Stitches

Emotion is a flexible and performant library designed for writing CSS styles with JavaScript. It provides a powerful and predictable style composition in addition to a great developer experience with features such as source maps, labels, and testing utilities. Emotion allows for writing styles using string or object notation and supports both styled components and the css prop for styling elements. Its framework agnostic nature means it can be used with various frameworks or even without one, making it a versatile choice for styling modern web applications.

JSS (JavaScript Style Sheets) is an authoring tool for CSS that allows developers to use JavaScript to describe styles in a declarative, conflict-free, and reusable way. It provides a more powerful abstraction over CSS, enabling the use of JavaScript's full expressiveness in style definitions. JSS supports features like dynamic styling, theming, critical CSS extraction, and vendor prefixing. By bringing the power of JavaScript to CSS authoring, JSS offers increased maintainability and flexibility in styling complex applications, particularly useful in component-based architectures.

Styled-components is a popular CSS-in-JS styling framework that utilizes tagged template literals in JavaScript to style React components. This library allows developers to write actual CSS code to style components, promoting a component-centric styling approach. It automatically generates unique class names, eliminating the need to manually manage class names and selectors. Styled-components offers features like dynamic styling based on props, theming support, and automatic vendor prefixing. This approach results in more maintainable and scalable code by keeping the styles tightly coupled with their components.