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How to use
- 1Open the test, grant permission only when needed, and review the result in your browser.
About
A local UtilNexo tool for a quick check without sending test data to a server.
Dead Pixel Test Online | UtilNexo
Use solid colors to look for pixels that stay dark or fixed.
Cycle black, white, red, green, and blue fullscreen colors and inspect the panel.
The tool does not calculate pixels; it provides uniform patterns for visual inspection.
Example use
Cycle black, white, red, green, and blue fullscreen colors and inspect the panel.
The tool does not calculate pixels; it provides uniform patterns for visual inspection.
Example use
- The tool does not calculate pixels; it provides uniform patterns for visual inspection.
- Cycle black, white, red, green, and blue fullscreen colors and inspect the panel.
Limits and privacy
- Tests run in the browser and do not diagnose physical defects.
- Microphone and webcam require explicit permission; media tracks stop when you stop the test.
- Results vary with browser, system, and room conditions.
How to use
- 1Open the tool and read the guidance.
- 2Grant permission only for audio or video tests.
- 3Use the indicated area and compare results under the same conditions.
Frequently asked questions
Is every unusual dot a dead pixel?
The tool does not calculate pixels; it provides uniform patterns for visual inspection.
Is data uploaded?
No. Processing is local. Microphone and webcam stay in the browser and are stopped when you stop.
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