Inspect key events reported by the browser, including key names, codes and modifier states. This helps identify a key the browser receives without installing keyboard software.
How to use this tool
- Click the test area so it has focus.
- Press the keys or combinations you want to inspect.
- Compare the displayed key and code with the expected behavior.
How to interpret the result
Operating-system shortcuts and reserved browser combinations may never reach the page. Keyboard layouts, input methods and accessibility software can change events. A missing event here alone does not prove physical hardware failure.
Frequently asked questions
Why do key and code differ?
Key describes the interpreted input; code identifies a physical-key position according to browser conventions. They can differ across layouts.