Test the devices connected to your browser
Check a keyboard, microphone, webcam, audio channels, screen, gamepad, or display refresh rate with focused tests that run in your browser.
Focused checks without an install
Choose one device and run only the test you need. Permission-based tests wait for your action, and results stay on the current page.
Before you begin
Which browsers work best?
Current versions of Chrome, Edge, Firefox, and Safari support most checks. Gamepad, frame timing, and detailed media settings can vary by browser.
Do I need to install anything?
No. These tests use browser APIs and connected hardware directly.
Why must I grant camera or microphone access?
Browsers require explicit permission before a page can read those devices. You can stop the stream from the test or browser controls at any time.