Free tool
Tuner
Guitar, bass, or anything chromatic. It listens through your microphone and tells you how many cents flat or sharp you are — no account, no upload, no ads.
Standard tuning, low E to high e
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Press listen, then play one string on its own.
- E 82.4 Hz
- A 110.0 Hz
- D 146.8 Hz
- G 196.0 Hz
- B 246.9 Hz
- e 329.6 Hz
Nothing is recorded and nothing is sent anywhere. The microphone is read in your browser and stops the moment you press stop.
Made as part of 66music — 1,254 practice exercises for guitar, piano, bass and drums.