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Movim vs Kaidan: catalog facts
Movim	Kaidan
Free Free and open source under the AGPL-3.0, funded by donations.	Free Free to download and use; developed within the KDE community.
Web, Self-hosted	Linux
Uses standard XMPP and talks to other XMPP clients Chat, feeds and video calls in one web interface	Works with any XMPP server instead of a single provider End-to-end encrypted messaging
Self-hosting needs PostgreSQL and some setup Largely maintained by one developer	Developers note it still lacks some basic features Has known stability issues
Web application, Self-hosted	Downloadable app
Open source	Open source
License: AGPL-3.0	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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