Chromatic Tuner
Tune any instrument using your mic — see the note and cents in real time.
Microphone blocked 🔒
Allow mic access for this site (click the 🔒 / camera icon in your address bar), then press Start tuner again.
Mic tuning isn't available here
Your browser doesn't support live audio input (or the page isn't on HTTPS). You can still use the reference tones below to tune by ear.
Couldn't start the microphone
Chromatic mode detects any note across the full range — great for piano, vocals, brass and more.
100% private — audio is analysed on your device and never leaves your browser.
Best with a quiet room and the instrument close to the mic. Green needle = in tune (±5¢).
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