Headphone test
Play test tones in your own browser to check left, right and balance.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
Headphone test
How to use this tool
- Enter your values in the fields above.
- Press Generate to see the result.
- Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.
Worked example
A 440 Hz tone on the left only should be heard in the left ear only when balance is at 0.
What this tool does not do / Limits
Tones are generated in your own browser with Web Audio. Results depend on your headphones, device volume and system balance settings.
Frequently asked questions
Why do I hear sound in both ears?
Your system balance, headphone wiring or a mono setting can mix channels; check those settings too.
Is anything downloaded or uploaded?
No. The tone is generated locally in your browser.
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