Keyboard Tester (Test Every Key Online)
Utility ToolsCheck that every key on your keyboard works
Press any key on your keyboard
Keys light up when pressed. Green keys stay marked so you can see which ones work.
0 of 84 keys tested.
Embed this tool on your websiteFree
- Choose how tall the frame should be.
- Press Copy code.
- Paste it into your page, blog, WordPress or Notion HTML block.
The tool runs inside your visitor's browser, nothing is uploaded, and a small "Powered by ToolCloak" line stays under it. The second line (script) is optional: it makes the frame fit the tool's height.
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History
All history →Keyboard Tester (Test Every Key Online) — at a glance
Find out which keys work and which do not.
How to use it — step by step
A physical keyboard. Just press keys.
Press keys
Each key lights up blue while held.
See key details
Key name, code and keyCode appear.
Check green keys
Keys you tested stay green.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
Why does Fn not show?+
Most keyboards handle Fn in hardware, so the browser cannot see it.
Does it work on mobile?+
It needs a physical keyboard.
Can it prevent actions?+
Yes, key presses on this page are not passed to the browser while testing.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.