tuner.love Open tuner
12 pitch classes · Free mode

Free online chromatic tuner for any instrument

Play any sustained note and the Chromatic tuner identifies the closest semitone, shows its octave and measures how far the pitch sits from center.

Start tuning now Private by design · no account · audio stays on this device
Live target±5 cents
CC♯DE♭EFF♯GA♭AB♭B
FlatIn tuneSharp
01All 12 pitch classes
02Detected note and octave readout
03A4 calibration from 415 to 450 Hz
Know the target

One tuner for every chromatic note

Chromatic mode is independent from instrument string counts and presets. It follows the nearest note across all twelve pitch classes while the shared cents meter shows the tuning offset.

The detected note remains in Free mode, so you can move between notes naturally. Adjust the reference pitch from A4 = 415 to 450 Hz when an ensemble or historical setup uses something other than 440 Hz.

Four clear steps

How to tune accurately

  1. 1Open Chromatic and allow microphone access.
  2. 2Play one clear note on your instrument and let it sustain.
  3. 3Read the detected note and octave, then adjust until the cents marker reaches center.
  4. 4Repeat for any other pitch—there is no fixed string order in Chromatic mode.
Pitch system

All twelve notes, repeated across octaves

Chromatic mode recognizes C, C♯/D♭, D, D♯/E♭, E, F, F♯/G♭, G, G♯/A♭, A, A♯/B♭ and B. The octave number identifies the register, while cents show the fine offset from the selected A4 reference.

Practical answers

Frequently asked questions

What instruments can use the Chromatic tuner?

Any instrument that can produce a clear sustained pitch near your device microphone can use it, including strings, winds, brass and voice.

Does Chromatic mode choose a guitar string?

No. It reports the nearest chromatic note directly and stays independent from guitar, bass, ukulele and mandolin string layouts.

Does tuner.love upload my microphone audio?

No. Pitch analysis runs locally in your browser. Microphone audio is not uploaded to a backend and is never replayed through your speakers.

Keep exploring
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12 pitch classes · Free mode

Ready to tune?

Open the live tuner. Your browser handles the microphone signal locally.

Open free online chromatic tuner for any instrument