About Device Tester

Device Tester provides free browser-based diagnostics for common device checks. The tools are designed to be fast, simple, and privacy-conscious.

Learn about this browser-based utility for testing keyboards, cameras, microphones, displays and speakers.

Learn about this browser-based utility for testing keyboards, cameras, microphones, displays and speakers.

Device Tester provides free browser-based diagnostics for common device checks. The tools are designed to be fast, simple, and privacy-conscious.

Open the tool, grant only the browser permissions that are required, then follow the on-screen instructions. Results are shown in the browser.

The test is designed to run locally in your browser. Device access depends on browser permissions and may vary by browser or operating system.

If a test does not respond, refresh the page, check browser permissions, disconnect and reconnect the device, or try another modern browser.