About

Learn how this independent browser-based device testing service works.

What this service does

IObit Online Device Tester is an independent collection of browser-based tools for checking device inputs, browser capabilities, and connection behavior. It is not affiliated with, endorsed by, or operated by IObit or its related companies.

How the tests work

Tests generally run in your browser using standard web APIs. Network speed and health tests necessarily exchange test data with Worker endpoints so they can measure a connection. Tests that use a camera, microphone, or location depend on browser permission and that data is not intentionally stored by this service.

Understanding results

Results describe what the current browser and device expose during the test. Browser support, permissions, extensions, drivers, and operating-system settings can affect them. A browser test can help narrow down a problem, but it cannot conclusively diagnose every hardware fault.