Keyboard Tester — NKRO & Combo Diagnostics

Click anywhere on the page to focus. With Capture enabled, browser shortcuts are prevented so we can see raw events.
Active keys: 0 Max simultaneous: 0 Events: 0

Live Status

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CTRL
SHIFT
ALT
META
Currently pressed:
Tip: Try pressing many keys at once to check rollover. Then test combos like Ctrl+C/V/X, Ctrl+Z/Y, Ctrl+Shift+Z.

Combo / Hotkey Tests

Per-Key Diagnostics

Some OS-level shortcuts (e.g., Alt+Tab) cannot be captured by browsers. This tool works best in a regular page (not inside inputs). Keep this tab focused.

Desktop. Some OS shortcuts (Win key, Alt+Tab, etc.) can't be captured.