Keyboard Tester
Test every key on your keyboard. Visual feedback shows which keys work. Detect stuck or broken keys.Updated 2026-03-20
Press any key on your keyboard to test it it. Working keys light up green.
Press a key...
Frequently Asked Questions
How does the keyboard tester work?
Press any key and it lights up green. This helps identify broken or stuck keys.
Does it work with all keyboards?
Yes, it works with any keyboard connected to your device.
Is this free?
Yes, completely free with no signup.