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Monitor Ghosting Test

Follow a moving object and inspect trailing images with your eyes or a camera.

Free to useNo downloadNo sign-up

Monitor Ghosting Test · At a glance

Quick answer: Follow a moving object and inspect trailing images with your eyes or a camera. Trails and bright inverse trails are visual observations.

Monitor Ghosting Test

The test loads when you open it. Device access is requested only after you choose to start.

Detailed guide

How to use this tool

  1. Follow the moving object with your eyes.
  2. Compare the same speed with different monitor overdrive settings, changing one control at a time.

Output

Moving pattern for visual comparison

Input

Eyes or a suitably configured camera

Browser requirement

Visible browser animation

Processing

Runs on your device; no tool-result upload

How it works and what the result means

Trailing images are observed visually. The page cannot measure gray-to-gray panel response time or force the display into variable-refresh-rate mode.

Reading the result

Trails and bright inverse trails are visual observations. The animation cannot calculate physical gray-to-gray response time.

What to check next

Use a stable refresh mode. Camera exposure and pursuit technique can introduce artifacts into recorded comparisons.

VRR observation varies browser workload on a dark background. Whether VRR activates depends on operating-system, driver, browser and monitor settings.

Frequently asked questions

Can the page choose the best overdrive setting?

It provides a repeatable moving pattern. You judge the balance between ordinary trailing and overshoot on your own panel and refresh mode.

How do I start the Monitor Ghosting Test?

Start the moving pattern and follow it with your eyes. Compare speeds or record with a camera. Stop the animation when finished.

Does this tool require a download or an account?

No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.

Why can two attempts give different results?

Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.