Ghosting test

Run a moving-pattern test on your own screen to look for motion blur or ghosting.

Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.

Pattern speed (pixels per second)

How to use this tool

Enter your values in the fields above.
Press Generate to see the result.
Use Load sample to try the worked example, Copy result to copy it, or Clear to start again.

At 400 pixels per second, the pattern steps across the screen and any visible trail behind its edges suggests ghosting.

This is a visual check on your own screen only. It does not measure your display scientifically and results depend on your eyes, panel and settings.

What am I looking for?

A sharp moving edge. A faint trail or smear behind the edge suggests ghosting on that display.

Does it test anything else?

No. It only shows a moving pattern on your own screen for you to look at.

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