Online guitar tuner
Choose a tuning and string, then allow microphone access to see your pitch and tuning offset in real time.
Detected note
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Play the selected string
Play the selected string
Audio is processed on this device and is not uploaded or saved.
How to tune your guitar
Play one string at a time. Select its target note and turn the tuning peg until the pointer centers. A negative cents value is flat; a positive value is sharp.
Standard
E2 · A2 · D3 · G3 · B3 · E4
E2: 82.41 Hz
Drop D
D2 · A2 · D3 · G3 · B3 · E4
D2: 73.42 Hz
Open G
D2 · G2 · D3 · G3 · B3 · D4
D2: 73.42 Hz
Half Step Down
E♭2 · A♭2 · D♭3 · G♭3 · B♭3 · E♭4
E♭2: 77.78 Hz