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DisplayLab Free monitor and dead pixel test for Windows

Free monitor test for Windows. Check dead pixels, uniformity, gradients, gamma and sharpness with fullscreen test patterns.

DisplayLab is a free monitor testing tool for Windows. It shows fullscreen patterns that help you spot dead or stuck pixels, uneven brightness, color banding in gradients, gamma problems and blurry text.

Run it when you buy a new monitor or laptop, check a used screen before paying, or tune a display you work on every day.

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DisplayLab test screen
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Features

  • Run fullscreen monitor test patterns
  • Check for dead or stuck pixels
  • Inspect screen uniformity
  • Spot gradient banding
  • Check gamma balance
  • Review text clarity and sharpness
  • Find color separation issues
  • Test a new monitor after purchase
  • Compare multiple displays
  • Use a lightweight focused Windows testing tool

Privacy

Test patterns are used for local display inspection; privacy details should be verified on the store listing.

Frequently asked questions

How do I check my monitor for dead pixels?

Open DisplayLab and run its fullscreen color patterns, then look for pixels that stay dark, bright or stuck.

What else can DisplayLab test?

Screen uniformity, gradient banding, gamma balance, text clarity and sharpness.

Is DisplayLab free?

Yes, DisplayLab is free.