Choose an instrument and tuning, then tune one string at a time.

1. Set the reference pitch, instrument and tuning.
2. Choose a string. Change its note or octave to make a custom tuning.
3. To tune with the microphone, choose Start microphone and follow the pitch meter.
4. To tune by ear, choose By ear, then Play to hear the reference tone.

Microphone audio is processed on your device. It is never recorded or sent to a server.

Your string, tuning and volume settings are saved in this browser.

The microphone detection range is 25–2000 Hz. Accuracy depends on your microphone and background noise.

Audio stops when you leave this page or put the app in the background.