What is event.code vs event.key in JavaScript?

keyboard

Private (Runs in Browser)

Free Utility

Key Code Tester & Event Inspector

Press any key on your keyboard to instantly inspect JavaScript KeyboardEvent data: event.key, code, which, keyCode, and modifier states.

JavaScript keyCode / which

Press any key on your physical keyboard to inspect it

event.key

Space

Character value

event.code

Space

Physical key location

event.which

Deprecated legacy code

event.location

Standard

Active Modifiers:

CtrlShiftAlt / OptionMeta / Cmd / Win

JavaScript Event Listener Snippet

if (event.code === "Space") {
  // Action for Space
}

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Frequently Asked Questions

event.key represents the character generated by the key press considering layout, Shift, and Alt modifiers. event.code represents the physical key on the keyboard.

Related Utilities

Accent Keyboard Ascii Table Base64