List of Top Free Open Source & Self Hosted Application for Communication - XMPP - Servers

Extensible Messaging and Presence Protocol servers.

ejabberd – XMPP instant messaging server. GPL-2.0 Erlang
jackal – XMPP server with focus on stability, simple configuration and low resource consumption. Apache-2.0 Go
Metronome IM – Fork of Prosody IM. MIT Lua
MongooseIM – Mobile messaging platform with a focus on performance and scalability. GPL-2.0 Erlang
Openfire – Real time collaboration (RTC) server. Apache-2.0 Java
Prosody IM – Feature-rich and easy to configure XMPP server. MIT Lua
Snikket – All-in-one Dockerized easy XMPP solution, including web admin and clients. Apache-2.0 Lua/Python
Tigase – XMPP server implementation in Java. GPL-3.0 Java