Client-side engine
Dead pixel test
Fullscreen color sweeps to inspect your panel. Free. No upload.
Fullscreen color sweeps. Use arrow keys or Space to change color, Escape to exit.
- Fullscreen colors
- Browser chrome may remain until fullscreen is allowed
Workflow
How to use Dead pixel test
Three steps. This runs in your browser. What you type is not uploaded by this tool.
- 01
Start the test.
Start the test.
- 02
Allow fullscreen.
Allow fullscreen.
- 03
Cycle colors and inspect the panel.
Cycle colors and inspect the panel.
Direct answers
Essential questions answered
Short answers for search and answer engines. Same facts as the FAQ.
How do I run a dead pixel test?
Start the test, allow fullscreen, and cycle colors while you inspect the panel.
Can this fix a stuck pixel?
No. It only helps you see them.
Is anything uploaded?
No.
Practical applications
Good for everyday workflows
Check a new monitor
Fill the screen with solid colors to find dead or stuck pixels.
Find a stuck pixel
Fill the screen with solid colors to find dead or stuck pixels.
Inspect a laptop panel
Fill the screen with solid colors to find dead or stuck pixels.
Got questions?
Frequently asked questions
Is the dead pixel test free?
Yes on ToolStudio.
What if fullscreen is blocked?
The overlay still covers the page; fullscreen is optional.
Is anything uploaded?
No.
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