OnlineHardwareTest is a collection of fast, browser-based hardware checks (webcam, microphone, sound, screen, network and more) plus fix guides that explain how to solve the most common problems.
Most tests run locally in your browser using modern Web APIs. We do not upload, record, or store your camera or microphone streams on any server.
Identify issues with our diagnostic tools, follow the step-by-step fix guides to resolve them, and instantly verify the result. Simple, fast, and free.
Last Updated: 2026-02-03