vite-plugin-rebundle

A Vite plugin that guarantees one standalone file per entry point. Each entry is bundled into a single file with no code-splitting or dynamic imports.

Why?

There are cases when you need bundles without dynamic imports. Vite doesn't provide such an option when building with multiple entries. vite-plugin-rebundle solves this issue by rebundling Vite’s output with rolldown to enforce single-file output. This plugin runs only during vite build, and it does not affect the Vite dev server.

Installation

npm install -D vite-plugin-rebundle

Usage

import { defineConfig } from 'vite'
import { rebundle } from 'vite-plugin-rebundle'

export default defineConfig({
  plugins: [rebundle()],
  build: {
    rollupOptions: {
      input: {
        bundle1: 'src/bundle1.js',
        bundle2: 'src/bundle2.js',
      },
      output: {
        entryFileNames: '[name].js',
      },
    },
  },
})

Configuration

You can provide global rolldown input and output options as the first argument. Per-entry options can be passed in the second argument:

export default defineConfig({
  plugins: [
    rebundle(
      // Global options applied to all bundles
      {
        input: {...},
        output: {...},
      },
      // Per-entry options, will be deep-merged with global options
      {
        bundle1: {
          input: {...},
          output: {...},
        },
        bundle2: {
          input: {...},
          output: {...},
        },
      },
    ),
  ],
  build: {
    rollupOptions: {
      input: {
        bundle1: 'src/bundle1.js',
        bundle2: 'src/bundle2.js',
      },
      output: {
        entryFileNames: '[name].js',
      },
    },
  },
})

How it works

When you run vite build, Vite normally outputs multiple chunks per entry if code-splitting is needed. vite-plugin-rebundle hooks into the build process and rebundles each entry’s output with rolldown, forcing a single self-contained file per entry.

• Vite still handles the initial build (tree-shaking, asset pipeline, etc.).
• Afterward, each entry is passed through rolldown.
• The final result is one js file per entry with no dynamic imports or shared chunks.

Notes

Source maps are not currently supported. If you pass sourcemap option, it will be ignored. This plugin works with both vite and rolldown-vite.