TuneUniversal

TuneUniversal

Online 12 string guitar tuner

Tune 12 string guitar online with microphone help, reference notes and extra support for octave pairs and chorus-rich strings.

Digital tuner
Lock selected stringRecommended: choose a string and the tuner stays on that target.

Reference tone

Mi3 / 164.81 Hz

All-string check

Strum all open strings once to see which strings are out of tune.

FlatIn tuneSharp

Detected note

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Frequency--
Cents--
TargetMi3

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12-string guitar Standard octave pairs Strings: Mi - Mi - La - La - Re - Re - Sol - Sol - Si - Si - Mi - Mi

+/-5 cents = In tune

Move the instrument closer to the microphone.

Play one open string and let it ring.

Use Manual mode in noisy rooms.

How it works

  1. Select 12-string guitar in the tuner.
  2. Allow microphone access.
  3. Play one string or note at a time.
  4. Tune until the indicator is centered.

Explore the next step

Use these links to move between the tool, practical guides and the matching tuning hub.

All toolsAll guidesTuning hub

Related guides

How to tune a 12 string guitarTune a 12 string guitar online with clear reference notes for standard strings and octave pairs.

Specialized pages for this instrument

These pages are closely related to this instrument type or its most common tuning setups.

How to tune a 12 string guitarTune a 12 string guitar online with clear reference notes for standard strings and octave pairs.Standard tuning for GuitarLearn Standard tuning for Guitar. Reference notes: E - A - D - G - B - E.Common guitar tuningsCompare Standard, Drop D, Eb Standard, Open D and Open G in one practical guitar tuning guide.

Related searches

Internal pages that naturally match the next step after this tool.

How to tune a 12 string guitarTune a 12 string guitar online with clear reference notes for standard strings and octave pairs.

Related questions

Short follow-up questions to keep practice moving.

What is the most useful next step?

After this tool, the most useful next step is usually a related practical guide or a tuning page.

All guides

Which other tool should you open alongside this one?

If you are practicing a song, pairing this with the metronome or Tap BPM usually makes practice more effective.

Online metronome

FAQ

Should I tune single strings or pairs?

Start by checking one course at a time, then strum both strings together to confirm the octave pair sounds balanced.

Can I use this for standard 12 string tuning?

Yes. The page is built for standard 12 string reference notes and works well for quick daily tuning.