Refresh Rate Test

Estimate display refresh rate and frame pacing through browser animation timing.

Refresh Rate Test helps monitor, laptop screen, TV, and display users checking visual defects and panel behavior. It focuses on pixel defects, brightness uniformity, color and contrast visibility, motion and gradient artifacts and runs directly in the browser.

What this page checks

pixel defects
brightness uniformity
color and contrast visibility
motion and gradient artifacts
Refresh Rate Test result interpretation

How to use Refresh Rate Test

Open Refresh Rate Test on the same browser and device you want to diagnose.
Display pages do not need device permissions, but full-screen mode helps with careful inspection.
Run the visible display test controls and watch the live result area update before judging the hardware.
Repeat the test once or twice, then compare related InputLab tools if the display behavior looks inconsistent.

How to read the result

Refresh Rate Test is most useful when you read the result as a practical browser diagnostic. Room lighting, viewing angle, display brightness, scaling, and browser full-screen behavior can change what you see. A repeated pattern across multiple runs is more meaningful than one isolated spike, missed event, or visual artifact.

Privacy and permissions

Display pages do not need device permissions, but full-screen mode helps with careful inspection. Tests are designed to run locally in the browser, with permissions controlled by the browser.