Free tool
A tuner. That listens through your microphone. Free, nothing recorded.
—
Not listening
How it works
01
Allow the microphone
Your browser asks once. The sound is analysed live in the page and is never recorded or sent anywhere.
02
Play one string
Pluck a single string or sing a steady note. The tuner names the nearest note and how many cents sharp or flat you are.
03
Tune to the centre
Turn the peg until the needle sits in the middle and goes green: within 5 cents is in tune.
Questions
- What are the standard guitar tuning notes?
- From the thickest string: E2, A2, D3, G3, B3, E4. Ukulele (standard, re-entrant): G4, C4, E4, A4. Violin: G3, D4, A4, E5.
- What is a cent?
- A hundredth of a semitone. Most people can't hear a difference under about 5 cents, which is why that is the in-tune window here.
- Should I use 440 or 432 Hz?
- 440 Hz for A4 is the modern standard and what other players and recordings expect. Some orchestras tune to 442; 432 is a preference, not a standard. Match whoever you're playing with.
- Can I tune a bass guitar?
- Not reliably: this tuner reads from about 60 Hz upwards, and a bass's low E is 41 Hz. Its A, D and G strings work, and the low E can be tuned from its 12th-fret harmonic (82 Hz).
- Is it free and private?
- Free, with no sign-up. The microphone audio stays in your browser tab.
In tune.
Now record it.
Record straight into the SoundGen studio in your browser, with a click, effects and AI that writes parts around your take.