Keyboard Not Working (Browser Key Test)

Test every key in your browser and confirm NKRO/anti-ghosting behavior in seconds.

OS Limitations: The "Fn" key and system-level shortcuts (like Windows Key + L) are intercepted by your Operating System and cannot be detected by any web browser.
Current Keys
0
Max KRO
0

Troubleshooting

Reconnect the keyboard and try a different USB port or re-pair Bluetooth, then re-run the key test. Disable Sticky Keys and any remapping software that may block key events. If the keyboard is still not detected, test on another device to confirm whether the issue is hardware.

Pro tip

Try another USB port or reconnect Bluetooth, then re-run the test to confirm stability.

Common symptoms

  • Keyboard not detected
  • No key input
  • Connection problems

Keyboard test not working gives you a fast baseline to see whether the browser is receiving key down and key up events.

A common case is a keyboard that works in BIOS or on the lock screen but fails in a specific app. Another is a Bluetooth keyboard that reconnects but does not send input until you toggle Bluetooth off and on.

This tester shows key down and key up events in real time. It does not repair hardware, but it helps you confirm whether the signal reaches the browser. That is useful because it separates a real keyboard fault from a setting, a shortcut, or an app-specific filter. Keep the keyboard test not working run short and repeatable.

Do not assume one failed shortcut means hardware failure. Many apps reserve keys, especially function rows and media keys.

When you run keyboard test not working, treat it like a simple checklist: press keys one by one, then try a few combinations that matter to you. First click inside the tester so the page has focus, then press a simple key like Space. If you get nothing, move to connection checks. If only a few keys fail, it is usually layout, remaps, or a physical problem with those switches.

- Try a different USB port, avoid hubs while testing - Re-pair Bluetooth, and make sure the battery is not low - Disable Sticky Keys, Filter Keys, and any remapping utilities - Test on another device to confirm whether the issue follows the keyboard

Use the Input tests to find related checks. For the clean page, open the keyboard test tool. If you still feel something is off, re-run keyboard test not working after one change at a time so you know what helped.

FAQ

What is ghosting on a keyboard?

Ghosting happens when certain key combinations do not register due to matrix limitations. Anti-ghosting and NKRO keyboards handle more simultaneous presses.

Why does a key type twice?

Double typing can be caused by switch bounce, dirt, or overly sensitive repeat settings. Clean the key area and test again; hardware issues may need repair.