Tuner
Real-time pitch detection via microphone
A simple online tuner: mic input with live note, frequency, and cents offset for guitar, bass, violin, and more.
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♭♯
0.00Hz
A4 reference
440 Hz
Mic sensitivity
Tips:
- Tap Start tuning and allow microphone access
- Play a single note near the mic; chords and noise hurt detection
- Green readout and centered needle mean you’re in tune
- Adjust A4 for ensemble habits; change mic sensitivity for noisy or quiet rooms
- A4 and sensitivity settings are saved for next time