How to use the dead pixel test
- 1
Clean the screen so dust is not mistaken for a pixel issue.
- 2
Enter fullscreen and cycle through every color.
- 3
Inspect the panel and save your visual confirmation.
Dead Pixel Test
Inspect your display against clean full-screen colors to locate possible dead or stuck pixels.
✓Runs locally in your browser — no account or uploads required.
Interactive browser testResults stay in this session
White
Did you notice any dead or stuck pixels?
This is a user-performed visual inspection. The browser cannot inspect physical pixels automatically.
Dead pixels, stuck pixels, and solid colors
A dead pixel usually remains dark, while a stuck subpixel may remain red, green, blue, or another fixed color. Full-screen solid colors make these defects easier for you to notice across the panel.
A website cannot inspect physical pixels automatically. Clean the screen first, review every color, and treat the saved result as your visual confirmation rather than automated diagnosis.
Troubleshooting
A dot appears on one color
Clean the surface and repeat every color to distinguish dust from a pixel issue.
Fullscreen is unavailable
Restricted browsers may block fullscreen; use the expanded panel instead.
Mobile controls remain
Rotating the device may provide more usable screen area.
Dead Pixel Test FAQ
Can a webpage repair a dead pixel?
No. This test helps locate possible defects but cannot repair hardware.
What is a stuck pixel?
A stuck pixel may remain one color, while a dead pixel usually stays dark.
Build a complete report
Run Full Device Check →Test the rest of your device
Continue through all 13 core checks in one guided session and download a private PDF report.