Instrument Tuner
Tune guitar, bass, ukulele, violin, voice or any instrument in real time with a chromatic note readout and cents meter.
What this tool tells you
What it does
Use this to tune an instrument or check vocal pitch live from a microphone or audio interface.
How to use it
Start the tuner, pick your reference pitch, and play one sustained note at a time. The needle centres and turns green within ±5 cents.
How to interpret it
Pitch is detected with the YIN method. Chords, heavy distortion and noisy rooms make detection unstable; play single notes close to the microphone.
Frequently Asked Questions
- How accurate is the tuner?
- On clean single notes it resolves well under one cent. Accuracy drops with chords, distortion or room noise.
- Can I tune to 432 Hz?
- Yes. Choose the reference A4 from 432 to 444 Hz before or while tuning.
- Is my audio recorded?
- No. The tuner only analyses the live signal in your browser; nothing is saved or uploaded.
Selected files are processed locally in the browser and are not uploaded to TrueRes for processing. Open this page in a modern browser to use the interactive tool.