Openfire
Matrix & XMPPReal-time collaboration XMPP server written in Java
Replaces Slack, Microsoft Teams
Best Plugins Matrix & XMPP for self-hosting
The 9 best Plugins matrix & xmpp you can self-host, ranked by community traction.
ZNC
Matrix & XMPPAdvanced and flexible IRC bouncer
Replaces IRCCloud
Maubot
Matrix & XMPPPlugin-based bot framework for Matrix chat rooms
Replaces Slack bots
JSXC
Matrix & XMPPJavaScript XMPP client for the browser
Replaces Slack
Gajim
Matrix & XMPPFull-featured XMPP client with plugins
Replaces Skype, Slack
Tigase XMPP Server
Matrix & XMPPHighly scalable XMPP/Jabber messaging server
Replaces Slack, WhatsApp
Poezio
Matrix & XMPPConsole XMPP client modeled after IRC clients
Replaces Slack
Slidge
Matrix & XMPPXMPP-to-anything puppeteering bridge framework
Replaces Beeper, Matrix bridges
PeerTube Plugin LiveChat
Matrix & XMPPPlugin adding live chat to PeerTube streams
Replaces Twitch chat
No apps match these filters.
Every option here is open-source and self-hostable, tagged Plugins within the matrix & xmpp category. Compare them on the individual app pages for setup difficulty and resource requirements.