Keyboard Tester
Press any key — tested keys turn green. See the key name, code and how many keys are held at once.
Runs in your browser — nothing is uploadedLast key: —Code:
—Keys held: 0 (max 0)Tested: 0Tip: click here first so the page has keyboard focus.
How to use Keyboard Tester
- Click the tester area so it has focus.
- Press every key you want to check.
- Keys that registered turn green; the log shows each event.
Formula & assumptions
- Nothing is recorded or sent anywhere — the test runs entirely in your browser.
Questions
Why don’t some keys register?
Some keys are captured by the operating system or browser (for example Windows/Command combinations, Print Screen or media keys) before a web page sees them.
What is key rollover?
How many keys can be pressed at once and still register. Hold several keys together to see the “keys held” count.