GuidesNovember 20, 20258 min read
How to Fix a Stuck Pixel on Your Monitor
Found a bright dot on screen? Use our free Screen Test to locate stuck pixels, try safe fixes, and know when to claim warranty.
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Dead Pixel Test
The professional tool to check your screen for dead pixels, backlight bleed, and uniformity.
Left click/Space to switch · ESC to exit
Supports Shortcuts (1-0)
Mobile Friendly
Precise Control
Directly select colors via the bottom bar instead of cycling through them blindly.
Pro Grayscale
Specialized 50% and Dark Gray patterns to test screen uniformity and backlight bleed.
Speed Testing
Use keyboard shortcuts (1-0) to instantly switch colors for rapid validation.
100% Safe
No software installation required. Browser-based testing works on any OS.
Dead Pixel Test FAQ
Quick answers to the most common questions about dead pixels, stuck pixels, burn-in, and warranties.
How do I tell a dead pixel from a stuck pixel?
A dead pixel is a black dot on white backgrounds; a stuck pixel shows a bright color on dark backgrounds. Use the solid color modes here to compare.
Can a dead pixel be fixed?
True dead pixels are usually permanent. Stuck pixels can sometimes recover with flashing or gentle pressure.
Do dead pixels spread?
No, they are typically isolated hardware failures. A cluster appearing over time points to a failing panel.
Is one dead pixel acceptable under warranty?
Many consumer panels follow ISO 13406-2 Class II, which tolerates a few defects. Use the retailer return window if one pixel bothers you.
How do I test for OLED burn-in vs. dead pixels?
Burn-in appears as faint shadows on gray/dark red; dead/stuck pixels are sharp dots best seen on white/black. Cycle those modes here.
Is the pixel fixer safe to watch?
Flashing is safe for the monitor but can trigger photosensitive epilepsy. Start the fixer, look away or cover the screen, and let it run.
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