Ukulele Tuner
Tune your ukulele right here in your browser — free, with your microphone, no app or clip-on needed. Standard GCEA tuning (and more), with a live note read-out.
Tune your uke in 4 steps
- Allow microphone access when your browser asks — that lets the tuner hear your uke.
- Pick your tuning — Standard (GCEA) is the default and what most songs use.
- Pluck a string and hold it close to your mic.
- Watch the dial — turn the tuning peg until the note settles in the green zone, then repeat for G, C, E and A.
How to tune your ukulele with the microphone
The easiest way to tune is to let the tuner listen. Click the mic button and allow access, then find a quiet spot — background noise confuses any tuner — and hold your ukulele close to the microphone. Pluck one string at a time. The tuner shows which note it hears and how sharp or flat you are, so you just turn that string's tuning peg until it settles on the target. Work through all four strings, then check them again, because tuning one string can nudge the others.
What is standard ukulele tuning? (GCEA)
Standard ukulele tuning is G–C–E–A, from the 4th string (nearest your face) down to the 1st. The quirk that surprises everyone: the G string is tuned high — higher than the C and E below it — so the C string is actually your lowest note. That's the tuning this tool listens for by default.
Want the full tuning guide? Tuning by ear with no mic, using a clip-on tuner, matching to a piano, and why a new uke won't stay in tune — it's all in How to tune your ukulele →
Tuner FAQ
Can I tune my ukulele with my phone?
Yes — this tuner works right in your phone’s browser using its microphone. There’s no app to install.
Do I need a clip-on tuner?
No. A microphone tuner like this one is accurate for tuning at home. Clip-on tuners are handy on a noisy stage because they read vibration instead of sound, but you don’t need one to get in tune.
What tuning does the tuner use?
Standard GCEA by default — G, C, E and A from the top string to the bottom — which is what most soprano, concert and tenor ukulele songs use. Other tunings are in the dropdown.
Why is the G string higher than the C string?
That’s re-entrant tuning — it gives the ukulele its bright, jangly sound. Some players use low-G tuning for a fuller range, but high-G is standard.
How often should I tune?
Every time you play, and more often with new strings. A uke drifts with temperature, humidity and handling — a 20-second check keeps it sounding sweet.