How it works
- Choose the layout printed on your keyboard, for example US, UK or German.
- Press every key. Keys turn blue while held down and green once they have worked.
- Look for keys that stay gray, which may be dead, and keys that stay blue after you let go, which may be stuck.
Find dead and stuck keys
A key that doesn’t light up is not reaching the computer: it may be dirty, worn or disconnected. A key that stays blue after you let go is stuck. Both are common after spills and years of use, and a quick test tells you whether the problem is the keyboard or a program.
Layouts for every country
The drawing follows the keyboards sold in each country: QWERTY for the US and the UK, the Italian and Spanish layouts, AZERTY for France, QWERTZ for Germany and ABNT2 for Brazil. The page recognizes keys by their position, so the right key lights up even if your computer is set to a different layout.
Key codes for programmers
Under the keyboard you see the key value, the code and the old numeric key code of the last key you pressed. It is useful when you set up shortcuts, games or macros.
Questions and answers
Why doesn’t the Fn key light up?
Fn is handled inside the keyboard and never reaches the computer, so no website can see it. The same goes for some media keys.
Some keys still open menus or change the volume: is that a problem?
No. Keys such as Print Screen, the volume keys or the Windows key may still trigger their action in the operating system. The tester only shows what reaches the browser.
Can I test a phone or tablet keyboard?
On-screen keyboards don’t report which key was pressed, so the tester works with physical keyboards, including Bluetooth keyboards connected to a tablet.
Does it record what I type?
No. Keys are shown on this page only and nothing is sent anywhere.
More tests
Your results stay in your browser: we don’t store them on our servers.
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