Synapse (Matrix Homeserver)
Reference Matrix homeserver powering decentralized, federated team chat
Overview
Synapse is the most widely deployed Matrix homeserver, providing the backend for federated, end-to-end encrypted messaging used by clients like Element. It enables organizations to run their own communication infrastructure with full data ownership and interoperability across the Matrix network. Maintained by Element under a dual AGPL/commercial license.
Where it falls short of Slack
- It is a backend only; you must pair it with a client (Element) for a usable product
- Federation and database (PostgreSQL) tuning is required for scale and can be resource-intensive
- Setup involves reverse proxy, TLS, well-known config, and federation ports
- AGPL license and commercial relicensing have caused community friction
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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