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Dead Pixel Test – Find Stuck or Dead Pixels Fast

Why Run a Dead Pixel Test?

Dead or stuck pixels can appear as tiny black, white, or colored dots on your screen. They often result from manufacturing defects or physical pressure. A dead pixel test helps you identify these imperfections by displaying solid colors across the entire display, making any non-uniform pixel stand out.

How to Use This Fullscreen Tester

  1. Click the fullscreen button to enter immersive mode.
  2. Cycle through solid colors like red, green, blue, black, and white.
  3. Look closely for any pixel that stays black, white, or a different color than the background.
  4. Note the location of any suspicious pixel for further inspection.

What to Look For

Tips for Accurate Results

Perform the test in a dimly lit room to reduce glare. Keep your screen clean and free of smudges. If you find a stuck pixel, try gently massaging the area with a soft cloth—sometimes this can revive it. For persistent issues, contact your monitor's manufacturer.

Why Use White Screen's Dead Pixel Tester?

Our tool runs directly in your browser—no downloads, no plugins. It uses fullscreen solid colors to maximize visibility, and it works on any monitor, laptop, or projector. Whether you're buying a used display or checking your current setup, this free test gives you instant clarity.

Start the test
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What to look for

Important

This visual test cannot calibrate a panel or diagnose every hardware issue. Check warranty terms before attempting any repair.

Frequently asked questions

Which colors should I use to find dead pixels?

Check white, black, red, green, blue, and gray. A defect that remains in the same physical position across multiple colors is easier to distinguish from page content or dust. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

What is the difference between a dead pixel and a stuck pixel?

A dead pixel usually stays dark, while a stuck pixel remains lit in one color. This browser test helps you locate suspicious pixels but cannot determine warranty eligibility. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Does the dead pixel test repair pixels?

No. It is an inspection tool only. Avoid pressure, heat, or unverified repair methods, and consult the display manufacturer's pixel policy before taking action. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Does Dead Pixel Test – Find Stuck or Dead Pixels Fast work on phones and tablets?

Yes. The page adapts to modern phones and tablets as well as laptops, monitors, and televisions. Fullscreen behavior can vary slightly by browser and operating system. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Is Dead Pixel Test – Find Stuck or Dead Pixels Fast free to use?

Yes. whitescreen.lol provides this page without payment or account registration. Standard browser and device limitations still apply. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.