Blog language update
Localized blog guides are in progress
We are preparing high-quality blog guides in more languages. For now, you can use your browser translator to read these English articles while we work with native writers and editors.
Test your keyboard online for stuck keys, ghosting, NKRO, latency, Bluetooth issues, and mobile input with a quick browser-based checklist.
Windows app
KeyboardTester.click is available from Microsoft Store
Install the official Windows app shortcut, or keep using the same free testing tools in your browser.