Keyboard Test — Verify Every Key Press
Check whether every key on your keyboard is working. This test detects individual key presses, modifier combinations, and function keys, showing which keys respond and which may be stuck or unresponsive.
Keyboard test
Keyboard Diagnostics
Test your keyboard input detection across all key categories. Use your physical keyboard — nothing leaves your device.
Before you start
- Click the test area below, then press keys on your physical keyboard.
- Try letter keys (A-Z), number keys (0-9), arrow keys, and modifier keys (Ctrl, Shift, Alt, Meta).
- This test verifies that your keyboard input is detected by the browser.
- All processing happens locally — no data leaves your browser.
This test captures browser keyboard events to verify input detection. Some keys may not fire events depending on the browser or OS. This tool reports observable behavior and does not constitute a hardware diagnosis.
StatusReady
Total presses0
Unique keys0
Categories0/8
Last key—
Modifier keys detected
CtrlNot yet
ShiftNot yet
AltNot yet
MetaNot yet
Browser limitations
- • Some keyboard events may not fire on mobile or virtual keyboards.
- • Certain system shortcuts are intercepted by the OS before reaching the browser.
- • Key codes may vary across browsers and operating systems.
- • This tool cannot detect hardware-level key matrix issues.
- • Function keys with system behavior may not reach JavaScript.
Recent keys
No keys pressed yet.