Pidgin
Open Source
Pidgin is a free and open-source chat client which supports AIM, Google Talk, ICQ, XMPP protocols.
Jitsi
Open Source
Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.
Psi
Open Source
Psi is a free instant messaging application designed for the XMPP network (including Google Talk). Fast and lightweight, Psi is fully open-source and compatib…
Franz
Free
Franz is a free messaging app /former emperor of Austria, that combines chat & messaging services into one application.
Gajim
Open Source
Gajim is an instant messaging client for the XMPP protocol which uses the GTK+ toolkit.
qutIM
Open Source
qutIM is free and open-source multiprotocol (ICQ, Jabber, Mail.Ru, IRC, VKontakte) instant messenger.
Finch
Open Source
Finch is a console-based IM program that lets you sign on to AIM, Jabber, MSN, Yahoo!, and other IM networks. It runs on Unixes. It uses GLib and ncurses.
Trillian
Freemium
Trillian is a proprietary multiprotocol instant messaging application.
Empathy
Open Source
Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication ov…
Wire
Free
Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser cl…
ICQ
Free
ICQ is an open source instant messaging software.
Instantbird
Open Source
Instantbird is a cross-platform instant messaging client based on Mozillas XULRunner and the open source library libpurple used in Pidgin.
Psi+
Open Source
Psi is a cross-platform powerful XMPP/Jabber client (Qt, C++) designed for the Jabber power users. Psi+ is a development branch of Psi IM XMPP/Jabber client.
YakYak
Open Source
YakYak is a desktop chat client for Google Hangouts.
