Dead Pixel Tester & Monitor Health Check

How to Use This Dead Pixel Test

Testing your monitor for pixel defects is simple and requires no software installation:

1. Clean your screen: Before starting, ensure your screen is free of dust and smudges to avoid false positives.
2. Enter Full Screen: Click any of the color buttons (White, Red, Green, etc.) to fill your entire screen with that color.
3. Inspect Carefully: Look for any tiny dots that are not the correct color.
   • Dead Pixels: Usually appear as black dots on a white background. They are pixels that do not light up.
   • Stuck Pixels: Appear as a bright red, green, or blue dot on a black background. These are pixels stuck permanently "on".
4. Auto Cycle: Use the "Auto Cycle" feature to automatically switch through all colors, helping you spot anomalies quickly.
5. Exit: Press the ESC key on your keyboard to exit the test mode at any time.

Dead Pixel Checker FAQs