Fast outside · Stable at center
Tuner
Microphone required
Audio is analyzed only in your browser.Enable microphone access in your browser settings.
A4 440 Hz
Adjustable from 430 to 450 Hz.
Microphone access is blocked.
Allow microphone access in your browser settings, then try again.
No microphone was found.
Connect or enable a microphone, then try again.
This browser does not support microphone access.
Use a browser that can access the microphone.
The microphone could not start.
Close other audio apps and try again.
Tune by microphone, directly in your browser
To tune any note, choose the all-note mode. Choose an instrument when you want string guidance, alternate tunings, or a manual string lock. Microphone audio stays on your device and is not uploaded.
Test Log
Feedback
How was this tool?
A quick rating helps improve this tool. You can send feedback with just stars and checkboxes.
Written comments may appear on the public Comments page. Ratings without a written comment are not posted publicly. Do not include your name, email address, or other personal information.