Question 1

How do I test my keyboard online?

Accepted Answer

Click anywhere on the page to focus it, then press any key on your physical keyboard. The corresponding virtual key on the on-screen layout will light up green. Press every key systematically to verify all of them work.

Question 2

How do I know if a key is stuck?

Accepted Answer

A stuck key stays lit even after you release it. The key event log shows 'stuck' for any key that doesn't fire a keyup event within 1 second. Common causes: debris under the key, mechanical failure, or a software issue.

Question 3

What is N-key rollover (NKRO)?

Accepted Answer

NKRO is the ability of a keyboard to register multiple simultaneous key presses. Most modern keyboards support 6-key rollover or full NKRO. Hold down several keys at once — if all of them stay lit, NKRO works.

Question 4

Is my keystroke data safe?

Accepted Answer

Yes. All key events are processed locally in your browser. Nothing is logged, sent, or stored on any server. Close the tab to clear all session data instantly.