Keyboard Tester
Test physical keyboard keys, inspect browser event values, and track US 104-key coverage
Observe physical key events
Start the test, press keys normally, then review visual coverage and event details
- 01StartAttach page-level listeners.
- 02Press keysShortcuts remain available.
- 03ReviewCheck codes and coverage.
Physical keyboard input
The map follows a US 104-key keyboard, with other event codes reported separately
Start the test, then press keys on a physical keyboard.
Keyboard event details
Start the test and press a key to see its event details
US 104-key reference
Pressed and tested keys appear here while the test is active
Observation, not certification
Browsers and operating systems may reserve some keys. This tool observes available events without blocking shortcuts and does not certify rollover, latency, or hardware condition.
FAQs
Which keyboard layout is shown?
The visual reference uses a standard ANSI-style 104-key desktop layout with navigation keys and a numeric keypad.
Can it detect keys outside the visual layout?
Yes. The last-key details can show browser events even when no matching visual key exists.
Does the tester block browser shortcuts?
No. It observes keyboard events without preventing browser, operating-system, or accessibility shortcuts.
Why can some system keys not be detected?
The operating system or browser can reserve certain keys and shortcuts before a web page receives them.
Can I use an attached keyboard on a mobile device?
Yes. Start the test and press keys on an attached keyboard when the mobile browser exposes standard keyboard events.