01
Microphone tuner and reference tones
Allow microphone access for pitch detection, or use reference tones to tune by ear without mic permission.
Online Instrument Tuner
Tune guitar, bass, ukulele, and violin using microphone pitch detection or reference tones. Audio is processed only in your browser.
Detected note
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Cents off
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Status
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Learn more
02
Alternate tuning support
Use standard guitar, Drop D, bass, ukulele, and violin presets from the same tuner page.
Frequently asked questions
Is microphone audio uploaded?
No. The Web Audio API analyzes audio in your browser and does not upload it to the server.
Is it accurate for bass?
It uses basic autocorrelation detection, but device response and room noise can affect low notes. Check by ear as well.