🎸 GUITAR TUNER
OFFLINE · NO LOGIN · MIC ONLY
Click START to begin tuning
—
Play a string…
♭ Flat
♮ In Tune
♯ Sharp
±0 ¢
▶ START
■ STOP
Pluck a string near your device's microphone.
Green = in tune (±5¢). No data leaves your device — everything runs locally.