What it's for
- Rehearsing a song in your singer's key.
- Slowing down a solo to learn it by ear.
- Matching a backing track to your instrument.
Formats
MP3, WAV, M4A, OGG and FLAC. The result downloads as WAV.
Frequently asked questions
Is the file uploaded to a server?
No, it's processed in your browser.
How far can I change it?
Up to an octave up or down, and from 50 % to 150 % speed.