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Keyboard Checker

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Keyboard Tester

Test your physical keyboard by pressing keys and viewing live key name, code, value, and press counts.

Keyboard testerTest keyboard

Keyboard Test

Run a complete keyboard diagnostic that tracks which keys have been tested across your entire keyboard.

Keyboard testFull keyboard test

Key Tester

Test individual keys one at a time and see exactly what name, code, and value each one reports.

Key testerTest a key

Key Rollover Tester

Detect how many keys your keyboard can register simultaneously and test for ghosting issues.

Key rollover testerN Key rollover test

This keyboard checker gives you a simple, visual answer to 'are all my keys working?' - press each key on your keyboard and watch it turn green on the on-screen diagram, confirming it registered correctly. Any key that stays unmarked after you've pressed it is worth a closer look, whether that means a hardware fault, a stuck key, or an OS-level conflict. It's a stripped-down, checker-focused sibling to the full Keyboard Test diagnostic - less detail per key, faster to scan visually across the whole board.

Features

  • ✓Simple green/unmarked visual state per key
  • ✓Full keyboard diagram at a glance
  • ✓Reset to start a fresh check
  • ✓No extra detail panels - just pass/fail visibility

Why use this keyboard checker?

  • Instant results with no page reloads or server round trips
  • 100% private - everything runs locally in your browser, nothing is uploaded
  • Fastest visual way to spot a dead or stuck key
  • Completely free with no signup, installs, or usage limits

Frequently asked questions

What does it mean if a key never turns green?

It means that key hasn't registered a keydown event yet - press it again to confirm, and if it still doesn't respond, it may be faulty or blocked by a system shortcut.

Is this the same as the Keyboard Test tool?

It's similar but simpler - Keyboard Checker focuses purely on the working/not-working visual, while Keyboard Test adds a tested-key counter and detail panel.

Can I check a laptop's built-in keyboard the same way?

Yes, this works with any keyboard your browser can receive key events from, including built-in laptop keyboards.