Free online tuner for guitar, bass, ukulele and voice
Free · no sign-up · runs in your browser, nothing is uploaded
How to use it
- Press Start tuner and allow the microphone.
- Pick your instrument, then play one string at a time.
- Turn the peg until the needle is in the middle and it says "In tune".
About this tool
Play a string or sing a note and the tuner shows which note it hears and how many cents sharp or flat you are. Pick Guitar, Bass, Ukulele or Drop D to see each string, or Chromatic for voice and any instrument.
Questions
What is standard guitar tuning?
From the thickest string: E A D G B E (E2, A2, D3, G3, B3, E4).
What are cents?
A cent is one hundredth of a semitone. Within about 5 cents sounds in tune to most people.
Can I tune to A = 432 Hz?
Yes. Change the A4 number to any value from 415 to 466 Hz.
Is my microphone recorded?
No. Everything runs on your device. Nothing is uploaded.
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