Screen Tearing Test

Reading screen information…DPR —— bit Browser report

Tracking continuity in moving patterns

Stripes, blocks and checkerboards create edges that are easy to follow across the screen. Use them to inspect visible discontinuities while remembering that the browser controls its own presentation path.

Look at moving edges

Choose a pattern and follow an edge as it travels. Record whether a break, jump or uneven movement stays visible across several passes. Compare more than one speed so a one-off timing disturbance is not mistaken for a persistent display problem.

V-Sync and VRR

Browser animation does not expose the complete synchronization state of the operating system, graphics driver and display. A smooth-looking browser pattern cannot certify that G-Sync, FreeSync or another VRR mode is active. Check those settings in the relevant system or driver controls.

Compare the actual application

If the problem occurs in a game, compare that game under the same display and connection settings. An application's rendering and presentation path may behave differently from a browser. Keep the browser test as one observation rather than treating it as a complete diagnosis of the graphics pipeline.

How to run the test

This page cannot certify whether VRR is enabled. Check system and application settings.

  1. Confirm output resolution and refresh rate.

  2. Switch motion patterns and look for horizontal misalignment.

  3. Verify further with game and synchronization settings.

Patterns support visual inspection. Quantitative color accuracy, brightness, gamut coverage and response time require appropriate instruments and methods.

Frequently asked questions

Can this website automatically certify my screen?

No. It provides display test patterns and browser information. Screen anomalies that persist at the same position need visual inspection and, when needed, professional assessment.

Can I use a phone, tablet or TV?

Open the patterns and guides for your device. True full screen and touch depend on the browser; an immersive page preview remains available when full screen is unsupported.

Do I need to install software or upload data?

No installation is needed. Patterns, calculations and interactions run locally in your browser; theme preferences stay on your device.

What should I do if I notice a problem?

Rule out dust, reflections and display settings. Repeat under the same conditions, photograph defects that remain in the same screen position and check the device warranty policy.