CSS class finder

by solomonoabey · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Upload or download a list of CSS classes and scan the current page for their presence.

Users

+21 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#102K

#85K among extensions

Version

1.0.5

updated 23 May 2025

Users

monthly, 17 months

Latest, 16 Oct 2026: 59 usersMove the mouse over the chart for any month

Ratings count

monthly, 17 months

Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About CSS class finder

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!