@linaria/core downloads · last 12 months
Linaria is a zero-runtime CSS-in-JS library designed to provide the developer experience of CSS-in-JS without the runtime overhead. It solves the problem of dynamic styling and component-scoped CSS by extracting styles during the build process, allowing them to be processed and optimized by standard CSS tools.
Linaria's core philosophy centers on leveraging the browser's native CSS capabilities. It aims to make styling in JavaScript feel natural and powerful, enabling developers to write CSS directly within their component files using template literals. This approach targets developers who appreciate the colocation of styles with components but want to avoid the performance implications of runtime style injection.
The primary API surface involves tagged template literals, such as `css` from `@linaria/core`, which allow developers to write CSS directly in JavaScript. These template literals are then processed by Linaria's build-time Babel plugin or Webpack loader. The library also supports static class names and dynamic values, enabling complex styling logic without impacting runtime performance.
Linaria integrates seamlessly into modern JavaScript build workflows. It's commonly used with frameworks like React and Next.js, and works with bundlers such as Webpack and Vite through its dedicated loaders and plugins. This build-time extraction means styles are treated as static assets, benefiting from code splitting and server-side rendering capabilities.
With a reported bundle size of 352 B (gzip), Linaria offers exceptional performance by eliminating runtime overhead. The build-time extraction approach ensures that only necessary CSS is generated and shipped to the browser. Its maturity is reflected in its active development and widespread adoption within the React ecosystem, indicated by 12.3K GitHub stars.
- When you want to colocate CSS styles with your React components using tagged template literals.
- When optimizing for runtime performance by extracting all styles to static CSS files during the build process.
- When integrating with server-side rendering frameworks that benefit from pre-rendered static styles.
- When using build tools like Webpack or Vite, leveraging Linaria's specific loaders and plugins.
- When you prefer JavaScript template literals for writing CSS to maintain type safety and programmatic control.
- When aiming for minimal JavaScript bundle size by ensuring no CSS-in-JS runtime is shipped to the client.
- If you require immediate style reflection for dynamically changing values without a build step, consider solutions with a runtime component.
- If your styling needs are extremely simple and can be adequately handled by global CSS or standard CSS modules without JavaScript integration.
- If you are working in an environment with a very restrictive build process that cannot accommodate custom Babel plugins or Webpack loaders.
- If you prioritize runtime flexibility over build-time optimization and are comfortable with the performance trade-offs of runtime CSS-in-JS solutions.
- If the project requires frequent, real-time style adjustments driven by user interaction without a page reload or re-build.
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