tuneguitar.

LESS TUNING. MORE PLAYING.

Strum once. See what needs a closer listen.

An experimental starting point for six strings.

Tune open strings first. Fit your capo, then switch on “Check with capo on”.

StandardE A D G B E
REFERENCE TONEA4 = 440 Hz
E2
E · 6th string82.41 Hz

Choose a string below to hear its note.

PLAY A STRINGThickest Thinnest
6 strings · 3 seconds each
Sound & advanced settings

A gentle ping follows a steady note within 5 cents. Its volume follows the sound slider. Microphone audio stays on your device.

Check your intonation.

Compare one open string with the same string pressed at fret 12. Remove your capo and mute the other strings.

  1. 1. Tune and measure the open string
  2. 2. Press at fret 12 and measure again

Press just behind fret 12 with normal pressure. Do not play a harmonic. Repeat the comparison to confirm the result.

Check your six strings.

Press start, then sweep gently across all six open strings, from thickest to thinnest. Let them ring together.

Experimental: overlapping notes can be unclear. Select any result to measure that string alone in this window.

Check a known reference.

Play a steady reference from another device or instrument whose frequency you know. Enter that frequency below.

This compares your input with the reference you supply. It is not a certified calibration. Only numbers are saved, never audio.
Acoustic, electric & classicalFree. No download. Just play.

By ear: click a note, match your string, then move to the next. Keyboard: 1–6 to play · Esc to stop

A BETTER GUITAR SETUP

What a strum check can tell you

Press Start strum check, then sweep gently across the six strings. The check waits for sound and combines several readings while the strings ring. It suggests which notes may be sharp or flat; it cannot confirm that every string is in tune.

Why some strings show “Not isolated”

One string’s harmonic can occupy the same frequency as another string’s fundamental. A quiet string may also disappear beneath louder notes. The tool leaves those results unclear instead of assigning a confident tuning result.

Finish with individual notes

Select any result to measure that string alone in the same window. The live reading and instructions stay beside the controls. Mute the other strings and check it alone. Use Guided tuning for the full two-pass check. The strum experiment currently accepts six-string presets and custom six-string setups.

Explore all guitar tuning tools

KNOW YOUR TUNING

Standard: E A D G B E

Tune the open strings with the capo off. Start at the thickest string, work across, then give all six one more check.

The table shows the open-string setup at A4 = 440 Hz. For capo pitches, use the capo controls above.

Standard notes and frequencies from thickest to thinnest
StringNoteHzFrom standard
6 · thickestE282.41E2
5A2110.00A2
4D3146.83D3
3G3196.00G3
2B3246.94B3
1 · thinnestE4329.63E4

THE TUNEGUITAR GUIDE

Use the result with confidence

TuneGuitar guide · Updated 6 October 2026 · How we prepare our guides

One peak can have two explanations

A standard low E at 82.41 Hz has a harmonic near 329.63 Hz, also the fundamental of open high E. A peak there during a strum cannot prove that the first string contributed it. This is why an unresolved result is more honest than a confident six-string verdict.

Let the sweep choose the next check

Select an uncertain string and measure it alone, muting the other five. The sweep prioritises attention; the isolated follow-up supplies clearer evidence. This experiment accepts six-string setups, not twelve-string courses or seven- and eight-string instruments. It searches around expected targets and cannot identify an unknown tuning from a chord.

How to tune a guitar: a repeatable two-pass routineWhy your guitar tuner jumps, hears nothing or finds the wrong octaveCents, hertz and calibration: what TuneGuitar's numbers mean

READY FOR THE FIRST CHORD

Tune for a song.

Search 100 song setups by title or artist.

Browse all 100 songs →

GOOD TO KNOW

Using this tuning tool

Does a clear strum result prove all six strings are in tune?

No. This experimental check suggests where to listen more closely. Harmonics and unequal string volume can confuse the combined signal. Finish by checking individual strings, even when the initial display looks reassuring.

What should I do with a Not isolated result?

Select that string’s result and check it alone. Mute the other strings and pluck the selected one gently. The unclear result means the strum analysis could not separate a dependable pitch for that string; it does not identify a broken string or microphone.

Can I use this on a twelve-string guitar?

The experiment accepts six-string layouts, not twelve individual strings or octave courses. Use the twelve-string preset in the regular tuner, isolating each member of a pair. Simultaneous octave partners need separate checks.

Privacy & cookies

Your guitar audio is processed entirely on your device. We do not record it, store it or upload it.

Saved guitars, setlists and your ping preference are stored in this browser on this device. You can delete each guitar in “My guitars”. Clearing site data removes these settings and the offline cache. The offline cache contains the tuner’s pages and the code that generates reference tones, never microphone recordings.

Google Analytics (G-G2RC12Y00X) loads only after you accept analytics cookies. It measures visits and usage; microphone audio is never sent to Google. Use Cookie settings in the footer to accept or withdraw consent. Analytics cookies and your choice last up to six months. Advertising uses separate consent settings. The hosting service may process routine connection data to deliver and secure the site.

This site includes the Google AdSense publisher tag. It contacts Google to connect this site to AdSense and load any consent messages published for the site. Advertising is subject to Google’s review and the publisher’s ad and consent settings. Analytics consent does not grant advertising consent. When Google’s advertising consent message is available, use Ad privacy settings in the footer to revisit it. No microphone audio is shared with AdSense.

Last updated 13 September 2026.

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My guitars

Save the current strings, capo setup, reference sound and concert pitch for your guitar. No account needed.

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Saved only in this browser. Up to 20 guitars.

Share this tuning

This link includes your strings, capo, reference pitch and tuning mode.

Copy the link, then paste it into a message.

Keep your tuner close.

Use your browser’s menu and choose Install app or Add to Home Screen. On iPhone or iPad, open this page in Safari, tap Share, then Add to Home Screen.

Once the tuner shows “Ready offline”, reference tones and microphone tuning work without a connection. Microphone permission is still required.

Your own tuning.

Enter 4 to 12 notes in physical string order, from the thickest side. Include the octave, for example E2 A2 D3 G3 B3 E4. Use notes suitable for your strings and instrument.

Save your setup in My guitars, or share its link.

Your setlists.

A setlist keeps songs in playing order, with the tuning and capo for each one. Open a song’s setup in the tuner when you are ready to play.

Create your first setlist

Give your practice session a name, then add songs.

Create a setlist to start adding songs.

    Saved in this browser. Up to 10 setlists with 30 entries each. Shared lists open for review before saving.

    Your lists stay on this device. Songs are not played automatically.

    Share a correction.

    Describe the guitar part or version, the correct tuning and a source. You can copy or share the report with the site owner. It is not submitted automatically.