Listen Here!

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

Load local files Select an alignment file and audio recordings directly from your computer. Align in browser Create a new alignment file from your audio recordings.

🔒 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.