Free Online Key Tester
Keyboard Test
Check whether your keyboard keys are detected by the browser. Click the test panel, press keys, and watch working keys light up instantly.
This is useful when a key feels stuck, a new keyboard arrives, or you want to confirm that modifier keys and letters are being read correctly.
Live key detection
Press keys and see the latest key, code, and tested count.
How It Works
Focus the panel and press keys.
The keyboard tester listens for keydown events inside the test area, then displays the key label and physical key code reported by your browser.
Detected keys are highlighted on the on-screen keyboard layout.
See the physical key code, which is useful when keyboard layouts differ.
The test runs in your browser without downloading software.
What can a keyboard test check?
A browser keyboard test can confirm whether common keys send input events. It can help you spot keys that do not respond, keys that trigger the wrong code, or modifier keys that feel inconsistent. It cannot repair hardware, but it gives you a quick first check.
Why do some keys behave differently?
Keyboard layouts, operating system shortcuts, browser shortcuts, and function layers can change what a key reports. If a key is reserved by your system, the browser may not receive it normally.
Keyboard Test FAQ
What can a keyboard test check?
A keyboard test can confirm whether common keys send input events, show key codes, and reveal keys that do not respond normally.
Why does the keyboard test need focus?
Browsers send keyboard events to the focused page or element, so clicking the test panel first helps the page receive your key presses.
Does this work with external keyboards?
Yes. USB, Bluetooth, laptop, and many tablet keyboards can be checked if the browser receives their input.