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Polaris vs LMS (Lightweight Music Server): catalog facts
Polaris	LMS (Lightweight Music Server)
Free Free and open source.	Free Free and open source.
Web, Self-hosted	Linux, Web, Self-hosted
Written in Rust Web client plus an API for other clients	Subsonic API works with many existing client apps Web interface for listening in a browser
Music only, no video support Requires running your own server	Music only, no video Requires running your own server
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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