TuneUniversal

TuneUniversal

Online 8 string guitar tuner

Tune 8 string guitar online with microphone detection, reference notes and extended-range support for modern metal and low tunings.

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

Reference tone

Fa#1 / 46.25 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--
TargetFa#1

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8-string guitar Standard F# Strings: Fa# - Si - Mi - La - Re - Sol - Si - 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 8-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 an 8 string guitarTune an 8 string guitar online with better support for low strings and extended-range metal setups.

Related tunings

Drop E tuning for 8-string guitarLearn Drop E tuning for 8-string guitar. Reference notes: E - B - E - A - D - G - B - E.

Specialized pages for this instrument

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

How to tune an 8 string guitarTune an 8 string guitar online with better support for low strings and extended-range metal setups.Drop E tuning for 8-string guitarLearn Drop E tuning for 8-string guitar. Reference notes: E - B - 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 an 8 string guitarTune an 8 string guitar online with better support for low strings and extended-range metal setups.Drop E tuning for 8-string guitarLearn Drop E tuning for 8-string guitar. Reference notes: E - B - E - A - D - G - B - E.

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

Does it work for modern metal tunings?

Yes. Start from the 8 string reference notes here, then fine-tune your preferred extended-range setup.

Why is the low string harder to read?

Very low notes need a clean attack and less room noise. Play one string clearly and let the pitch settle.