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Tigase XMPP Server vs MongooseIM: catalog facts
Tigase XMPP Server	MongooseIM
Freemium Open-source server, with paid plans and support offered by Tigase.	Free Free and open source.
Self-hosted	Self-hosted
Built on the open XMPP standard Designed for large numbers of users	Clusters across multiple machines Fault tolerant Erlang design
Requires server administration knowledge to deploy and run Website is aimed at businesses buying support	Aimed at large installations, which adds complexity for small setups Requires familiarity with server and cluster administration
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.