Gajim

Gajim main window (version 1.8.2)
Developer(s)	Gajim Developers
Initial release	May 21, 2004[1]
Stable release	1.8.4[2]  / 26 November 2023
Repository	dev.gajim.org/gajim/gajim
Written in	Python
Operating system	BSD, Linux, macOS, Microsoft Windows
Standard(s)	XMPP
Available in	Multi language[3]
Type	Instant messaging client
License	GPL-3.0-only
Website	gajim.org

Gajim /ɡɛˈʒiːm/^[4] is an instant messaging client for the XMPP protocol which uses the GTK toolkit. The name Gajim is a recursive acronym for Gajim's a jabber instant messenger. Gajim runs on Linux, BSD, macOS, and Microsoft Windows. Released under the GPL-3.0-only license, Gajim is free software. A 2009 round-up of similar software on Tom's Hardware found version 0.12.1 "the lightest and fastest jabber IM client".^[5]

Features

Gajim aims to be an easy to use and fully-featured XMPP client. Gajim uses GTK (PyGObject) as GUI library, which makes it cross-platform compatible. Some of its features:

• Group chat support
• Emojis, Avatars, File transfer
• Systray icon, Spell checking
• TLS, OpenPGP and end-to-end encryption support (OpenPGP not available under Windows until version 0.15),^[6]
• Transport Registration support
• Service Discovery including Nodes
• Wikipedia, dictionary and search engine lookup
• Multiple accounts support
• D-Bus Capabilities
• XML Console
• Jingle voice and video support^[7] (using the "python-farstream" library, no support in Windows yet),^{[8] [citation needed]}FAQ says it's not supported yet, at least not under windows^[9]
• OMEMO encryption
• HTTP file upload

Gajim is available in Basque, Bulgarian, Chinese, Croatian, Czech, English, Esperanto, French, German, Italian, Norwegian (Bokmål), Polish, Russian, Spanish, Slovak, Swedish, Ukrainian and others.^[3]

Third-party plugins

Gajim supports various third-party plugins (official list).