Pidgin
Open Source
Pidgin is a free and open-source chat client which supports AIM, Google Talk, ICQ, XMPP protocols.
WhatsApp Messenger
Free
WhatsApp Messenger is an instant messaging platform owned by Facebook.
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…
Spark
Open Source
Apache Spark is an open-source cluster-computing framework.
Zulip
Open Source
Zulip is a chat and collaborative software.
Hangouts
Free
Hangouts is an instant messaging software developed by Google.
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…
Gajim
Open Source
Gajim is an instant messaging client for the XMPP protocol which uses the GTK+ toolkit.
Coccinella
Open Source
Coccinella is a free and open-source cross-platform client for the XMPP/Jabber-instant messaging-protocol.
Phoner
Free
Phoner and PhonerLite are softphone applications for Windows operating systems available as freeware.
Compare Tkabber with alternatives
Compare WhatsApp Messenger and Tkabber and decide which is most suitable for you.