—Browser keyboard events · no permissions needed
Keyboard test
Press any key and see what the browser actually receives. The character (key) and the physical position (code) are shown separately, and you can watch whether a chord arrives together.
Press a key and see what the browser receives
key is the character this press produced, so it moves with the layout, Shift and your input method. code is where the key sits on the keyboard and does not change with the layout. Showing both is what separates "wrong key" from "different layout".
This drawing shows physical positions (US ANSI 104), not the legends printed on your keyboard: the top-left letter on AZERTY still reports KeyQ. What you actually typed is the key value below.
Chord watch
Press the chord you want to check once (say Ctrl+Shift+K), let go, then press "Set as target". Every press after that shows whether those keys reach the browser together.
No chord chosen yet.
Gap between presses
Recent browser events
No events yet
Some keys never reach the page: Fn, system shortcuts (Alt+Tab, Cmd+Tab) and browser-reserved combinations (Ctrl+W, Ctrl+T) are taken by the operating system or the browser first. A missing event is not a broken key.
When a key sends nothing, compare in another browser or on another computer before blaming the hardware.