DeviceCheckHub is a free set of 318 browser tools. The device tests check your camera, microphone, speakers, keyboard, mouse, monitor, game controller and touch screen, and they run locally: nothing you test is uploaded. Next to them are everyday calculators, converters and timers, plus PDF, image and audio tools that process your files in the browser too, so a contract you sign or a scan you OCR never leaves your device. Nothing to install, no sign-up and nothing behind a paywall.

DeviceCheckHub

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