About This Launch
Free Online Screen Test Tool - Instantly diagnose dead pixels, lines, color issues, and flickering on any monitor, laptop or phone display. Multiple test modes, runs in the browser, no download needed.
Why I Built This
I bought a monitor with a stuck pixel and could not find a simple, clean, free way to test it, so I built a browser-based screen testing utility with clear diagnosis guides.
Launch Details
CategoryProductivity
StageLive
ListedOctober 5, 2026