Ukulele tuner
Tune your ukulele online using your microphone or reference notes.
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Start from the string closest to your face and move down.
How to use the ukulele tuner
Start listening to use Auto mode by default, then pluck any string and follow the on-screen guidance as you adjust the peg. You can optionally choose a tuning and string yourself or use the reference-note buttons to tune by ear.
Most soprano, concert, and tenor ukuleles use standard gCEA tuning (high G). Low G uses the same chord shapes with a deeper G string. Baritone uses DGBE, like the top four guitar strings, so the chord shapes are different. D Tuning is one whole step above standard and keeps a high, re-entrant fourth string. Pick Standard, Low G, Baritone, or D Tuning to match your ukulele, then check with an open chord when you finish.
Frequently asked questions
- How do you tune a ukulele?
Choose your tuning and string. For the live meter, start listening, pluck the selected string, and follow the on-screen guidance as you adjust the peg. You can also play the reference note button and match the pitch by ear, one string at a time. In standard tuning, work G → C → E → A, then check with an open chord.
- What notes should a ukulele be tuned to?
Standard tuning is GCEA: G4 (392 Hz), C4 (261.63 Hz), E4 (329.63 Hz), A4 (440 Hz). On soprano, concert, and tenor, G sits higher than C (reentrant tuning). That high G is a big part of the classic uke sound.
- What is D tuning on a ukulele?
D tuning is one whole step above standard tuning. Its strings are A4, D4, F#4, and B4 from string 4 to string 1. Choose D Tuning on the tuner and work from the string closest to your face down to B. The lowercase a in aDF#B marks the fourth string. It is the high, re-entrant string. Before raising a standard string set a whole step, check that the strings and instrument are suitable for the extra tension.
- What is the difference between low G and standard tuning?
Low G drops the G string one octave (G3 instead of G4). Chord shapes stay the same, but the range gets deeper for melody and fingerpicking. You lose some of the bright reentrant chirp.
- How do you tune a baritone ukulele?
Baritone tunes DGBE, same as the top four guitar strings: D3, G3, B3, E4. Use the baritone preset on the tuner. A simple hook is "Do good boys eat" (D G B E), or remember it as guitar's top four strings. Chord names and shapes differ from GCEA, so switch to baritone diagrams when you change instruments.
- Why won’t my ukulele stay in tune?
New strings stretch. After tuning, gently pull each string off the fretboard, then retune. Repeat through a session. If it still slips, check peg tightness and whether each string is seated in the nut.
- Can I tune a ukulele without a clip-on tuner?
Yes. Use the reference-note buttons on this page: play the target note, match your string by ear, and work one string at a time. This reference mode works without microphone access. A quiet room helps, and a clip-on tuner or phone app is another option.
- How does the live microphone meter work?
Choose a tuning and string, start listening, and pluck that string. The meter estimates the pitch in your browser and provides on-screen guidance. It is a useful guide for small adjustments; the reference-note buttons remain available if you prefer to tune by ear.
- Does the tuner upload microphone audio?
No. When you enable live listening, audio is processed in your browser to estimate the pitch and is not uploaded. Reference notes do not need microphone access.