Gajim is an instant messaging client for the XMPP protocol which uses the GTK+ toolkit. Developed by Gajim Team
License: Open Source
Jitsi is primarily focused on video conferencing and offers a range of features for online meetings, while Gajim is a powerful instant messaging client built on the XMPP protocol. Jitsi excels in video and audio capabilities, whereas Gajim provides a robust chat experience with strong security and plugin support.