stemroller: a free audio demixing app that separates vocals and instrumentals using the Demucs algorithm

What it solves

StemRoller provides a simple, free application that allows users to separate a song's vocals and instrumental tracks (stems) without needing technical expertise. It removes the complexity of using command-line tools by integrating song search and audio separation into a single interface.

How it works

The app integrates YouTube search results to find songs and uses Facebook's Demucs algorithm to perform the audio demixing process. Users search for a song, select it from the results, and the app handles the downloading and splitting of the audio into separate stems.

Who it’s for

Musicians, DJs, and audio engineers who need isolated vocal or instrumental tracks from existing songs.

Highlights

• One-click stem separation from any song.
• Integrated YouTube search for easy song discovery.
• Powered by the state-of-the-art Demucs algorithm.
• Free to use.