Dead Pixel Test & Screen Issues Checker

Experiencing strange spots or display problems on your screen? Use this free online tool to detect dead pixels, bright spots, backlight bleed, and screen burn-in in seconds.

Run Free Screen Test

What Can You Detect?

Dead pixels (black or unresponsive dots)
Bright spots on LCD screens
Backlight bleeding issues
OLED screen burn-in
Color uniformity problems

How It Works

The tool displays full-screen colors like black, white, red, green, and blue. By carefully observing your screen, you can quickly identify pixel defects or lighting issues.

Why Use This Tool?

100% free and online
No installation required
Works on phones, laptops, and monitors
Instant results

Fix Screen Issues

Some issues like stuck pixels can be fixed using special techniques. Visit our full guide here:

Learn How to Fix Screen Problems