TuneHow to use this tuner
- Press Start Tuning and allow microphone access when your browser asks.
- Play one note. Pluck a single string or play one key, close to the microphone, and let it ring.
- Read the display. The big letter is the nearest note. The bar shows how far off you are: left is flat (tune up), right is sharp (tune down).
- Turn until it goes green. Inside your tolerance (±3 cents by default) the display turns green and the string gets a check mark.
What it does
- Every note, any octave
- Detects all 12 notes, so it works for guitar, bass, strings, brass, woodwinds and voice.
- Alternate tunings
- Drop D, Open G, DADGAD, half step down and more. It picks the nearest string for you.
- Note lock
- Starting far below pitch? Tap a string and the tuner guides you all the way up.
- Strobe view
- Bands drift when you're off and stand still when you're exact. Made for intonation work.
- Singing bowls
- Exact frequency of a bowl, its distance from A440 and A432, and a list you can copy into a shop listing.
- Nothing leaves your device
- No account, no recording, no upload. Pitch is measured inside the browser.
Note wheel and needle gauge, sized for your phone. Add it to your home screen.
Questions
How accurate is TuneBalance?
It uses the McLeod Pitch Method with sub-sample interpolation, which resolves well under one cent. In practice your microphone and room noise set the limit, and it is far more precise than any instrument needs.
Do I need to install anything?
No. It runs in Chrome, Safari, Edge and Firefox on desktop and mobile. You only allow the microphone once. You can also add it to your home screen to use it like an app.
Is my audio recorded?
No. Pitch detection runs entirely in your browser with the Web Audio API. Nothing is recorded, stored or uploaded.
Why does the reading jump around?
Play one clean note at a time and let it ring. Background noise, fans, or two strings sounding together confuse any tuner. Raise the noise gate in Settings or move closer to the microphone.
What does “cents” mean?
A cent is 1/100 of a semitone. ±50 cents is halfway to the next note. Most ears can't hear errors under 5 cents.
Can I tune to A = 432 or 442 Hz?
Yes. Open Settings and set the reference A4 anywhere from 400 to 480 Hz.