**Want to skip to the end?** Download the source code and working demo for this guide from the [twbs/examples repository](https://github.com/twbs/examples/tree/main/webpack). You can also [open the example in StackBlitz](https://stackblitz.com/github/twbs/examples/tree/main/webpack?file=index.html) for live editing.
We're building a Webpack project with Bootstrap from scratch, so there are some prerequisites and up front steps before we can really get started. This guide requires you to have Node.js installed and some familiarity with the terminal.
1.**Create a project folder and setup npm.** We'll create the `my-project` folder and initialize npm with the `-y` argument to avoid it asking us all the interactive questions.
2.**Install Webpack.** Next we need to install our Webpack development dependencies: `webpack` for the core of Webpack, `webpack-cli` so we can run Webpack commands from the terminal, and `webpack-dev-server` so we can run a local development server. We use `--save-dev` to signal that these dependencies are only for development use and not for production.
3.**Install Bootstrap.** Now we can install Bootstrap. We'll also install Popper since our dropdowns, popovers, and tooltips depend on it for their positioning. If you don't plan on using those components, you can omit Popper here.
4.**Install additional dependencies.** In addition to Webpack and Bootstrap, we need a few more dependencies to properly import and bundle Bootstrap's CSS and JS with Webpack. These include Sass, some loaders, and Autoprefixer.
We've already created the `my-project` folder and initialized npm. Now we'll also create our `src` and `dist` folders to round out the project structure. Run the following from `my-project`, or manually create the folder and file structure shown below.
At this point, everything is in the right place, but Webpack won't work because we haven't filled in our `webpack.config.js` yet.
## Configure Webpack
With dependencies installed and our project folder ready for us to start coding, we can now configure Webpack and run our project locally.
1.**Open `webpack.config.js` in your editor.** Since it's blank, we'll need to add some boilerplate config to it so we can start our server. This part of the config tells Webpack were to look for our project's JavaScript, where to output the compiled code to (`dist`), and how the development server should behave (pulling from the `dist` folder with hot reload).
```js
const path = require('path')
module.exports = {
entry: './src/js/main.js',
output: {
filename: 'main.js',
path: path.resolve(__dirname, 'dist')
},
devServer: {
static: path.resolve(__dirname, 'dist'),
port: 8080,
hot: true
}
}
```
2.**Next we create our `dist/index.html`.** This is the HTML page Webpack will load in the browser to utilize the bundled CSS and JS we'll add to it in later steps. Before we can do that, we have to give it something to render and include the `output` JS from the previous step.
We're including a little bit of Bootstrap styling here with the `div class="container"` and `<button>` so that we see when Bootstrap's CSS is loaded by Webpack.
3.**Now we need an npm script to run Webpack.** Open `package.json` and add the `start` script shown below (you should already have the test script). We'll use this script to start our local Webpack dev server.
```json
{
// ...
"scripts": {
"start": "webpack serve --mode development",
"test": "echo \"Error: no test specified\" && exit 1"
},
// ...
}
```
4.**And finally, we can start Webpack.** From the `my-project` folder in your terminal, run that newly added npm script:
```sh
npm start
```
<imgclass="img-fluid"src="/docs/{{< param docs_version >}}/assets/img/guides/webpack-dev-server.png"alt="Webpack dev server running">
In the next and final section to this guide, we'll setup the Webpack loaders and import all of Bootstrap's CSS and JavaScript.
## Import Bootstrap
Importing Bootstrap into Webpack requires the loaders we installed in the first section. We've installed them with npm, but now Webpack needs to be configured to use them.
1.**Setup the loaders in `webpack.config.js`.** Your configuration file is now complete and should match the snippet below. The only new part here is the `module` section.
```js
const path = require('path')
module.exports = {
entry: './src/js/main.js',
output: {
filename: 'main.js',
path: path.resolve(__dirname, 'dist')
},
devServer: {
static: path.resolve(__dirname, 'dist'),
port: 8080,
hot: true
},
module: {
rules: [
{
test: /\.(scss)$/,
use: [
{
loader: 'style-loader'
},
{
loader: 'css-loader'
},
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: () => [
require('autoprefixer')
]
}
}
},
{
loader: 'sass-loader'
}
]
}
]
}
}
```
Here's a recap of why we need all these loaders. `style-loader` injects the CSS into a `<style>` element in the `<head>` of the HTML page, `css-loader` helps with using `@import` and `url()`, `postcss-loader` is required for Autoprefixer, and `sass-loader` allows us to use Sass.
2.**Now, let's import Bootstrap's CSS.** Add the following to `src/scss/styles.scss` to import all of Bootstrap's source Sass.
```scss
// Import all of Bootstrap's CSS
@import "~bootstrap/scss/bootstrap";
```
*You can also import our stylesheets individually if you want. [Read our Sass import docs]({{< docsref "/customize/sass#importing" >}}) for details.*
3.**Next we load the CSS and import Bootstrap's JavaScript.** Add the following to `src/js/main.js` to load the CSS and import all of Bootstrap's JS. Popper will be imported automatically through Bootstrap.
<!-- eslint-skip -->
```js
// Import our custom CSS
import '../scss/styles.scss'
// Import all of Bootstrap's JS
import * as bootstrap from 'bootstrap'
```
You can also import JavaScript plugins individually as needed to keep bundle sizes down:
*[Read our JavaScript docs]({{< docsref "/getting-started/javascript/" >}}) for more information on how to use Bootstrap's plugins.*
4.**And you're done! 🎉** With Bootstrap's source Sass and JS fully loaded, your local development server should now look like this.
<imgclass="img-fluid"src="/docs/{{< param docs_version >}}/assets/img/guides/webpack-dev-server-bootstrap.png"alt="Webpack dev server running with Bootstrap">
Now you can start adding any Bootstrap components you want to use. Be sure to [checkout the complete Webpack example project](https://github.com/twbs/examples/tree/main/webpack) for how to include additional custom Sass and optimize your build by importing only the parts of Bootstrap's CSS and JS that you need.
