keyboard key code test
This page reads, in real time, the two values the browser generates for every key you press: key, the resulting character for the active layout, and code, the physical position of the key on the keyboard. Press any key, including Shift combinations, to compare both values side by side. Every reading happens only inside your browser, and no key you press here is ever logged on a server.
On both layouts the physical key in that position reports the same code, KeyA; location reads 0 because it is not a duplicated key like Shift or the numeric Enter.
The character switches from lowercase to uppercase because key follows the modifier, but code stays KeyA because the physical position of the key never moved.
That key has no equivalent position on a 104-key US keyboard, which is exactly why code needed its own identifier for this physical slot.
key follows the produced character, which changes with layout and modifiers; code follows the physical key position, which is always the same. That is why the same physical key can produce different letters on different layouts.
Because key is translated by the operating system according to whichever layout is active at that moment; code does not change, so comparing the two on this page is the fastest way to confirm whether the issue is the selected layout or the physical key itself.
Because the game most likely listens to code, and the physical cluster used for W, A, S and D stays in the same spot on the keyboard no matter which layout is active; only the character reported by key would change, not the position that code identifies.
It is the legacy numeric property that came before key and code, an integer per key with no clean relationship to the character typed; the UI Events specification marks it deprecated, and this test does not use it as its main reference.
location tells physically duplicated keys apart: 0 is the standard position, 1 marks the left side of the keyboard, 2 marks the right side, and 3 marks the numeric keypad, which resolves the ambiguity between the main Enter and the numeric Enter.
Keys are processed locally and not logged outside this tab.