Guitar Tuner
Tune any string by ear using your microphone. Works for any note, not just standard guitar tuning.
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Listening... play a note.
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No microphone? Tune by ear
Play each string's standard pitch and tune your guitar by ear.
About this tuner
This tuner listens through your microphone and detects the pitch you're playing in real time -- it works for any note, so you can use it for standard tuning (E A D G B E) or any alternate tuning. Nothing you play is recorded or sent anywhere; all detection happens locally in your browser.