Keyboard Test
Test keyboard key functionality, display key status and key value information in real-time
Key History
What is Keyboard Test?
The keyboard test tool helps you detect whether keyboard keys are working properly, display key status and key codes in real-time, and view key history. All processing is done locally in the browser, no data is uploaded.
How to Use
1. Focus your mouse on the test area 2. Press any key on your keyboard 3. Observe key highlight and info panel 4. View key history below
Tips
- Green highlight indicates the key is working properly - All standard keyboard keys can be tested - Supports detecting modifier keys (Ctrl, Shift, Alt, Meta) - Repeated keys will be marked in the info panel
FAQ
Why do some keys not respond?
Some system shortcuts (like Alt+Tab, Ctrl+Alt+Del) are intercepted by the operating system and cannot be detected by the browser. Some function keys may be disabled in certain browsers.
What does key location mean?
Key location indicates the physical position of the key on the keyboard: Standard (0) for regular keys, Left (1) for left modifier keys, Right (2) for right modifier keys, Numpad (3) for keypad area keys.
What's the difference between key and code?
key represents the character value of the key (like 'a', 'A'), affected by keyboard layout and modifiers; code represents the physical identifier of the key (like 'KeyA'), unaffected by keyboard layout, suitable for games and shortcut bindings.
How to tell if the keyboard has issues?
If the virtual keyboard doesn't highlight or the info panel doesn't show anything after pressing a key, it could be a keyboard hardware issue, connection problem, or system setting issue. Check keyboard connection or try other applications.