Overview
CSS Class Finder is a powerful Edge extension for developers, designers, and QA engineers. Effortlessly scan any web page—including all iframes—for the presence of specific CSS classes or design system components. Upload or link a JSON list of class names, and instantly see which are present, how many times they appear, and where they are used.
Key Features:
Upload or link a JSON file with your target CSS classes or component names.
Scan the current page and all iframes for matches.
Instantly see a color-coded, accessible table of results, including the number of instances for each class/component.
Visually annotate matched elements with high-contrast outlines and badges for easy auditing.
Download a sample JSON to get started quickly.
Modern, accessible UI with support for 100+ annotation colors.
Works with any design system.
Perfect for:
Design system audits
Accessibility and QA reviews
Rapid prototyping and debugging
Note: To clear annotations, simply refresh the page.
Take control of your CSS audits and component usage reviews—install CSS Class Finder today!
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