rollup-plugin-babel

Rollup plugin for seamless integration with Babel. Version 3.0.2 is the latest stable release. It allows transpiling ES6/7 code with Babel while preserving Rollup's tree-shaking and module resolution, avoiding intermediate files and sourcemap issues. Unlike running Babel before Rollup, this plugin handles transpilation per-file, preventing Babel helper duplication. Requires babel-core 6 or 7 as a peer dependency. Key differentiator: integrates directly into Rollup's plugin system, supporting .babelrc configuration and options like include/exclude patterns. Deprecated in favor of @rollup/plugin-babel as of Rollup 1.0.