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npm install --save-dev webpack
The README reflects webpack v2.x, webpack v1.x documentation can be found here.
- Bundles ES Modules, CommonJS and AMD modules (even combined).
- Can create a single bundle or multiple chunks that are asynchronously loaded at runtime (to reduce initial loading time).
- Dependencies are resolved during compilation, reducing the runtime size.
- Highly modular plugin system to do whatever else your application requires.
webpack has a rich plugin interface. Most of the features within webpack itself use this plugin interface. This makes webpack very flexible.
Name Status Description common-chunks-webpack-plugin Generates chunks of common modules shared between entry points and splits them into separate bundles (e.g vendor.bundle.js && app.bundle.js) extract-text-webpack-plugin Extracts Text (CSS) from your bundles into a separate file (app.bundle.css) component-webpack-plugin Use components with webpack compression-webpack-plugin Prepare compressed versions of assets to serve them with Content-Encoding i18n-webpack-plugin Adds i18n support to your bundles html-webpack-plugin Simplifies creation of HTML files (
index.html) to serve your bundles
Loaders are activated by using
require()statements, or are automatically applied via regex from your webpack configuration.
Name Status Description raw-loader Loads raw content of a file (utf-8) val-loader Executes code as module and consider exports as JS code url-loader Works like the file loader, but can return a Data Url if the file is smaller than a limit file-loader Emits the file into the output folder and returns the (relative) url
Name Status Description Loads a JSON file (included by default) Loads and transpiles a JSON 5 file Loads and transpiles a CSON file
Name Status Description
Name Status Description Exports HTML as string, require references to static resources Loads Pug templates and returns a function Loads Jade templates and returns a function Compiles Markdown to HTML Loads and transforms a HTML file using PostHTML Compiles Handlebars to HTML
Name Status Description
Add exports of a module as style to DOM Loads CSS file with resolved imports and returns CSS code Loads and compiles a LESS file Loads and compiles a SASS/SCSS file Loads and compiles a Stylus file Loads and transforms a CSS/SSS file using PostCSS
Linting && Testing
Name Status Description Tests with mocha (Browser/NodeJS) PreLoader for linting code using ESLint PreLoader for linting code using JSHint PreLoader for code style checking using JSCS
Name Status Description Loads and compiles Vue Components Process HTML & CSS with preprocessor of choice and
require()Web Components like first-class modules
Loads and compiles Angular 2 Components Riot official webpack loader
webpack uses async I/O and has multiple caching levels. This makes webpack fast and incredibly fast on incremental compilations.
webpack supports ES2015+, CommonJS and AMD modules out of the box. It performs clever static analysis on the AST of your code. It even has an evaluation engine to evaluate simple expressions. This allows you to support most existing libraries out of the box.
webpack allows you to split your codebase into multiple chunks. Chunks are loaded asynchronously at runtime. This reduces the initial loading time.
Most of the time, if webpack is not working correctly for you it is a simple configuration issue.
If you are still having difficulty after looking over your configuration carefully, please post a question to StackOverflow with the webpack tag. Questions that include your webpack.config.js and relevant files are more likely to receive responses.
If you have discovered a bug or have a feature suggestion, feel free to create an issue on Github.
If you create a loader or plugin, please consider open sourcing it, putting it on npm and following the
You are also welcome to correct any spelling mistakes or any language issues.
If you want to discuss something or just need help, here is our Gitter room.
Founder of webpack
Loaders & Plugins
Early adopter of webpack
Sean T. Larkin
Founder of the core team
Most of the core team members, webpack contributors and contributors in the ecosystem do this open source work in their free time. If you use webpack for a serious task, and you'd like us to invest more time on it, please donate. This project increases your income/productivity too. It makes development and applications faster and it reduces the required bandwidth.
This is how we use the donations:
- Allow the core team to work on webpack
- Thank contributors if they invested a large amount of time in contributing
- Support projects in the ecosystem that are of great value for users
- Support projects that are voted most (work in progress)
- Infrastructure cost
- Fees for money handling
Other Backers and Sponsors
Before we started using OpenCollective, donations were made anonymously. Now that we have made the switch, we would like to acknowledge these sponsors (and the ones who continue to donate using OpenCollective). If we've missed someone, please send us a PR, and we'll add you to this list.
Become a sponsor and get your logo on our README on Github with a link to your site.
Become a backer and get your image on our README on Github with a link to your site.
(In chronological order)
- @medikoo for modules-webmake, which is a similar project. webpack was born because I wanted Code Splitting for modules-webmake. Interestingly the Code Splitting issue is still open (thanks also to @Phoscur for the discussion).
- @substack for browserify, which is a similar project and source for many ideas.
- @jrburke for require.js, which is a similar project and source for many ideas.
- @defunctzombie for the browser-field spec, which makes modules available for node.js, browserify and webpack.
- Every early webpack user, which contributed to webpack by writing issues or PRs. You influenced the direction...
- @shama, @jhnns and @sokra for maintaining this project
- Everyone who has written a loader for webpack. You are the ecosystem...
- Everyone I forgot to mention here, but also influenced webpack.