Browser-local processing

Keyboard Event Inspector

Browser-local keyboard event inspector for event.key, event.code, keyCode, and modifier states during shortcut and input-compatibility debugging.

Local

Capture Key

INPUT

Waiting for a key press.

Key Result

OUTPUT
event.keyCode
—
event.key
—
event.code
—
Event Summary
—
Keycode Info by Micro Tools Matrix is a free online developer tool for inspecting keyboard events without sending input to a server. Press any key and the page immediately displays event.keyCode, event.key, and event.code, making it easier to debug shortcuts, form controls, browser interactions, games, and accessibility workflows. The tool uses browser-local processing only: your keystrokes are handled in page memory, no upload is required, and no backend call is made. It is useful when comparing physical key positions with character values, checking modifier keys, or explaining why a shortcut behaves differently across browsers and operating systems. Because the interface is lightweight and responsive, it works well on desktop and mobile browsers with external keyboards. Developers, testers, educators, and product teams can keep this Micro Tools Matrix page open as a safe reference panel whenever they need quick keyboard event details.

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