Rollup has a more complex and flexible configuration system. It provides extensive options and plugins to customize the bundling process according to specific project requirements. WMR, on the other hand, aims to provide a zero-config experience, making it easier to get started without the need for extensive configuration.
Rollup is known for its excellent performance and is optimized for producing small, efficient bundles. It uses tree-shaking and other optimization techniques to eliminate dead code and reduce bundle size. WMR also focuses on performance and aims to provide fast development builds, but it may not be as optimized for production builds as Rollup.
Rollup has a mature ecosystem and extensive documentation, making it easier for developers to find resources and get help when needed. It has good integration with popular tools and frameworks like Babel and TypeScript. WMR, being a newer tool, may have a smaller community and fewer resources available, but it aims to provide a simple and intuitive developer experience.
Rollup provides a wide range of features and supports various module formats, including ES modules and CommonJS. It also has support for code splitting, dynamic imports, and plugins for handling CSS, images, and other assets. WMR focuses on simplicity and aims to provide a streamlined development experience, so it may have fewer advanced features compared to Rollup.
Rollup is well-suited for building libraries and packages that need to be published and consumed by other projects. It is also a good choice for projects that require fine-grained control over the bundling process and have specific optimization needs. WMR, on the other hand, is more suitable for small to medium-sized projects, prototypes, and quick development setups where simplicity and ease of use are prioritized.