Tailwind CSS Lookup is a free Chrome add-on designed specifically for Tailwind CSS developers. This tool allows users to inspect Tailwind classes on any webpage element, providing instant visibility into the CSS they generate. The add-on features an inspect mode that enables users to hover over elements to see the associated Tailwind classes. Additionally, it includes a class search functionality, allowing developers to look up any Tailwind utility class and view its CSS output. Users can easily copy classes to their clipboard with a simple click, enhancing workflow efficiency.

The tool also offers a page summary feature that displays all unique Tailwind classes utilized on a page, making it ideal for learning class names, debugging layouts, and reverse-engineering designs. Tailwind CSS Lookup covers the default utilities of Tailwind CSS v3 and ensures user privacy by not collecting any data or transmitting information to external servers, as all processing occurs locally within the browser. It is open source and free of ads, making it a valuable resource for developers.