TuneUniversal
Online Piano tuner
Tune Piano online with your microphone. Reference notes: Do - Re - Mi - Fa - Sol - La - Si.
Digital tuner
Lock selected stringRecommended: choose a string and the tuner stays on that target.
Reference tone
Do4 / 261.63 Hz
All-string check
Strum all open strings once to see which strings are out of tune.
FlatIn tuneSharp
Detected note
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Frequency--
Cents--
TargetDo4
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Piano Standard Strings: Do - Re - Mi - Fa - Sol - La - Si
+/-5 cents = In tune
Move the instrument closer to the microphone.
Play one open string and let it ring.
Use Manual mode in noisy rooms.
How it works
- Select Piano in the tuner.
- Allow microphone access.
- Play one string or note at a time.
- Tune until the indicator is centered.
FAQ
Does the Piano tuner work on mobile?
Yes. Open TuneUniversal in your browser and allow microphone access.
Which reference notes are included?
This tuner page uses these reference notes: Do - Re - Mi - Fa - Sol - La - Si.