Free Online Tuner
Play an A4 reference tone at 440 Hz and tune your instrument by ear.
This tuner does not listen to your microphone; it plays the pitch for you to match.
- Runs locally
- Press Run
- Tune by ear
- Repeat
- Free
- No sign-up
- Runs in your browser
- No watermark
This tool runs in this browser tab and does not ask for an account. What you enter is not sent to PoYo.
Use cases
Where it helps
Quick answers
Open the page and get a result without installing an app.
Any computer
It works in a current browser on Windows, macOS, Linux or ChromeOS.
Nothing to clean up
Close the tab when you are done. PoYo keeps no copy.
Three steps
How to use Free Online Tuner
Press Run
An A4 reference tone plays at 440 Hz.
Tune by ear
Adjust the string until it matches the tone.
Repeat
Play the tone again whenever you need it.
Features
What this tool includes
Runs locally
This tool runs in this browser tab and does not ask for an account. What you enter is not sent to PoYo.
Press Run
An A4 reference tone plays at 440 Hz.
Tune by ear
Adjust the string until it matches the tone.
Repeat
Play the tone again whenever you need it.
PoYo
Need a new image or video?
These free tools work on files you already have. To create an image, video or audio from a description, open a PoYo generator.
Free Online Tuner FAQ
Do I need an account?
No. Open the page and use it.
Is what I enter sent anywhere?
This tool runs in this browser tab and does not ask for an account. What you enter is not sent to PoYo.
Does it cost anything?
No. It is free and does not use PoYo credits.
Can I use it on my phone?
Yes, in a current mobile browser. Tools that need a physical keyboard or mouse are easier on a computer.
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Play an A4 reference tone at 440 Hz and tune your instrument by ear. This tuner does not listen to your microphone; it plays the pitch for you to match.