📦

bunchee

Zero-config bundler for JS/TS packages — use your package.json as the config.

➜~/project$npm install --save-dev bunchee typescript

➜~/project$cat package.json

{
  "name": "coffee",
  "type": "module",
  "main": "./dist/index.js",
  "scripts": {
    "build": "bunchee"
  }
}

➜~/project$

Exports  File             Size
.        dist/index.js    5.6 kB

# Why bunchee?

- Zero config - package.json as config

- Auto-generates TypeScript declarations

- Supports ESM, CJS, or dual packages

- Tree-shakeable and monorepo friendly

# Perfect for

- npm packages and component libraries

- Node.js tools, CLI apps, and utilities

- Monorepo workspaces with shared packages

# Learn

## Entry & Convention

Files in src/ folder match export names in package.json:

+--------------------------+---------------------+
| File                     | Export Name         |
+--------------------------+---------------------+
| src/index.ts             | "." (default)       |
| src/lite.ts              | "./lite"            |
| src/react/index.ts       | "./react"           |
+--------------------------+---------------------+

## Directives

Bunchee can manage multiple directives such as "use client", "use server", or "use cache" and automatically split your code into different chunks and preserve the directives properly.