Online Guitar Tuner. beta · Pro

Pluck a string and we'll tell you how far it is from in-tune. Works in the browser, no app, no install. Available to Pro subscribers.

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Flat ♭ In tune ♯ Sharp

Press Start and pluck a string.

Tip: get quiet, pluck firmly, let the note ring. Works best on a laptop with the guitar held near the mic. Tuner runs entirely in your browser. The audio never leaves your device.

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The tuner is a Pro feature while in beta.

Pro members get full access to the beta tuner, tap-to-hear chord audio, unlimited music-library downloads, and every progression end-to-end.

Start 7-day free trial

$9.97/mo after trial · Cancel any time · Already Pro? Sign in