Ukulele Tuner Online

Standard ukulele tuning for soprano, concert, and tenor ukuleles is G4 C4 E4 A4, commonly written as G C E A. This uses a high-G fourth string, which means the strings do not go from low to high in pitch — the G string sits higher than the C string. This is called reentrant tuning and gives the ukulele its characteristic bright sound.

Baritone ukuleles use D G B E tuning — the same as the four highest strings on a guitar. This makes it easy for guitarists to pick up the baritone ukulele without learning entirely new chord shapes, though the chord names will differ from standard ukulele tuning.

Yes. Standard high-G reentrant tuning (G4 C4 E4 A4) is fully supported. Some players prefer low-G tuning, where the G string is tuned an octave lower. Select the low-G preset if available, or manually tune the G string to G3 instead of G4 — the tuner will identify the note correctly either way.

New ukulele strings — especially nylon or fluorocarbon — stretch a lot during the first week of use. Tune the ukulele, play for a few minutes, then tune again. Repeat this several times a day for the first week and the strings will stabilize. Temperature and humidity changes also affect nylon strings more than metal strings, so store your ukulele away from direct sunlight and heating vents.

Yes. On iPhone and iPad, Safari grants microphone access correctly from iOS 14.3 onwards. On Android, Chrome and Firefox both work well. Make sure you have allowed the browser to use the microphone in your device settings.

Yes. Soprano, concert, and tenor ukuleles all use the same standard G C E A tuning, so you tune all three exactly the same way. The physical string tension and scale length differ, giving each size a different tonal character, but the target notes are identical. Baritone ukuleles are the exception — they use D G B E tuning, the same as the highest four strings of a guitar.

In high-G (reentrant) tuning, the G string is tuned to G4 — above middle C — which makes it higher than the adjacent C string. This is the traditional ukulele sound. In low-G tuning, the G string is tuned to G3 — an octave lower — giving the ukulele a fuller, more guitar-like bass. Low-G is preferred for fingerpicking and solo arrangements. Select the correct preset on TuneUniversal so the target note matches your string.

Concert ukulele tuning is identical to soprano: G4 C4 E4 A4. Pluck each string one at a time and match it to the target note shown on the tuner. The concert ukulele's slightly longer scale length gives the strings a little more tension and a slightly rounder tone than a soprano, but the tuning process is identical. If the tuner cannot detect the G or A strings clearly, move the device a few centimetres closer to the strings.

Always tune up to the correct pitch rather than down. If a string is sharp, loosen it past the target and then tighten back up to it. Arriving at pitch from below means the string is under increasing tension at the exact pitch, which keeps it more stable and reduces slipping. Arriving from above leaves the peg under decreasing tension and the string is more likely to slip flat within minutes.

Enable the microphone, pluck each string clearly and adjust the peg until the needle centres on the correct note.

Yes. Select the D-G-B-E baritone preset and tune each string accordingly.