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Managing CSS and JavaScript

Managing CSS and JavaScript

Symfony ships with a pure-JavaScript library - called Webpack Encore - that makes working with CSS and JavaScript a joy. You can use it, use something else, or just create static CSS and JS files in your web/ directory and include them in your templates.

Webpack Encore

Webpack Encore is a simpler way to integrate Webpack into your application. It wraps Webpack, giving you a clean & powerful API for bundling JavaScript modules, pre-processing CSS & JS and compiling and minifying assets. Encore gives you professional asset system that’s a delight to use.

Encore is inspired by Webpacker and Mix, but stays in the spirit of Webpack: using its features, concepts and naming conventions for a familiar feel. It aims to solve the most common Webpack use cases.


Encore is made by Symfony and works beautifully in Symfony applications. But it can easily be used in any application… in any language!


Assetic is a pure PHP library that helps to process & optimize your assets (similar to Encore). Even though we recommend using Encore, Assetic still works great. For a comparison, see Encore Versus Assetic?.

For more about Assetic, see Assetic.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.