Gajim - Full featured and easy to use Jabber client
Briar - Secure messaging, anywhere
CoyIM - CoyIM is a safe and secure chat client.
Bridgefy - Integrating Bridgefy allows mobile devices to communicate in a secure and efficient way across...
Empathy - Apps/Empathy - GNOME Wiki!
WorldChat - Meet new people around the World on WorldChat.tv, the Original World Chat since 2011.