How to use the online tuner
Press Start and allow microphone access. Play a single note and let it ring. The big letter is the nearest note, and the needle shows how far you are from it in cents (hundredths of a semitone). Tighten the string or raise your pitch if the needle sits left, loosen or lower it if it sits right. Within ±5 cents the needle turns green: that's in tune for almost any purpose.
Tips for an accurate reading
- Tune in a quiet room, close to the microphone.
- Play one string at a time and let it ring after the attack.
- Tune up to the note rather than down: it helps the string hold its pitch.
Standard tunings
Guitar: E2 A2 D3 G3 B3 E4. Bass: E1 A1 D2 G2. Ukulele: G4 C4 E4 A4. Violin: G3 D4 A4 E5. Cello: C2 G2 D3 A3.
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Tuners by instrument
Guitar tuner · Bass guitar tuner · Ukulele tuner · Violin tuner · Viola tuner · Cello tuner · Double bass tuner · Mandolin tuner · Banjo tuner · Drop D guitar tuner · DADGAD guitar tuner · Open G guitar tuner · Half step down guitar tuner
Questions
Does the tuner record or upload my audio?
No. The sound is analysed live in your browser and never leaves your device.
Why does the note jump around?
Background noise, several strings ringing at once, or a very quiet note can confuse pitch detection. Play one note, close to the microphone.
What does A4 = 440 Hz mean?
It's the standard reference pitch that most music is tuned to. Orchestras sometimes use 442 Hz, and Baroque ensembles often use 415 Hz.
Can I tune my voice with it?
Yes. Sing a steady note and watch the needle. For a full picture of your range, try the vocal range test.
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