Chromatic pitch detection via your mic. Reads guitar, bass, voice, violin, brass — anything monophonic. Cents-accurate readout.
Allow mic access. Mic stream stays on your device — nothing is uploaded.
Your browser will ask. We never record or upload — analysis is local.
The detected note and cents-off-pitch update in real time.
Centred green needle = in tune. ± deviation in cents.
Auto-correlation pitch tracker, ±1 cent accuracy.
Mic stream never leaves your device.
Voice, guitar, bass, violin, sax — anything monophonic.
No — the mic stream is processed locally in your browser. Nothing is sent to a server.
Pitch detection works best on monophonic sources (one note at a time). Chords give an unstable readout.
A cent is 1/100th of a semitone. ±5 cents is generally inaudible; ±1 cent is studio-tight tuning.
Yes on iOS Safari and Android Chrome — both support Web Audio mic input.