Listen Here!

Seamlessly compare and switch between different audio recordings of the same piece of music.

Open from this device Select an alignment file and audio recordings directly from your computer. Create a new alignment Build an alignment file from your audio recordings in the browser.

🔒 Your audio is never uploaded anywhere — it is opened directly in your browser and never sent onward. Safe to use with copyrighted recordings.

No installation required.

Need help? See full documentation in the README.