TEST DE CLAVIER EN LIGNE
Appuyez sur chaque touche. Repérez celle qui ne répond plus.
Testez immédiatement votre clavier AZERTY, sans installation et sans enregistrer votre saisie.
CLEAR RESULTS
Read the keyboard at a glance.
Reserved ad space — kept outside the keyboard so testing stays fast.
KeyCheck uses them only for live visual diagnostics. Only your chosen layout and keyboard form are saved locally.
TROUBLESHOOTING
Keyboard test FAQ
Practical answers without delaying the test.
A key does not light up. Is it broken?
Not necessarily. Try the key in another browser and another application. Browser shortcuts, accessibility settings, drivers, wireless interference, debris, or hardware damage can all affect the result.
Why can't KeyCheck detect the Fn or Power key?
Many laptops process Fn, Power, brightness, and some media keys in firmware or the operating system before the browser receives them. Their absence here does not prove they are faulty.
The key lights up but types the wrong character.
The hardware signal is arriving. Check the active operating-system language and select the physical legend that matches your keyboard in KeyCheck.
What are ghosting and rollover?
Rollover is how many keys a keyboard can report together. Ghosting occurs when a combination is missed or reported incorrectly. Use Advanced mode and hold several keys to inspect the limit.
What should I do after spilling liquid?
Stop testing, power the device off, disconnect external power, and seek qualified service—especially for a laptop. Do not add cleaning liquid or heat while the device is powered.
Does KeyCheck record what I type?
No key history is sent or stored by this tester. Testing happens client-side; local storage remembers only your selected layout and physical keyboard form.