Bunchee: Zero-config JavaScript/TypeScript Bundler

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library 6.10.0 ·javascript
verified May 27, 2026

Bunchee is a zero-configuration JavaScript/TypeScript bundler designed specifically for libraries and packages. It streamlines the build process by leveraging the `exports` field within `package.json` as the single source of truth for entry points and output formats. Powered by Rollup for bundling and SWC for fast transpilation, Bunchee automatically aligns entry file conventions from `src/` directories with declared exports, supporting both CommonJS and ESModules. The current stable version is 6.10.0, with frequent patch and minor releases indicating active development. Its key differentiators include its zero-config approach and deep integration with `package.json#exports` for intuitive and efficient package builds, minimizing boilerplate configuration commonly found in other bundlers.

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