Keyboard Keycode Viewer
Press any key
Keyboard events will be captured here
Tehnički detalji
Keyboard Keycode Viewer
What it does
This tool captures keyboard events in real time and displays every property exposed by the browser's KeyboardEvent interface. Press any key — including modifiers, function keys, arrow keys, and numpad keys — to see its exact values.
Use cases
Use this tool to debug keyboard event handlers in JavaScript applications, identify the correct property to use when mapping shortcuts, verify cross-platform key codes, or understand how modifier keys affect the reported values.
Key properties explained
event.key is the recommended modern property — it returns a human-readable string like "a", "Enter", or "ArrowUp" and reflects the active keyboard layout. event.code identifies the physical key position (e.g. "KeyA", "Numpad0") and is layout-independent. event.keyCode and event.which are numeric legacy properties that are deprecated.
Modifier keys and location
The ctrlKey, shiftKey, altKey, and metaKey booleans indicate whether modifier keys were held during the press. The location property distinguishes left vs right modifier keys and numpad keys from their main-keyboard equivalents.