Screen Issues is a free, browser-based screen test tool. Run full-screen color tests to spot dead or stuck pixels, check for lines, backlight bleed, color uniformity problems and flickering on monitors, laptops, TVs and phones. No download or signup required, and it comes with step-by-step diagnosis guides explaining what each defect means and how to fix it. It offers multiple test modes for quick checks on modern displays, helping anyone understand visible screen problems before deciding on repair or replacement.
Screen Issues
Free screen testing and dead-pixel diagnosis guides
