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💥🔥📦👩‍💻 An easy to use, pre configured, hackable webpack setup & development server for WordPress themes and plugins.

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visit our website for documentation and usage - Modern JavaScript tooling for WordPress

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What is

Put simply, is a nodejs based build tool to ease up using modern javascript in WordPress Themes and Plugins. It gives a fine Developer Experience (DX) and a single dependency for all your bundling requirement.

It is a fine-tuned webpack/browser-sync configuration made specifically for WordPress Theme and Plugin Development.

With the rise of Gutenberg editor, the usage of modern JavaScript and libraries like react is imminent. The goal of this tooling is to:

  • ✅ Provide out of the box compiling and bundling of all front-end assets.
  • ✅ Give best in class Developer Experience (DX).
    • Hot Module Replacement and Live Reload.
    • Compile files on save.
    • Work on any local development server.
  • ✅ Support modern and useful concepts like modules, tree-shaking, dynamic import etc.

and eliminate the pain points such as:

  • ❌ Boilerplate for setting up your project.
  • ❌ Doing a lot of configuration to setup webpack.
  • ❌ A lot of things to hook webpack with browsersync. We can not safely have webpack dev server because it doesn't reload for PHP files.
  • ❌ A lot of dependencies like babel, webpack loaders and what not.

What is supported out of the box

  • 👉 Have Create React App like developer experience for WordPress Plugin/Theme development.
  • 👉 Consume all the modern packages from npm registry.
  • 👉 Write javascript with modern ES2018 (ES6+) syntax and compile it down to ES5 (or in accordance to your
  • 👉 Automatically minify and bundle code with webpack.
  • 👉 Split large files automatically and have PHP library to
    all generated parts.
  • 👉 Use SASS/SCSS language to create stylesheets.
  • 👉 Use postcss autoprefixer to automatically make your CSS work with needed vendor prefixes.
  • 👉 Implement all the above to your existing wamp, mamp, vvv (basically any) dev server.
  • 👉 Create production grade, super optimized and minified files with one command (hello CI).

Here are a few more bonus you get for using wpackio.

  • 😎 Using ES6 Modules you will never run into namespace collision. > Remember when that third-party plugin was using that old version of
    library which caused > your system to completely fail? No more!.
  • 😎 Zero configuration for a sane default of all the tooling involved (babel, sass, webpack).
  • 😎 Your CSS/SCSS changes will reflect instantly.
  • 😎 Typescript and Flowtype to take your js carrier to the next level. This tooling itself is written in typescript 😉.
  • 😎 All the stuff you need to start developing using react. Hello Gutenberg!

Getting Started

Everything is documented in our website.


  • Add
    to a project by running this.
    npx @wpackio/cli
    and after that
    npm run bootstrap
  • Edit the
    file to write your javascript entry-points.
  • Use
    from composer to consume the assets.
  • Start the server using
    npm start
  • Create production file using
    npm run build

How solves the problems?

Behind the scene uses webpack along with browsersync.

It doesn't concern itself with providing boilerplate or starter templates. It assumes that you (the awesome developer

👨‍💻 || 👩‍💻
) is already doing that and what you want is a simple to configure, yet hackable to the core tooling for bundling all your frontend assets (js, css, images, svgs) in the most optimized way and make it work within your WordPress theme or plugin.

Keeping that in mind, provides three dependencies for your projects:

  1. @wpackio/entrypoint
    - As main dependency of your
  2. @wpackio/scripts
    - As main dev dependency of your
  3. wpackio/enqueue
    - As main dependency of your

The first handles all the tasks for building the assets and providing a damn good DX.

The second handles enqueuing the assets using WordPress' API (


Both the tools communicate with each other through the means of

file. The first tell the later which files to consume and the later
to the first.

See it in action

We have examples inside examples directory of this repo. Each of them has instructions in the readme file, so be sure to check out.

npx @wpackio/cli

Add into any existing or new project. This command has to be run from within the project.

npm run bootstrap
yarn bootstrap

Bootstrap needed dependencies, dev dependencies according to the type of your project. This command is enabled by

npx @wpackio/cli

Setup JS entry-points

Talking about example in plugins, we setup the entry-points in


module.exports = {
    // Project Identity
    appName: 'wpackplugin', // Unique name of your project
    type: 'plugin', // Plugin or theme
    slug: 'wpackio-plugin', // Plugin or Theme slug, basically the directory name under `wp-content/`
    // Used to generate banners on top of compiled stuff
    bannerConfig: {
        name: 'WordPress WebPack Bundler',
        author: 'Swashata Ghosh',
        license: 'GPL-3.0',
        link: '',
        version: '1.0.0',
            'This software is released under the GPL-3.0 License\n',
        credit: true,
    // Files we need to compile, and where to put
    files: [
        // App just for showing react
            name: 'reactapp',
            entry: {
                main: ['./src/reactapp/index.jsx'],
    // Output path relative to the context directory
    // We need relative path here, else, we can not map to publicPath
    outputPath: 'dist',
    // Project specific config
    // Needs react?
    hasReact: true,
    // Needs sass?
    hasSass: true,
    // Externals
    externals: {
        jquery: 'jQuery',
    // Webpack Aliases
    alias: undefined,
    // Show overlay on development
    errorOverlay: true,
    // Auto optimization by webpack
    // Split all common chunks with default config
    // Won't hurt because we use PHP to automate loading
    optimizeSplitChunks: true,
    // Usually PHP and other files to watch and reload when changed
    watch: 'inc/**/*.php',
    // Hook into babeloverride so that we can add react-hot-loader plugin
    jsBabelOverride: defaults => ({
        plugins: ['react-hot-loader/babel'],

Setup PHP Library to consume build files

Now we do

composer require wpackio/enqueue

to install PHP Consumer Library. We instruct it to load files the right way (using WordPress APIs like

// Require the composer autoload for getting conflict-free access to enqueue
require_once DIR . '/vendor/autoload.php';

// Do stuff through this plugin class MyPluginInit { /** * @var \WPackio\Enqueue */ public $enqueue;

public function __construct() {
    // It is important that we init the Enqueue class right at the plugin/theme load time
    $this->enqueue = new \WPackio\Enqueue( 'wpackplugin', 'dist', '1.0.0', 'plugin', __FILE__ );
    // Enqueue a few of our entry points
    add_action( 'wp_enqueue_scripts', [ $this, 'plugin_enqueue' ] );

public function plugin_enqueue() {
    // Enqueue the `main` entry from `reactapp` file entry.
    $this->enqueue->enqueue( 'reactapp', 'main', [] );


// Init new MyPluginInit();

npm start
yarn start

After configuring all entry-points and using the PHP library for consuming, we start the development server.


We edit the files and with proper setup, we can see things load live, without page refresh. It is called, Hot Module Replacement (HMR).

In the above image we see, we are changing the label of from

Todo App
Awesome todo
. The changes are reflected live on the page, without any page-reload.
Stop Dev Server

Once done, we press Ctrl + c to stop it.

npm run build
yarn build

Now we create production build.

Our plugin/theme is now ready to go live.

Learn more

This Readme is not an extensive source of documentation. Please visit our website to learn more.


This project exists thanks to all the people who contribute. [Contribute].


Thank you to all our backers! 🙏 [Become a backer].


Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]. (please ask your company to also support this open source project by becoming a sponsor).

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