@utoo/pack

High-performance bundler core for the Utoo toolchain, powered by Turbopack .

Key Features

• Extreme Performance - Core bundling logic implemented in Rust via NAPI-RS
• Turbopack Powered - Built on top of the same engine that powers Next.js Turbopack
• Webpack Compatibility - Support for consuming webpack.config.js to simplify migration
• Modern Web Support - Native support for TypeScript, JSX, CSS Modules, Less, Sass, and more
• Extensible Architecture - Support for custom loaders, plugins, and flexible configuration
• Fast HMR - Instant updates during development with optimized Hot Module Replacement

Installation

ut install @utoo/pack --save-dev

Quick Start

const { build } = require('@utoo/pack');
 
async function runBuild() {
  await build({
    config: {
      entry: [
        {
          import: "./src/index.ts",
          html: {
            template: "./index.html"
          }
        }
      ],
      output: {
        path: "./dist",
        filename: "[name].[contenthash:8].js",
        chunkFilename: "[name].[contenthash:8].js",
        clean: true
      },
      sourceMaps: true
    }
  });
}
 
runBuild();

const { dev } = require('@utoo/pack');
 
async function startDev() {
  const server = await dev({
    config: {
      entry: [
        {
          import: "./src/index.ts",
          html: {
            template: "./index.html"
          }
        }
      ],
      output: {
        path: "./dist",
        filename: "[name].[contenthash:8].js",
        chunkFilename: "[name].[contenthash:8].js",
        clean: true
      },
      sourceMaps: true
    }
  });
}
 
startDev();

Webpack Compatibility

@utoo/pack provides a partial compatibility layer for Webpack, allowing you to reuse existing configurations.

const { build } = require('@utoo/pack');
const webpackConfig = require('./webpack.config.js');
 
async function run() {
  await build({ ...webpackConfig, webpackMode: true });
}
 
run();

Supported Features

@utoo/pack aims for high compatibility with the Webpack ecosystem while providing superior performance.

Configuration

The bundler can be configured via utoopack.json or through the programmatic API.

See Configuration for full details.