StemRoller

Windows · Mac

Freedom report

Two barsScore 5.4

StemRoller is ranked #10 of 26 in AI stem splitters on Freedom251. It runs on macOS, Windows. There is a free plan.

StemRoller plans and pricing

Free Free Free to use; makes vocals, drums, bass, other instrumental stems and an instrumental track stemroller.com · 5 Oct 2026

Purpose: StemRoller makes karaoke, vocal, and stem tracks from songs.
Stem separation: It splits songs into vocals, drums, bass, and everything else, and creates an instrumental mix from the non-vocal stems.
Song search: Users can search for a song by title, and StemRoller finds it online.
Algorithm: StemRoller uses Demucs, a machine learning project, to separate stems.
YouTube: The project README says StemRoller integrates search results from YouTube.
Price: The maker describes StemRoller as totally free.
License: The maker describes StemRoller as open source; its README offers the Unlicense or MIT No Attribution license.
Support: The maker invites users with questions or issues to get help on Discord.
Processing time: The project README says splitting takes several minutes.
Platforms: The maker's releases page provides downloads for Windows and macOS.
Instrumental: It creates an instrumental by mixing together all non-vocal stems.
Machine learning: The product is based on Facebook's Demucs machine learning research project.
Open source: StemRoller describes itself as open source.
Downloads: The homepage links to a macOS ZIP and a Windows CUDA executable, version 3.1.1.
Price from: Free

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