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Subsonic vs Koel: catalog facts
Subsonic	Koel
Freemium The official site does not specify pricing terms.	Freemium The open-source server is free; Koel Plus is a paid edition with extra features.
Windows, macOS, Linux, Web, Self-hosted	Android, iOS, Web, Self-hosted
Streams a personal music and movie library Supports DLNA and an open REST API	Multi-user support with smart playlists and favourites Metadata editing and uploads from the web interface
Requires installing the server app where you keep your media	Some features are reserved for the paid Koel Plus edition Requires running and maintaining your own server
Downloadable app, Web application, Self-hosted	Downloadable app, Self-hosted
Closed 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 8, 2026	Official website Full listing and sources Checked September 23, 2026

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