Keyboard Key Tester
See which key events your browser detects while testing an attached keyboard, including modifiers and repeat signals.
Play Keyboard Key Tester
Focus the test field and press individual keyboard keys.
How to play Keyboard Key Tester
Focus the test field and press individual keyboard keys.
How results are calculated
Detected key, code, modifier and total keydown event count.
Accuracy, limitations and fair comparisons
Some OS-reserved shortcuts never reach the browser. The challenge runs in your current browser session; compare repeated attempts on the same device for a more useful personal reference.
Questions and answers
Is Keyboard Key Tester free?
Yes. This activity is free and does not require registration.
Does this test upload my input or score?
No. Gameplay and optional history storage run in your browser on this device; exporting a result requires your own action.
What is the measured result?
Detected key, code, modifier and total keydown event count.
Can the result be treated as a medical or hardware diagnosis?
No. Some OS-reserved shortcuts never reach the browser.
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