Web
Keyboard event tester
For frontend shortcut debugging: press a key to inspect its key, code, and modifier state.
Ready when you are
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Choose an actionClear options. Predictable results.
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Using this tool
Press keys in the capture area to inspect key, code and modifier states for frontend shortcuts.
Actions: Process
Example
Focus the capture area, press A, then Shift+A. Observe key case and shiftKey changes; the physical code is typically KeyA.
Input / action
Focus the capture area, press A, then Shift+A.
Result / expected behavior
Observe key case and shiftKey; the physical code is typically KeyA.
Scope and limitations
- Keyboard layouts, input methods and reserved shortcuts affect events; this is not a hardware fault test.
Common mistakes
- Focus the capture area first; Tab and Esc remain available for leaving the area.
Related tools
Privacy and browser support
Input is processed in this browser. Do not use real keys or active sensitive credentials as demonstration data. Device features require browser support and your permission.