sakai Project
Stellarium

Encryptie en wachtwoordbeheer 
AxCrypt
Bitwarden
GNOME Keyring
KWallet
Seahorse
TrueCrypt

Game engines
Godot
Irrlicht

Grafisch
Art of Illusion
Blender
Darktable
digiKam
Eye of GNOME
F-Spot
Geeqie
GIMP
GPicView
gThumb
Gwenview
Inkscape
KolourPaint
KSnapshot
Krita
MyPaint
Persistence of Vision Raytracer
Viewnior
White dune

Hulpprogramma's
Bash
GRUB
Orca
NonVisual Desktop Access

Internet

Webbrowsers

Brave
Camino
Chromium
GNOME Web
Galeon
Gollum
Konqueror
Lynx
Mozilla Firefox
Shiira
SRWare Iron
Origyn Web Browser

E-mail
Evolution
Icedove
KMail
Mozilla Thunderbird
Mutt
SeaMonkey
Sylpheed

Chat
aMSN
ChatZilla
Exodus
Irssi
Jabber
Konversation
Kopete
Pidgin
Signal (software)
Smuxi
XChat

Filesharing 
eMule
FrostWire
KTorrent
MLDonkey
Transmission
Vuze (voorheen Azureus)

VoIP
Ekiga
KPhone
QuteCom
Twinkle

Webontwikkeling
Amaya
Firebug
NVU
Quanta Plus

Kantoorsoftware

Desktoppublishing
AbiWord
Apache OpenOffice
Calligra Suite
Evince
Gedit
GnuCash
Gnumeric
Kate
KOffice
LaTeX
LibreOffice
NeoOffice
Notepad++
Okular
Scribus
Tomboy

Praktijkmanagement
Open Dental

Programmeeromgevingen
KDevelop

Multimedia

Audio
Amarok (KDE)
Audacious
Audacity
Clementine
JuK (KDE)
LMMS
MuseScore
musikCube
Nightingale
Rhythmbox
Songbird
Sound Juicer
XMMS

Video
GNOME Videos
Kaffeine
Kdenlive
Media Player Classic
MPlayer
VLC media player

Systeemsoftware
GParted
Infrarecorder
KInfocenter

Virtualisatie en emulatie
DOSEMU
PlayOnLinux
QEMU
VirtualBox
 Wine

Serversoftware 
Apache
Apache Lucene
CVS
XAMPP
XINS

Webapplicaties
diaspora*
DokuWiki
Drupal
Friendica
GNU social
Joomla!
Mastodon
MediaWiki
MMBase
OsCommerce
phpBB
Plone
RenovatioCMS
Sendmail
SquirrelMail
TiddlyWiki
TYPO3
Umbraco
WordPress

Wiskunde en statistiek
Euler math toolbox
GNU Octave
Kig
Maxima
OpenFOAM
R
SageMath
Schoonschip
Scilab

Zie ook
Lijst van computerprogramma's

Externe links
Freecode
SourceForge
Open Source Software List
Opensourcesoftware
Opensourcesoftware en vrije software