Custom tuning
Edit the current string targets, then save the setup locally.
MUSIC · GUITAR · PRACTICE
Online Guitar Tuner
Allow the mic, pluck one string and tune to the center. Fast enough for every practice session.
🎤 local mic± cents28 tunings
—play a string
—cents— Hz
Waiting for sound
−50flat0sharp+50
Auto detects the nearest target string. Tap a string above to lock it; tap Auto to unlock.
Tunings & calibrationcustom strings · A4 reference · detection settings
Calibration
Reference tone
No microphone? Select a string and use the reference tone to tune by ear.
Saved tuningslocal presets, no account
How to get a stable readingmic placement · sharp vs flat · privacy
Pluck one string
Play one open string at a time and let it ring. Keep the device close enough to hear a clean note and mute neighboring strings if the needle jumps.
Tune to the center
Flat means raise the pitch. Sharp means lower it. Aim for the green center and then recheck all strings once more after changing tension.
Private by design
Pitch analysis runs in this browser. This page does not upload or record your microphone audio.