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Ultimate Vocal Remover vs StemRoller: catalog facts
Ultimate Vocal Remover	StemRoller
Free Free and open source, with optional donations to the developers.	Free Free, released under your choice of the Unlicense or MIT No Attribution.
Windows, macOS, Linux	Windows, macOS
Separates vocals and instruments locally with no upload Ships many models trained by the project's own developers	One-click stem separation using Demucs Built-in YouTube search to find songs
Processing can be slow without a capable GPU Choosing between many models takes some experimentation	Linux is not officially supported Splitting a song takes several minutes
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: Unlicense OR MIT-0
No account needed	Not stated if an account is needed
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 2, 2026

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