rollup-plugin-bundle-esm

A Rollup plugin that automatically bundles only ESM-only dependencies while leaving CommonJS-compatible packages external, optimizing bundle size and reducing edge cases. Current stable version is 0.1.1 (released 2022, no recent updates). Key differentiator: solves the dual-packaging problem for environments without ESM support (e.g., Electron) by specifically targeting ESM packages for inlining, unlike general-purpose resolve plugins that bundle everything. Compatible with Rollup 3+; requires @rollup/plugin-node-resolve and @rollup/plugin-commonjs as companion plugins.