Dead Pixel Test Pro, Without the Download

Why it surfaced

This is a notably careful take on a tiny utility: it distinguishes dead pixels from stuck subpixels, dust, reflections, and larger panel effects instead of pretending to offer a certified diagnosis. The test runs locally in the browser and explicitly says it does not capture, upload, or analyze the screen.

A browser-based screen checker that cycles through solid colors, grayscale fields, custom HEX values, and fullscreen modes to help identify dead or stuck pixels.