Gajim 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". Features Gajim aims to be an easy to use and fully-featured XMPP client. Gajim uses PyGTK as GUI library, which makes it cross-platform compatible. Some of its features: Group chat support (with MUC protocol) 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), 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 (using the "python-farstream" library, no support in Windows yet) OMEMO 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. Third-party plugins Gajim supports third-party plugins. Examples include: Gajim-OMEMO, adding support for OMEMO. See also Comparison of instant messaging clients References Reviews Joe 'Zonker' Brockmeier Review: Gajim Jabber client on Linux.com, September 16, 2005 Mihai Marinof, Gajim Review. Free Jabber client for Linux. on Softpedia, 7 November 2006 External links Official wiki XMPP Software: Clients Unofficial XMPP/Jabber clients and OS usage statistics (5) by Lucas Nussbaum Free instant messaging clients Free XMPP clients Instant messaging clients that use GTK Software that uses PyGTK Windows instant messaging clients Free software programmed in Python Applications using D-Bus