Cacher is the code snippet organizer for pro developers

Install Imagemin plugin for Webpack

npm install imagemin-webpack-plugin

Update webpack.mix.js

// Add near top of file
let ImageminPlugin = require( 'imagemin-webpack-plugin' ).default;

mix.webpackConfig( {
    plugins: [
        new ImageminPlugin( {
//            disable: process.env.NODE_ENV !== 'production', // Disable during development
            pngquant: {
                quality: '95-100',
            },
            test: /\.(jpe?g|png|gif|svg)$/i,
        } ),
    ],
} )

and copy over the image files

mix.copy( 'resources/assets/images', 'public/images', false );