The professional tool to check and fix your screen for dead or stuck pixels, backlight bleed, and uniformity.
Directly select colors via the bottom bar instead of cycling through them blindly.
Specialized 50% and Dark Gray patterns to test screen uniformity and backlight bleed.
Includes a high-frequency RGB flashing tool to unstuck frozen sub-pixels and rejuvenate your screen.
No software installation required. Browser-based testing works on any OS.
Quick answers to the most common questions about testing and fixing dead or stuck pixels, plus warranty basics.
Dead pixels, stuck pixels, burn-in checks, and monitor buying/testing tips.
Bright dot on your display? Learn the difference between dead vs. stuck pixels and use our free Stuck Pixel Fixer to flash them back to life without leaving your browser.
Found a bright dot on screen? Use our free Screen Test to locate stuck pixels, try safe fixes, and know when to claim warranty.
Corners glowing or bright patches? Use our Screen Test to tell IPS glow from backlight bleed and decide if you should RMA.
Black dots or bright dots? Use our Screen Test to spot dead vs stuck pixels, pick the right fix, or decide when to RMA.
New monitor? Run this QC checklist with our Screen Test to find dead pixels, bleed, and defects before your return window closes.
Everything you need to know about OLED screen retention and burn-in. Learn prevention strategies, testing methods, and when to worry.