Test your device.
Check a keyboard, screen, mouse, or webcam in your browser. Choose the test that matches what you want to inspect.
About
Use the keyboard test to see detected physical key positions, the pixel test to inspect solid colors, the mouse test for buttons and scrolling, or the webcam test for a live preview and browser-reported camera details. Each tool runs here without an account.
Frequently asked questions
Which test should I use before a video call?
Open the webcam test to check the picture and choose a camera. You can also check your keyboard and mouse before joining a call.
How do I check a screen for a stuck pixel?
Open the screen pixel test, compare its six solid colors, and use fullscreen to inspect the whole display.