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Monitor Tool

Screen Ghosting Tester

Detect ghosting and slow pixel response time on your monitor. A trail behind the moving bar means your display has ghosting.

SpeedMedium

How to use

  • 1.The bar starts moving automatically. Watch closely behind it.
  • 2.If you see a faint trail or shadow following the bar, your monitor has ghosting.
  • 3.Use Fullscreen for the most accurate result.
  • 4.Increase speed to stress-test your monitor's pixel response time.
  • 5.Try different backgrounds, since ghosting is more visible on some colors.

What causes ghosting?

Slow pixel response time: pixels take too long to change color, leaving a trail. Common on VA panels.
Overdrive set too high: inverse ghosting appears as a bright halo ahead of moving objects.
Low refresh rate: 60 Hz screens show more ghosting than 144 Hz or higher at the same speed.