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Dead Pixel & Monitor Test

Test your screen for dead pixels, stuck pixels, banding, blur, geometry and uniformity with full-screen colors.

Tool inputs stay in your browser · optional AI search sends your query

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How to use it (step by step)

  1. 1Choose a test: solid colors for dead pixels, gradient for banding, grid for sharpness, text for clarity, motion for blur.
  2. 2Go full screen, clean the screen and turn off Night Shift or True Tone.
  3. 3Use Space or → for the next color, H to hide the controls, and Esc to exit.

Words to know

Resolution / pixels
A picture is made of tiny dots called pixels. 1080×1920 means 1,080 dots wide and 1,920 tall.

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