Keyboard Tester
Click anywhere on this page, then press keys.
Check whether every key on your keyboard is working with this instant online tester. Press any key and it shows you the key name, the physical key code, and the numeric code, and it lights up the most recent keys you pressed so you can spot ones that are dead or sticky. This is genuinely useful when you have spilled something on a laptop, bought a used keyboard, or are troubleshooting a key that seems to repeat or not register. Developers can also use it to grab the exact event codes for a key binding. Nothing you type is stored or sent anywhere, it is only read to display the key information, so it is safe to hammer away. Just click into the page and start pressing keys to see them respond in real time.
How to use Keyboard Tester
- Click into the tester area.
- Press each key on your keyboard.
- Watch each key light up with its name and code.
- Note any key that does not respond.
Frequently asked questions
What does it show when I press a key?
Pressing a key lights it up and shows its name and key code, confirming the key registered.
Can it help find a broken key?
Yes. Press every key and any that does not light up may be faulty, which helps diagnose keyboard problems.
What is a key code?
The key code is the numeric or string identifier the browser reports for a key press, useful for developers and troubleshooting.
What is Keyboard Tester?
Check whether every key on your keyboard is working with this instant online tester. Press any key and it shows you the key name, the physical key code, and the numeric code, and it lights up the most recent keys you pressed so you can spot ones that are dead or sticky.
Is Keyboard Tester free to use?
Yes. Keyboard Tester is completely free, with no sign-up and no usage limits.
Does Keyboard Tester work in a web browser?
Yes. Keyboard Tester runs in any modern web browser. There is nothing to download or install.
Is my data private with Keyboard Tester?
Yes. Keyboard Tester runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Badge
Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/keyboard-tester)