Head-to-Head: Primer CSS vs Stitches React Analysis


v21.2.0(17 days ago)

This package is actively maintained.The package doesn't have any types definitionsNumber of direct dependencies: 2Monthly npm downloads

@primer/css is a comprehensive CSS framework developed by GitHub's design system, Primer. It provides a set of reusable and customizable CSS components and utilities that can be used to build modern and responsive web interfaces. The framework follows a modular approach, allowing you to include only the components you need, resulting in optimized and lightweight CSS for your project.


Tags: cssframeworkdesign-systemresponsivemodular


v1.2.8(almost 2 years ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 0Monthly npm downloads

@stitches/react is a CSS-in-JS library that provides a seamless way to write and manage styles in React applications. It offers a powerful and intuitive API for defining styles using JavaScript, allowing you to leverage the full power of JavaScript while writing CSS. With @stitches/react, you can easily create reusable style components, apply dynamic styles based on props or state, and use responsive styles for different screen sizes.


Tags: javascriptcss-in-jsreactstylingperformance



Both @primer/css and @stitches/react are popular npm packages within their respective domains. @primer/css is a CSS utility library developed by GitHub and is widely used in the GitHub ecosystem. @stitches/react is a CSS-in-JS library that has gained popularity for its performance and developer experience.


@primer/css focuses on providing a set of utility classes and CSS components that can be used to build consistent and responsive UIs. It is primarily focused on styling and does not provide any JavaScript functionality. @stitches/react, on the other hand, is a complete CSS-in-JS solution that allows you to write CSS styles directly in your JavaScript code.

Developer Experience

@primer/css provides a set of pre-defined utility classes and CSS components that can be easily used in your project. It follows a more traditional CSS approach and does not require any additional tooling or build setup. @stitches/react, on the other hand, provides a more modern and ergonomic API for writing CSS-in-JS styles. It offers features like theming, responsive styles, and dynamic styles, making it more powerful but also requiring a bit more setup and configuration.


In terms of performance, @primer/css is optimized for production use and provides a minimal and efficient CSS output. It leverages CSS variables and utility classes to generate optimized styles. @stitches/react also focuses on performance and uses a runtime CSS-in-JS solution that generates minimal and optimized CSS at runtime. Both packages aim to provide performant styling solutions.


@primer/css can be easily integrated into any project, regardless of the framework or library being used. It provides a set of CSS classes that can be applied to HTML elements. @stitches/react, on the other hand, is specifically designed for React applications and provides React components and hooks for styling. It integrates seamlessly with React and allows for a more component-centric approach to styling.

Community and Support

Both @primer/css and @stitches/react have active communities and are well-maintained. @primer/css is developed and maintained by GitHub, which ensures its ongoing support and updates. @stitches/react is also actively maintained and has a growing community of users. Both packages have good documentation and provide support channels for developers.