CLS Visualizer is a developer tools chrome extension. it's a free extension , it has 5,000+ active users since released its first version, it earns an average rating of 4.62 from 8 rated user, last update is 733 days ago.
This plugin will highlight and visualize the Cumulative Layout Shift. Cumulative Layout Shift (CLS) is an important, user-centric metric for measuring visual stability because it helps quantify how often users experience unexpected layout shifts—a low CLS helps ensure that the page is delightful. Unfortunately the CLS is a pain to debug without visualisation
You could download the latest version crx file or older version files and install it.
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Thank you for this tool!
Great little tool!