Online Chromatic Tuner
Tune any instrument with real-time note detection and pitch feedback.
Precision Instrument Tuner
This tool will use the Web Audio API to listen through your microphone and match the detected pitch to the nearest musical note. A visual gauge shows whether you are sharp, flat, or perfectly in tune.
Features
- ✓ Chromatic note detection across all octaves
- ✓ Visual tuning gauge (sharp/flat/in-tune)
- ✓ Cents deviation display
- ✓ Adjustable reference pitch (A4 = 432-446Hz)
- ✓ Works with guitar, bass, ukulele, violin, and more
- ✓ Note history and stability indicator
About the Online Chromatic Tuner
Our free online chromatic tuner works with any instrument that produces a tonal sound. Simply play a note into your microphone and the tuner will identify it and show how close you are to the correct pitch. Green means in tune, red means you need to adjust.
Unlike guitar-specific tuners, a chromatic tuner detects all 12 notes of the chromatic scale (C, C#, D, D#, E, F, F#, G, G#, A, A#, B) across multiple octaves. This makes it suitable for guitar, bass, ukulele, violin, cello, flute, trumpet, and any other pitched instrument.
The reference pitch is adjustable from 432Hz to 446Hz, with the standard A4 = 440Hz as default. Some orchestras and musicians prefer alternate tuning standards, and this tuner accommodates all of them. No downloads or plugins required -- everything runs in your browser.