Tool
Development tool
Press ESC or click Exit to stop the test
How to Test for Dead Pixels
1. Start the Test
Click "Start Test" to enter fullscreen mode.
2. Check Each Color
Look carefully at each solid color for any pixels that don't match.
3. Look for Issues
- Dead Pixel: Always black, regardless of color
- Stuck Pixel: Always shows the same color
- Hot Pixel: Always white or very bright
4. Navigation
Use arrow keys, click colors, or use buttons to change colors. Press ESC to exit.