TuneUniversal

TuneUniversal

Universal online guitar tuner

Tune acoustic, electric or classical guitar with microphone pitch detection, reference notes and support for standard, Drop D, Eb, D Standard, Open D and Open G.

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

Reference tone

Mi2 / 82.41 Hz

All-string check

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

FlatIn tuneSharp

Detected note

--

Frequency--
Cents--
TargetMi2

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Guitar Standard Strings: 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.

At a glance

The key details to understand this tool at a glance.

Input

Microphone + reference notes

Tunings

Standard, Drop and Open

Best for

Classical, acoustic and electric

How it works

  1. Allow microphone access.
  2. Play one string at a time.
  3. Adjust until the indicator says in tune.

Related guides

Choose the right tuning

Use standard tuning for most songs, Drop D for lower riffs, Eb Standard for lower tension, and Open G or Open D for open chord sounds.

Get a steadier reading

Keep the instrument close to the microphone, play one string at a time and wait a moment for the pitch to settle before adjusting.

Chords and key

Use the chord transposer when a song feels too high or too low. Move every chord by the same number of semitones.

Quick answers

Short answers to the most common first-step questions.

Is this good for fast tuning?

Yes. Turn on the microphone, play one string clearly and wait a moment for the reading to settle before adjusting.

Which tuning should you try next?

After standard tuning, Drop D is the easiest next move for lower riffs, while Eb Standard lowers the whole instrument.

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

Chromatic tuner guideLearn when to use a chromatic tuner to catch any note quickly and accurately.Guitar tuner with microphoneUse your browser microphone to detect guitar pitch without installing an app.How to tune Guitar onlineA quick guide to tuning Guitar with a microphone. 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.How to read chord symbolsLearn what C, Am, G7 and common chord names mean.

Related tunings

Standard tuning for GuitarLearn Standard tuning for Guitar. Reference notes: E - A - D - G - B - E.Eb Standard tuning guideLower every guitar string by a semitone to Eb Ab Db Gb Bb Eb for softer tension and a darker voice.Half Step Down tuning for GuitarLearn Half Step Down tuning for Guitar. Reference notes: D# - G# - C# - F# - A# - D#.D Standard tuning for GuitarLearn D Standard tuning for Guitar. Reference notes: D - G - C - F - A - D.Full Step Down tuning for GuitarLearn Full Step Down tuning for Guitar. Reference notes: D - G - C - F - A - D.Drop D tuning guideTune guitar to D A D G B E for heavier low riffs and faster one-finger power chords.Drop C tuning guideLearn the exact Drop C notes and when players use this tuning for modern rock and metal.Open G tuning for GuitarLearn Open G tuning for Guitar. Reference notes: D - G - D - G - B - D.

Related searches

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

Chromatic tuner guideLearn when to use a chromatic tuner to catch any note quickly and accurately.Guitar tuner with microphoneUse your browser microphone to detect guitar pitch without installing an app.How to tune Guitar onlineA quick guide to tuning Guitar with a microphone. 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 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 on mobile?

Yes, modern mobile browsers with microphone access are supported.

Which tuning is included?

TuneUniversal supports most common guitar tunings, including Standard, Eb Standard, D Standard, Drop D, Drop D#, Drop C#, Drop C, Open D and Open G.

Why does the needle jump?

Room noise or multiple ringing strings can confuse pitch detection. Play one string clearly and let it settle.

Which tuning should beginners use?

For six-string guitar, start with standard E A D G B E before trying Drop D, Eb Standard or open tunings.