WebKeyEvent is a free, browser-based keystroke recorder for testing and debugging keyboard input. It listens for keydown and keyup events on this page and logs each one with its virtual-key code, mapped scan code, key state, and output character. You can copy the results or save them as CSV — both happen locally in your browser, and your keystroke data is never uploaded.
WebKeyEvent is a testing tool for developers, QA engineers, and keyboard enthusiasts. It records only the keydown and keyup events that reach this page while it is focused — it cannot see what you type in other apps, other tabs, or the background. Scan codes and the ANSI/JIS columns are derived from reference mappings, not read from your hardware, so values may differ from what your keyboard or OS actually produces. Use the results for testing and reference, not for production, compliance, or security-critical decisions.
| Timestamp | Virtual Key Code (dec) | Scan Code | Key State | Virtual Key (Base) | Output Character | ANSI Key (Base) | JIS Key (Base) | ANSI Key (Shift) | JIS Key (Shift) |
|---|
What you can check with WebKeyEvent
- Look up the virtual-key code and mapped scan code for any keydown or keyup event, with reference values for ANSI and JIS layouts.
- Verify that a remapped key or keyboard shortcut produces the browser event you expect.
- See which character a key outputs with and without Shift, as reported by the browser.
Looking for more free, browser-based utilities? Browse all Musashino Software web tools.