Pitch Please Get the iPhone app Free online ukulele tuner
Four strings.Ready to play.
Tune your ukulele in your browser. Choose high G, low G or baritone, hear each reference note, and use the microphone to see whether your string is flat or sharp.
No account or download needed. Sound starts only when you tap a note.
See the notes for every stringTurn on JavaScript to use the tuner and play reference tones.
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How to tune
- Choose the tuning that matches your instrument and strings. Soprano, concert and tenor ukuleles commonly use high-G G4, C4, E4, A4. Baritone uses D3, G3, B3, E4.
- Tap a reference note to hear the target, or choose Start listening and allow microphone access. Work in a quiet space and mute the other three strings.
- Pluck one open string. Check its letter and octave, then adjust the tuning peg gradually. Negative cents is flat; positive cents is sharp.
- Check all four strings again. New ukulele strings can settle and need several tuning passes before they stay close to pitch.
Notes and frequencies
The notes run from string 4, the G-side string on a standard ukulele, to string 1, the A-side string. Frequencies use A4 = 440 Hz.
| String | Note | Hz |
|---|---|---|
| 4 | G4 | 392.00 |
| 3 | C4 | 261.63 |
| 2 | E4 | 329.63 |
| 1 | A4 | 440.00 |
| String | Note | Hz |
|---|---|---|
| 4 | G3 | 196.00 |
| 3 | C4 | 261.63 |
| 2 | E4 | 329.63 |
| 1 | A4 | 440.00 |
| String | Note | Hz |
|---|---|---|
| 4 | D3 | 146.83 |
| 3 | G3 | 196.00 |
| 2 | B3 | 246.94 |
| 1 | E4 | 329.63 |
High G, the usual GCEA tuning
In high-G tuning the fourth string is G4, above the C4 string beside it. This is re-entrant tuning: the notes do not climb steadily from string 4 to string 1. A high G sounding above the C is expected.
Low G
Low-G tuning changes only the fourth string to G3, one octave below G4. C4, E4 and A4 stay the same. Use a string intended for low G; it is not simply a high-G string tuned down.
Baritone
A baritone ukulele commonly uses D3, G3, B3, E4, the same pitches as the four highest strings of a guitar. Choose Baritone in the tuner instead of following the standard high-G notes.
Tuning questions
Why is the G string higher than the C string?
That is normal in high-G tuning. G4 is above C4, so the fourth string is not the lowest-pitched string. Select Low G only when your ukulele has an appropriate low-G string fitted.
Is tenor ukulele tuning different from soprano or concert?
Soprano, concert and tenor commonly use the same GCEA note names. Some players fit a low-G string. Baritone commonly uses DGBE, so check the instrument and strings before choosing a tuning.
Do I need an app or an account to use this tuner?
No. The browser tuner and reference tones work on this page without an account or download. A modern browser with microphone access is needed for pitch detection; reference tones can be used without the microphone.
What does the iPhone app add?
Pitch Please adds instrument string targets, additional and custom tunings, a metronome and other music practice tools. All tools are free with ads, with optional ad removal. The app requires iOS 18 or later and its interface is in English.
Keep practicing on iPhone
Keep string targets, more tunings and a metronome close at hand. Every tool is free with ads, with optional ad removal.
iPhone, iOS 18 or later, English interface.
