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How to Use Keyboard Test: Complete Guide (2026)
Learn how to use keyboard test free online — no signup, no download. Follow our step-by-step guide below.
What is Keyboard Test?
Test all keys on your keyboard in real-time. Detects key presses, shows key codes (key, code, keyCode), and identifies unresponsive or stuck keys. Supports modifier keys detection and displays which keys are being held simultaneously. Essential for troubleshooting keyboard hardware issues.
- 100% browser-based — no data uploaded to servers
- Free to use — no signup required
- Instant results — no waiting
- Works on all devices — mobile, tablet, desktop
How to Use Keyboard Test: Step-by-Step
- 1
Focus the test area
Click on the keyboard test area to give it focus.
- 2
Press keys
Type on your keyboard. Each key press lights up on the virtual keyboard.
- 3
Check key codes
View the key (character), code (physical key), and keyCode (legacy) values for each keypress.
Common Use Cases
Keyboard troubleshooting
Identify dead or stuck keys on a physical keyboard.
Keybinding development
Understand which key codes your app will receive for specific key combinations.
Accessibility testing
Verify that all keys on a specialized keyboard (ergonomic, gaming) are recognized.
FAQ About Keyboard Test
What is the difference between key and code?
'key' is the character value (e.g., 'a', 'A', '1'). 'code' is the physical key position (e.g., 'KeyA') regardless of keyboard layout.
Why doesn't my media key show up?
Media keys (play/pause, volume) are often handled at the OS level and don't generate standard keyboard events. They may not appear in the tester.
Is this tool useful for game development?
Yes. Use it to understand which physical keys map to which key codes when implementing WASD or arrow key controls.
Ready to Try Keyboard Test?
No signup. No download. 100% free.