Webpack Config Generator

Configure entry, output, loaders, plugins, and devServer options visually — get a ready-to-use webpack.config.js with the matching install command.

Build Mode

development

production

none

Entry & Output

Entry point

Output path

Output filename

Source Maps

Enable source mapsUses source-map (production)

Loaders

babel-loaderTranspile JS/JSX with @babel/preset-env + @babel/preset-reactts-loaderCompile TypeScript (.ts / .tsx) filescss-loader + style-loaderImport .css files; style-loader injects into DOMsass-loaderCompile .scss / .sass files (requires css-loader)Asset modules (built-in)Handle images and fonts via Webpack 5 asset/resourceurl-loaderInline small assets as base64 data URLs (limit: 8 KB)

Plugins

HtmlWebpackPluginAuto-generate index.html with injected script tagsMiniCssExtractPluginExtract CSS into separate files instead of style-loaderDefinePlugin (NODE_ENV)Inject process.env.NODE_ENV for dead-code eliminationCleanWebpackPluginRemove old build artifacts from output directory before each buildCopyWebpackPluginCopy static assets from public/ to the output directory

Dev Server

Enable webpack-dev-server

Port

Hot module replacement (HMR)Open browser on start

Optimization

Code splittingsplitChunks: all + runtimeChunk: single; separates vendor bundleMinimize outputTerser minification (true in production by default)

Tree shaking is automatic in production mode when you use ES module import/export syntax — no plugin needed.

webpack.config.js

const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const webpack = require('webpack')

module.exports = {
  mode: 'production',

  entry: './src/index.js',

  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].[contenthash].js',
    clean: true,
  },

  devtool: 'source-map',

  module: {
    rules: [
    {
      test: /\.(js|jsx)$/,
      exclude: /node_modules/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: ['@babel/preset-env', '@babel/preset-react'],
        },
      },
    },
    {
      test: /\.css$/,
      use: ['style-loader', 'css-loader'],
    },
    {
      test: /\.(png|jpg|jpeg|gif|svg|webp)$/i,
      type: 'asset/resource',
    },
    {
      test: /\.(woff|woff2|eot|ttf|otf)$/i,
      type: 'asset/resource',
    },
    ],
  },

  resolve: {
    extensions: ['.js', '.jsx', '.json'],
  },

  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
      filename: 'index.html',
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'production'),
    }),
  ],

  optimization: {
    minimize: true,
  },

  devServer: {
    port: 3000,
    hot: true,
    open: false,
    historyApiFallback: true,
    static: {
      directory: path.join(__dirname, 'public'),
    },
    compress: true,
  },
}

Required packages

npm install

npm install --save-dev webpack webpack-cli babel-loader @babel/core @babel/preset-env @babel/preset-react css-loader style-loader html-webpack-plugin webpack-dev-server