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# Instrument tuner

A chromatic tuner that listens through the microphone, names the note, octave, and cents offset, and plays reference tones that duck while listening.

Press Start tuning and allow the microphone. The dial shows how far the heard note sits from the nearest chromatic pitch.

This is a chromatic tuner: it names whichever of the twelve notes sits nearest and reports the distance in cents, equal tempered, against your A4 calibration. It handles one note at a time; chords and double stops break single-pitch detection, and noisy rooms can drop the reading out. The microphone is analyzed a few times a second, never recorded, and no audio leaves the device. Reference tones are synthesized here and pause while the tuner listens, so it never tunes against its own sound. The tool does not transcribe melodies, tune to custom temperaments, or replace a strobe service on a grand piano.
OptionsStart tuning

## More audio tools

- [Bass guitar tuner](/audios/bass-guitar-tuner)
- [Chord progression generator](/audios/chord-progression-generator)
[All audio tools](/audios)

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