Press the keys to check whether they're working. Keys light up as they're pressed. Layout shown follows the US ANSI (QWERTY) standard, but key detection works with any physical keyboard.
Important notice: This site and all of its tests are provided free of charge and on an experimental basis. We are not responsible for any damage, instability, crashing or overheating caused to your computer during or after running the tests. Use responsibly — if your system shows signs of instability, stop the test immediately.