Is Instrument Tuner free to use?

Yes, Instrument Tuner is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using Instrument Tuner?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

Audio Tools

Instrument Tuner

Real-time chromatic instrument tuner using your microphone — guitar, bass, ukulele, violin, and more, with cents-accurate pitch detection

Trusted by 10k+ developers

Instrument Tuner

Play a single note near your mic — this tool will detect its pitch

Instrument preset

A4 reference: 440 Hz

Press "Start listening" and play a note

Tips for accurate tuning

Use a quiet room — background noise throws off detection
Play a single clean note, not chords
Place your instrument close to the microphone
Uses the YIN algorithm for monophonic pitch detection
All processing happens locally in your browser — nothing is uploaded

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