Tuner

Guitar tuner

Play a string and see its note, how far flat or sharp it is, and which way to turn the peg. Or hear each string and tune by ear. Standard tuning is E A D G B E, from string 6 to string 1.

GuitarBassUkuleleMandolinBanjo7-string guitar8-string guitar5-string bass6-string bass7-string bass8-string bass

Press Start tuning, then play one string

Input
A =440 Hz

The microphone is asked for only when you press Start, and heard only while the tuner is on. Nothing is recorded or sent.

How to tune a guitar

  1. Press Start tuning and allow the microphone when your browser asks. A quiet room helps.
  2. Play one string, open, and let it ring. The tuner names the note it hears and the string it is nearest.
  3. If the needle is left of the middle, the string is low (flat): tighten it. If it is right of the middle, it is high (sharp): loosen it. Turn a little at a time, and play the string again.
  4. When the needle sits in the middle and the note turns green, that string is in tune. Go on to the next.
  5. Tune each string up to its note rather than down to it: the string holds its tuning better. Check them all once more at the end, because tuning one pulls a little on the others.

No microphone? Click a string above to hear its note, tick Keep playing the string I click, and turn the peg until your string and the note sound the same, with no slow wobble between them.

A tuner for every guitar tuning

Half step down (E flat)E♭ A♭ C♯ F♯ B♭ E♭Whole step down (D standard)D G C F A DC standardC F B♭ E♭ G CDrop DD A D G B EDrop C sharpC♯ A♭ C♯ F♯ B♭ E♭Drop CC G C F A DDrop BB F♯ B E A♭ C♯Double drop DD A D G B DOpen DD A D F♯ A DOpen EE B E A♭ B EOpen GD G D G B DOpen AE A C♯ E A EOpen CC G C G C EDADGADD A D G A DB standardB E A D F♯ BDrop AA E A D F♯ BG Wahine (slack key)D G D F♯ B DOpen BB F♯ B F♯ B E♭Open FC F C F A COpen D minorD A D F A DOpen E minorE B E G B EOpen G minorD G D G B♭ DOpen A minorE A E A C EOpen C minorC G C G C E♭Open F minor (Albert Collins)F C F A♭ C FDsus2 (DADEAD)D A D E A DCsus2 (CGCGCD)C G C G C DGsus4 (DGDGCD)D G D G C DAsus4 (EADEAE)E A D E A EEsus2 (EBEF#BE)E B E F♯ B EOrkney (CGDGCD)C G D G C DC6 (CACGCE)C A C G C EFACGCEF A C G C ECGDGBEC G D G B EAll fourthsE A D G C FMajor thirdsE A♭ C E A♭ CAll fifthsC G D A E BNew standard tuningC G D A E GIris (Goo Goo Dolls)B D D D D DNashville (high strung)E A D G B E