ejabberd source
XMPP instant messaging server.
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Self-hosted Communication - XMPP - Servers software (2026)
[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP) servers.
6 open-source apps · all free & self-hostable
MongooseIM source
Mobile messaging platform with a focus on performance and scalability.
Openfire source
Real time collaboration (RTC) server.
Prosody IM source
Feature-rich and easy to configure XMPP server.
Snikket source
All-in-one Dockerized easy XMPP solution, including web admin and clients.
Tigase source
XMPP server implementation in Java.