Windi CSS is a modern utility-first CSS framework that provides classes for designing pages quickly. It offers an intuitive syntax with over 250 built-in utilities for colors, typography, spacing, and more. The framework has a small footprint and can work independently or alongside other CSS frameworks.
JSS has been around for longer and has gained popularity within the React ecosystem. It is widely used and has a large community following. WindiCSS, on the other hand, is relatively newer but has been gaining popularity quickly in the front-end development community, especially among developers using utility-first CSS approaches.
JSS uses a runtime stylesheet generation approach which can result in larger bundle sizes compared to traditional CSS or pre-compiled CSS-in-JS solutions. WindiCSS, being a utility-first CSS framework, generates highly optimized and tree-shakable CSS by analyzing your HTML templates, leading to smaller bundle sizes and improved performance.
Community and Ecosystem
JSS has a mature and established ecosystem within the React community. It has plugins and integrations with popular libraries and frameworks like React, Next.js, and Material-UI. WindiCSS, being relatively newer, has a growing community but may have a smaller ecosystem and fewer integrations compared to JSS.