ejabberd
last commit 3 days ago, Other License
Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)
6k
327 commits past year
Awwesome Selfhosted
Original data by the awesome-selfhosted
community, licensed under
CC-BY-SA 3.0
Star on Github 
7 Projects
Openfire
last commit 2 days ago, Apache License 2.0
An XMPP server licensed under the Open Source Apache License.
3k
445 commits past year
MongooseIM
last commit 2 days ago, Other License
MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.
2k
1k commits past year
Tigase
last commit 8 hours ago, GNU AGPLv3
(M) Highly optimized, extremely modular and very flexible XMPP/Jabber server
299
65 commits past year
Snikket
last commit 9 days ago, Apache License 2.0
Image builder for Snikket server
218
70 commits past year
Metronome IM
last commit 13 days ago, Other License
Metronome IM, lightweight xmpp server with advanced microblogging features.
167
10 commits past year
Prosody IM
Feature-rich and easy to configure XMPP server.