Keyboard Tester Online
Press any key on your keyboard to see it light up instantly. Test every key, check for stuck or broken keys — all in your browser.
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Key
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Code
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Key Code
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keyboardClick anywhere on the page, then start pressing keys
Test Every Key
Press each key to see it highlighted. Track your progress and make sure every key on your keyboard is responding correctly.
Find Stuck Keys
Identify keys that are physically stuck or repeating. A key that stays lit after you release it may need cleaning or replacement.
100% Private
No keystrokes are logged or sent anywhere. Everything runs locally in your browser — completely safe and private.
FAQ
Why isn't my key lighting up?
Make sure you have clicked somewhere on the page first so that the browser receives keyboard events. Some keys like the Windows/Meta key or browser shortcuts may be intercepted by the OS and not reach the page.
What do Key, Code, and Key Code mean?
Key is the character produced by the key (e.g. 'A'). Code is the physical key identifier regardless of layout (e.g. 'KeyA'). Key Code is the legacy numeric value (e.g. 65 for 'A').
Are my keystrokes recorded or sent anywhere?
No. This tool runs entirely in your browser using JavaScript event listeners. Nothing is logged, stored, or transmitted to any server.
Can I test keyboard shortcuts?
Some shortcuts (e.g. Ctrl+W, Cmd+Q) are intercepted by the browser or operating system before reaching the page. Most regular key combinations will work fine.