Webpack - Dev Server


The WebPack dev is a little Node.js Express web server that implements live-reloading



In the root directory (where your WebPack - webpack.config.js is), run:


This will start a server, listening on connections from localhost on port 8080.

As Node Script

As npm script

   // ............
  "scripts": {
    "start": "webpack-dev-server"
  "dependencies": {
    "d3": "^4.10.2"
  "devDependencies": {
    "webpack": "^3.6.0",
    "webpack-dev-server": "^2.8.2"


npm start


const path = require('path');

module.exports = {
    devServer: {
        contentBase: path.join(__dirname, "dist"),
        compress: true,
        port: 9000

where a web server will be started:

  • in the dist directory
  • on the port 9000
  • with compression on.

Documentation / Reference

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