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Sonarr vs Medusa: catalog facts
Sonarr	Medusa
Free Free and open source under the GPL. Indexers and Usenet providers you connect it to may…	Free Free to download and run on your own server.
Windows, macOS, Linux, Self-hosted	Self-hosted
Scans an existing library and fills in missing episodes automatically Upgrades files when a better quality release appears, without being asked	Tracks shows and fetches new episodes automatically Self-hosted, with a Dockerfile in the repository
Useless on its own; it needs indexers and a download client Indexers and Usenet access usually cost money	Needs a server and download sources set up by you Focused on TV shows only
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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