USB Recognized
Test keyboards, screens, mics and USB, free in your browser.
usbRecognized is a free online hardware testing platform with 22 browser-based tools for diagnosing keyboards, mice, gamepads, touch screens, touchpads, monitors, webcams, microphones, speakers, USB devices and printers. There is no download, no installation and no account — every test runs locally using secure web APIs, so your keystrokes, camera feed and audio never leave your computer. Check for dead pixels, backlight bleeding, color banding, greyscale uniformity, real refresh rate and frame pacing, or run the one-click Quick Device Check for a full hardware health report. Free forever in 2