Tier A - Direct Browser Interaction Ready

Online Keyboard Tester & Key Matrix Checker

Interactive virtual keyboard layout to test every key, function key, and modifier. Listens to standard keydown and keyup events to illuminate matching keys on a virtual keyboard layout in real time.

Interactive Keyboard Matrix Tester

0 Keys Verified

Press any key on your physical keyboard. Keys will turn Blue while pressed and Green once confirmed working. Browser shortcuts (Tab, Space, Alt) are safely handled.

Last Code: None
Last Key: None
Key Location: Standard

How to use this test

  1. Press any key on your physical keyboard.
  2. Confirm that the corresponding key lights up green on the virtual layout.
  3. Test modifier keys (Shift, Ctrl, Alt) and Function keys (F1-F12).
  4. Review the detected key code and event history table.

How to understand your result

Looks good: All pressed keys registered distinct event codes.
Issue observed: A physical key press produced no event or repeated erratically.

Troubleshooting: what to try next

  • Clean beneath keycaps with compressed air to remove debris.
  • Ensure external keyboard USB cable is firmly connected.

What this test cannot tell you

Operating system secure keys (e.g. Ctrl+Alt+Del) cannot be intercepted by web pages.

Frequently Asked Questions

EP
Tested & Reviewed by [REAL AUTHOR NAME - OWNER TO COMPLETE]
Last Reviewed: 2026-10-17 • Test Method: keydown and keyup event listener mapping to SVG/DOM key matrix • How We Test