Tune soprano, concert, or tenor ukulele to re-entrant G-C-E-A, Low G, Slack Key, or Soprano D with live microphone guidance.
Standard ukulele tuning is G4-C4-E4-A4. The high re-entrant G string is pitched above the C string, which is why the visual string order matters when tuning by microphone or reference note.
The target setup on this page is G4 - C4 - E4 - A4.
Pitch analysis runs continuously in the browser and displays the nearest target, frequency, and cents difference.
The tuner shows whether the current note needs to move up, move down, or is within the in-tune range.
Select a visible target to hear a clean reference pitch when you want to compare the instrument by ear.
Microphone samples are analyzed locally and are not uploaded as an audio recording.
Tune in a quiet room and play only one clear note or open string at a time.
Start with G4 - C4 - E4 - A4. Available alternatives include Standard re-entrant GCEA, Low G, Slack Key, and Soprano D.
Allow microphone access, keep the instrument close enough for a clean signal, and avoid other sustained sounds.
Play one open string and let it sustain while the tuner selects or follows its target.
Move gradually toward the center, then repeat every target because changing one string can slightly affect the others.
Use the dedicated preset when the target notes and physical string order matter more than a general chromatic reading.
Use standard GCEA for the most common setup across these three ukulele sizes.
Select Low G when the fourth string is replaced with a lower G3 string for a wider linear range.
Select a visible string manually when automatic detection follows the wrong nearby ukulele note.
Tap a string target to hear its clean reference pitch after microphone tuning.
Both use the same pitch detector, but they organize targets differently.
| Ukulele Tuner preset | Chromatic mode | |
|---|---|---|
| Targets | G4 - C4 - E4 - A4 | All twelve semitones |
| Visual layout | Instrument-specific pegs and strings | Detected note and cents |
| Best for | Ukulele Tuner | Custom tunings and other pitched instruments |
| Tuning choice | Standard re-entrant GCEA, Low G, Slack Key, and Soprano D | No instrument tuning required |
A dedicated preset is easier when you want the correct string order. Chromatic mode is more flexible when you already know the target note.
Yes. It runs in a supported browser without requiring an account or installing a tuning app.
The default targets are G4 - C4 - E4 - A4.
Yes. Allow microphone permission, keep the device near the instrument, and play in a quiet place for a more stable reading.
One semitone contains 100 cents. A negative reading is flat, a positive reading is sharp, and a value close to zero is in tune.
Other strings, room noise, overtones, and a hard attack can compete with the fundamental. Mute unused strings and read the note after it settles.
No. Live microphone analysis stays in the browser and the tuner does not create or upload an audio recording.
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