Online Guitar Tuner
Tune a guitar in standard tuning directly in your browser. Allow microphone access, play a string, and the tuner shows whether the pitch is low, high, or in tune.
Open Online Tuner Open Chord ChartStandard guitar tuning
The tuner is designed for regular six-string guitar tuning: E, A, D, G, B, E. It works best in a quiet room with the microphone close to the instrument.
- No install needed.
- Works on modern mobile and desktop browsers.
- Shows low, high, and in-tune feedback.
- Adjustable A4 reference pitch from 420 to 460 Hz.
- Pairs naturally with the chord chart and chord quiz.