smartbundle

SmartBundle - zero-config bundler for npm packages

How to use

• Create package.json like

{
  "name": "my-package",
  "version": "1.0.0",
  "private": true, // required for avoiding the accidental publishing
  "type": "module",
  "exports": {
    ".": "./src/index.ts" // entrypoint list for building the package
  }
}

• Run

npx smartbundle

• Go to the dist folder and publish your package to the npm registry. The total package.json will be generated automatically.

Supported targets

• Bun 1+
• Node ^18.0.0, ^20.0.0, ^22.0.0, ^23.0.0
• Webpack ^4.47.0, ^5.95.0
• Rspack ^1.0.0

Features

• generate the most compatible package.json for any bundlers(webpack, rollup, esbuild, vite, etc) or runtimes(node, bun, deno, etc)
• validate package.json for common errors
• do not require any configuration files like tsconfig.json, eslintrc.json, etc
• but if you need to use them, you can use them by creating them manually like for the parcel bundler
• generate esm and cjs entrypoints for the package
• generate typescript typings for the package
• require only minimal package.json fields

Known issues:

• does not generate fully compatible cjs typings for the entrypoints (#9)
• supports only type: module right now. It will be fixed before v1.0.0 release.

Motivation

Almost every npm package have the same build pipeline: build code, generate typescript typings, validate package.json, generate correct package.json for the bundlers and runtimes, blah-blah, etc.

I really like the microbundle project, but it requires a lot of extra configuration and is not zero-config. And more, the project is not maintained and does not support a lot of modern js features.

So I decided to create my own project to automate the build pipeline and save the developer's time for building packages.