system
Keyboard tester online — test your keys
Test every key online — live key and code display in your browser.
Press any keys. Focus the page (click the box) if nothing appears.
Waiting for a key…
Browser-only diagnostics. Grant permissions when the browser asks. Stop mic/camera when finished.
Key events stay in your browser. Nothing is uploaded.
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How the keyboard tester works
Press any key while this page is open. We read keydown events in your browser and show the key label, code and keyCode.
No drivers installed. Useful for dead keys, layout checks and remote support screenshots.
How to use
Open: Load the page on HTTPS.
Click the box: Focus the test area.
Press keys: Watch the live readout.
Share: Copy a screenshot for support if needed.
Suspect a dead key?
Mechanical switches fail; laptop keys stick; remote support asks you to prove the keyboard works.
Type here, note the code, and share a screenshot if needed.
Practical tips
- Use HTTPS and allow permissions only when needed.
- Close other tabs that hold the device exclusive.
- Try another browser if the API is blocked.
- Share the link with support if a key or button fails.
- Focus the dashed box if keys seem ignored.
- Modifier keys show their code too.
What you see
Key label, KeyboardEvent.code and legacy keyCode when available.
Privacy
Events never leave the browser for this tool.
When to upgrade gear or apps
If hardware or workflow keeps failing, a better peripheral or writing app saves time.