whitescreenhd

About whitescreenhd

whitescreenhd is a free browser-based toolkit for checking screens, cameras, microphones, keyboards, sensors and other hardware. It is aimed at people who want to diagnose a device quickly without installing anything, such as someone checking a monitor for dead pixels or testing a webcam before a call.

The site offers eleven full-screen solid colors, from white and black to red, green, blue and gray, plus a custom color option where you enter any hex value. Its diagnostics section groups more than twenty tools by category, covering mobile sensors, camera and video, audio, mouse and keyboard, PC specs, browser details and connectivity checks.

According to the site, everything runs locally in the browser using standard web technologies, and camera, microphone and sensor tools ask for permission before they start. No account or signup is needed to use the tools.