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MVSEP vs StemRoller: catalog facts
MVSEP	StemRoller
Freemium Free to use, with some ensemble models limited to premium users.	Free Free, released under your choice of the Unlicense or MIT No Attribution.
Android, iOS, Web	Windows, macOS
Wide choice of separation models with usage and ratings shown Many stem types beyond vocals and instrumental	One-click stem separation using Demucs Built-in YouTube search to find songs
Best ensemble models require a premium account Audio is processed on the service's servers	Linux is not officially supported Splitting a song takes several minutes
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: Unlicense OR MIT-0
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

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