Why DeviceTest?
DeviceTest provides free, browser-based tools to test and diagnose your device hardware. No downloads, no sign-ups, no permissions beyond what's needed. Every tool runs locally in your browser — we never record or transmit your data.
All tools are 100% free
Test your microphone before a Zoom call, clean your phone speaker after a splash, check your webcam before a job interview, or test your new mechanical keyboard — all without installing anything.