Screen Dead Pixel Test
Full-screen solid colors to check for dead or stuck pixels.
Find dead pixels, stuck pixels, or backlight bleed by displaying solid colors in full screen. Supports mobile, tablet, and desktop.
Easy to Use
Click, scroll, or use arrow keys to switch colors. Press ESC or double click to exit.
Full Coverage
Includes black, white, red, green, blue and more standard test colors.
Pixel Types
About This Tool
The Screen Dead Pixel Test tool helps you visually identify defects on your screen panel by cycling through different solid color backgrounds (Black, White, Red, Green, Blue, etc.) in full-screen mode. Use black background to check for stuck (bright) pixels, white background for dead (dark) pixels, and RGB backgrounds for sub-pixel defects. This tool runs entirely in your browser without any software installation, making it perfect for testing new monitors or routine screen maintenance.
Features
- 📺 Full Screen: Immersive mode with auto-hide UI and Screen Wake Lock
- 🎨 Color Palette: Standard test colors (RGBW...) with quick jump palette
- 🖱️ Rich Interaction: Support click, scroll, shortcuts, and touch gestures
- 📱 Touch Ready: Swipe gestures optimized for mobile and tablet users
- 🛡️ Privacy First: 100% local processing, no installation required