Guitar Tuner

Tune a guitar, bass or ukulele with your microphone. Play one string at a time and bring the needle to the middle. The sound is analysed live and never recorded.

Microphone off — Hz

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play a string

Tuning

Instrument & tuning A4 calibration 440 Hz Reference tone keeps ringing (click again to stop)

Tips

Click a string to hear its reference note and lock the tuner to it. Auto string picks the nearest one for you.
Pluck firmly and let the note ring; mute the other strings.
Tune up to the note: if you're sharp, go a little below and come back up.
Within ±5 cents is in tune; most ears can't hear less than that.

The microphone is only used while tuning is on, with echo cancellation and noise suppression switched off so the real pitch comes through.