Full Keyboard Tester Utility
Distraction-free online keyboard diagnostic appliance with full 104-key ANSI, ISO, 60%, and laptop layout testing.
Online Keyboard Tester Pro
Diagnose every key on your laptop, mechanical, membrane, or wireless keyboard instantly. Detect dead keys, switch chattering, and ghosting in real time.
Designed for Accuracy, Speed & Trust
Real-Time Visual Matrix
Instant keypress recognition with persistent checkmarks (✓) so you can track tested keys at a glance.
Deep Key Inspector
Inspect physical event.code, JavaScript key codes, press latency in ms, and active modifier flags.
100% Client-Side Privacy
Processed locally inside your web browser. Keystrokes are never logged, stored, or sent to any server.
Audio & Combo Diagnostic
Synthesize mechanical audio feedback and test key combinations like Ctrl+C, Alt+Tab, and Win+Shift+S smoothly.
How to Test Your Keyboard
Testing your keyboard takes less than 30 seconds:
- Press any physical key on your laptop or external keyboard.
- Watch the virtual keycap respond instantly on screen.
- Check for the blue checkmark (✓) indicating the key is fully functional.
- Observe the status indicators for Caps Lock, Num Lock, and Shift.
- Click "Export Report" to generate a diagnostic report for repair or warranty claims.