Musicianstool

Chromatic Tuner

High-precision real-time tuning. Grant microphone permission and press Start.

In Tune
Close
Adjust
Confidence
FLATSHARP
—
Idle
0¢
Deviation: 0¢
Confidence: 0%
Vol: 0%

Controls

Session: 0s
Frames: 0
Stability: 0.0%
Avg Dev: 0.0¢

Shortcuts: Space (start/stop) + / - (A4 adjust)

Session Stats

Time: 0s
Frames: 0
Stability: 0.0%
Avg Dev: 0.0¢

History (Coming Soon)

A visual timeline of detected notes and deviation will appear here.

How to Use

  1. 1. Press Start & grant microphone access (HTTPS required).
  2. 2. Play a single, steady note close to your device mic.
  3. 3. Adjust until the needle centers & cents show near 0.
  4. 4. Green zone (<5¢) is perfectly in tune.
  5. 5. Adjust A4 (430–450 Hz) for historical / alternate tunings.
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