Professional Chromatic Tuner

The most accurate and complete online tuner. Gauge and strobe modes, tone generator and presets for dolçaina, guitar and more. Free.

To work, the tuner needs access to your device microphone. Press "Start" and grant permission when the browser asks for it.

-- Hz

Cents: 0

Waiting...

A4 Calibration 440.0 Hz

Noise gate 0.005

Needle damping 0.3

Select a note, waveform and volume to hear a continuous reference tone.

440.0 Hz

Space Start/Stop D Dark mode M Gauge/Strobe