Online 12 String Guitar Tuner

Use this free online 12 string guitar tuner to tune up your guitar. This is for the standard eEaAdDgGBBEE 12 String Guitar tuning. A 12 string guitar is split up into 6 pairs of 2 strings. The thicker string of the pair is tuned to the same note and octave as a regular 6 string guitar. The thinner string, on the pair of strings 3-6, is tuned one octave higher than its pair. On the first and second pairs, the notes are the same octave and each string in the pair should sound exactly the same to its other string in the pair. This is eEaAdDgGBBEE tuning. The lowercase letters means that it is one octave higher then its counterpart.

ALERT Sorry, your web browser does not support Adobe Flash or does not have it installed. Most Apple products do not support Flash. Please use our HTML5 Guitar Tuner that will work with almost all modern browsers.

Alternate Tunings

If you need a different tuning then, check out our adjustable guitar tuner, and select the tuning you want and then tune the thicker strings it like you would a 6 string guitar and ignore the smaller string of the pair. Once you've done that, go back and tune the thinner strings 1 octave higher to whatever the notes is on the thicker string. Do this with all the strings except on the 1st and 2nd pair. Like we mentioned earlier, the first and second pair of strings are the same octave so just tune it to the exact note of its other string in the pair.

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Comments (40)
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The high e snaps easily, so tune up slowly!!

by jerry on

Grazie !!! Funziona benissimo e si accorda la 12 corde in un attimo.
Bravi !!!

by Alberto on

well.....I had been tuning this thing for years... it got so out of tune I COULDNT HEAR IT!!! My tuner didn't work at all!! So very glad this was available!! You saved my gig this weekend

by lisa douglas on

Playing skills have benefited from using this tuner - A lot more time gets spent playing and practicing instead 0f tuning. Cannot get better playing less.

by Fretson on

12-String Lower tuning

Tony, I tune my 12-String down just to keep less stress on the neck and bridge. Whether or not it is necessary probably depends on the particular guitar design. What I do is tune the Ee string to "Dd", so the tuning would be DGCFAD. Then if I am playing with someone tuned "standard",I simply use a capo on the second fret and then we are the same. Have fun!

by Rad on

12-String tuning/octave

I have been playing a 12-String for 40 years, but I am not an "expert" with guitars. So, let me offer my simple explanation on tuning one. The thick string AND it's thin mate (pair) are both tuned to the same note. Example E and e String. The simple fact that they are different thickness will make the little "e" string an octave higher. You don't have to do anything different, just tune both to the same note. I hope this helps. Enjoy your guitar!

by Rad on


like its being said what is octave higher on a tuner

by Tony Mc on

Thanks! Really helpful and fast! Guitar Tuna only tunes six string guitars, I was frustrated but you really came thru!
All the best!

by Rox on

This is perfect. What a great tool this site is. Kudos to you!

by Ian A. Fraser on


wow gay

by Josh Robinson on

Thanks for the EZ Tuner...very helpful!!...Makes tuning a 12 String a breeze

by michael mcguire on

Wonderful thanks. I have shared your site on facebook. Helpful indeed.

by Sam on


by Mac on


Great tuner, not the easiest instruments to tune properly but tuner is brilliant. Thanks

by Chris jones on

I tune my 12 string to standard "C" and am worried this is too tight and may bend the neck. Is there a problem tuning it down
and what note should I use on my Tuner ?

by Tony on

Looking for a free plectrum (4 string) tuner. Thanks

by Gary crawley on

brilliant, makes life easy

by jt on


Thanks a ton man. It was very helpful. :-)

by Fae on

awesome great site

by gilbert on

just got my 12 string thanks tuner awesome keep jamin rock on

by rob on
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