Guitar tuner
Listens through your microphone in this tab. Nothing is recorded or uploaded.
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Press Start tuner and allow the microphone when the browser asks.
How to use this tool
Tune a guitar, bass, ukulele or violin with your microphone. Nothing is uploaded.
Open Guitar tuner
Pick your instrument and tuning, then press Start tuner and allow the microphone.
Pluck one string
Let it ring. The tuner shows the nearest string, its frequency and how many cents it is off.
Turn the peg until it is green
Needle left: flat, tighten. Needle right: sharp, loosen. In tune is within ±5 cents. Play reference sounds the string's note.
FAQ
How do I tune my guitar with this tuner?
Press Start tuner and allow the microphone. Pluck one string and let it ring. The tuner shows the nearest string and a needle: left means flat (tighten the string), right means sharp (loosen it). Stop when the needle is in the green zone.
What are the notes of standard guitar tuning?
From the thickest string to the thinnest: E2, A2, D3, G3, B3 and E4 (82.41, 110, 146.83, 196, 246.94 and 329.63 Hz at A4 = 440 Hz).
Can I tune a bass, ukulele or violin?
Yes. Pick it under Instrument: 4- and 5-string bass, ukulele (G C E A), violin, cello, alternate guitar tunings such as drop D, half step down, DADGAD and open G, or Chromatic for any note.
What does A4 = 440 Hz mean?
It is the pitch every other note is worked out from. Almost all music uses 440 Hz. Change it to tune to a piano or recording that sits a little higher or lower, such as 442 Hz or 432 Hz.
Is the sound uploaded?
No. The microphone is analysed in this tab only and nothing is recorded or sent. Close the tab or press Stop to turn the microphone off.