The Mix CLI

As part of Mix v6, you'll find a new CLI that simplifies your build scripts.

Compiling in a Local Environment

To build assets for development, reach for the npx mix command. Mix will then read your webpack.mix.js configuration file, and compile your assets.

npx mix

Watch Assets for Changes

Particularly for larger projects, compilation can take a bit of time. For this reason, it's highly recommended that you instead leverage webpack's ability to watch your filesystem for changes. The npx mix watch command will handle this for you. Now, each time you update a file, Mix will automatically recompile the file and rebuild your bundle.

npx mix watch


In certain situations, webpack may not automatically detect changes. An example of this is when you're on an NFS volume inside virtualbox. If this is a problem, pass the --watch-options-poll option directly to webpack-cli to turn on manual polling.

 npx mix watch -- --watch-options-poll=1000

Of course, you can add this to a build script within your package.json file.

Hot Module Replacement

Hot module replacement is a webpack featured that gives supporting modules the ability to "live update" in certain situations. A live-update is when your application refreshes without requiring a page reload. In fact, this is what powers Vue's live updates when developing. To turn this feature on, include the --hot flag.

npx mix watch --hot

Compiling for Production

When it comes time to build your assets for a production environment, Mix will set the appropriate webpack options, minify your source code, and optionally version your assets based on your Mix configuration file (webpack.mix.js). To build assets for production, include the --production flag - or the alias -p - to the Mix CLI. Mix will take care of the rest!

npx mix --production

Customize the Mix Configuration Path

You may customise the location of your webpack.mix.js file by using the --mix-config option. For example, if you wish to load your webpack.mix.js file from a nested build directory, here's how:

 npx mix --mix-config=build/webpack.mix.js --production

Pass Options to Webpack-CLI

If you end any mix call with two dashes (--), anything after it will be passed through to webpack-cli. For example, you can pass environment variables using webpack-cli's --env option:

npx mix -- --env foo=bar