Keyboard Tester Pro
Check whether every key on your keyboard is working correctly with instant feedback directly in the browser.
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Working
Keys highlighted in green were successfully detected by the system.
Ghosting Test
Press several keys at the same time to test your keyboard's rollover limit.
100% Local
No keystrokes are sent to our servers. Processing happens only inside your browser.
Complete Guide: Online Keyboard Tester
Learn how to identify defects, test ghosting, and validate your keyboard for work or gaming.
The tool listens for browser keyboard events and highlights the matching key on screen. If a physical key is pressed and nothing lights up, that is a strong sign of hardware failure or poor contact.
For both new and used keyboards, the test helps detect dead keys, intermittent failures, and worn switches before they become an expensive problem.
Ghosting happens when the keyboard cannot correctly register multiple keys pressed at the same time. This matters especially for gaming, shortcuts, and fast typing.
Disconnect it immediately. Dry it carefully, use proper cleaning with isopropyl alcohol when needed, and only test it again after it is fully dry.
Processing happens client-side, with no key data sent to the server. Even so, as a basic safety rule, do not use real passwords on testing pages.
Yes. If the operating system recognizes the device as a keyboard and the browser receives the events, the test should work normally.
Yes. The test is useful for validating fast response, simultaneous key combinations, and trust in your peripheral before matches, practice, or tournaments.