Neutrino middleware for minifying assets


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Neutrino Minify Middleware

@neutrinojs/minify is Neutrino middleware for minifying babel, css, and image assets.

This middleware is usually only added during production builds.

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  • Node.js v6 LTS, v8, v9
  • Yarn v1.2.1+, or npm v5.4+
  • Neutrino v8


@neutrinojs/minify can be installed via the Yarn or npm clients.


❯ yarn add @neutrinojs/minify


❯ npm install --save @neutrinojs/minify


@neutrinojs/minify can be consumed from the Neutrino API, middleware, or presets. Require this package and plug it into Neutrino:

// Using function middleware format
const minify = require('@neutrinojs/minify');

// Use with default options

// Usage showing overriding middleware options
neutrino.use(minify, {
  babel: {},
  image: {},
  style: {}
// Using object or array middleware format

// Use with default options
module.exports = {
  use: ['@neutrinojs/minify']

// Usage showing overriding middleware options
module.exports = {
  use: [
    ['@neutrinojs/minify', {
      babel: {},
      image: {},
      style: {}


@neutrinojs/minify creates some conventions to make overriding the configuration easier once you are ready to make changes.



The following is a list of plugins and their identifiers which can be overridden:

Name Description Environments and Commands
babel-minify Minifies source code using BabelMinifyWebpackPlugin. From @neutrinojs/babel-minify. all
imagemin Optimize any images added by other webpack plugins (e.g. copy-webpack-plugin). From @neutrinojs/image-minify. all
optimize-css Minifies css using OptimizeCssAssetsPlugin. From @neutrinojs/style-minify. all


This middleware is part of the neutrino-dev repository, a monorepo containing all resources for developing Neutrino and its core presets and middleware. Follow the contributing guide for details.

If you find any bugs or have a feature request, please open an issue on github!

The npm package download data comes from npm's download counts api and package details come from npms.io.