How to use the Keyboard Tester
- Press keys on your keyboard
- Tested keys light up on the screen
- Find keys that do not respond
About this tool
Test every key on your keyboard online and find stuck or broken keys. Keyboard Tester is part of ToolNest's collection of free web & device. It works instantly in your browser with no account and no installation.
Frequently asked questions
Is the Keyboard Tester free to use?
Yes. Keyboard Tester on ToolNest is completely free, with no sign-up, no watermark and no daily limits.
Is my data stored?
No. Most checks run entirely in your browser. Tools that must contact a network service — such as the speed test or IP lookup — only send what is needed to get the result, and we never store it.
Does Keyboard Tester work on mobile phones?
Yes. ToolNest works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux. There is nothing to install.