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Audio Separator vs Ultimate Vocal Remover: catalog facts
Audio Separator	Ultimate Vocal Remover
Free Free and open source.	Free Free and open source, with optional donations to the developers.
Command line	Windows, macOS, Linux
Uses many pre-trained UVR separation models Works from the command line or as a Python library	Separates vocals and instruments locally with no upload Ships many models trained by the project's own developers
No graphical interface Needs a Python environment and model downloads	Processing can be slow without a capable GPU Choosing between many models takes some experimentation
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 23, 2026

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