Keyboard Tester

See which keys your browser detects in real time.

About Keyboard Tester

What is the Keyboard Tester?

The Keyboard Tester shows you which keys are being detected by your browser. It highlights keys as you press them and logs key events for troubleshooting.

Common uses

  • Check for stuck keys and missing keyup events.
  • Verify key mappings for different layouts.
  • Debug hotkeys using event.key and event.code.

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