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CSS Scan Pro makes it radically easy to get the looks of your favorite websites. Hover over any element, and get its CSS, font, dimensions, animations, and selector, instantly.

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Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.

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A Chrome extension to show multiple screens in one view.

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Convert videos to high-quality GIFs.