@toptalo/grunt-webp

Grunt plugin to convert images to WebP format

Build upon node-webp, Node.js wrapper for cwebp and dwebp binaries from WebP image processing utility.

Getting Started

This plugin requires Grunt ^1.0.1

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install @toptalo/grunt-webp --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('cwebp');

The "cwebp" task

Overview

In your project's Gruntfile, add a section named cwebp to the data object passed into grunt.initConfig().

grunt.initConfig({
  cwebp: {
    options: {
      // Task-specific options go here.
    },
    your_target: {
      // Target-specific file lists and/or options go here.
    }
  }
});

Options

options.quality

Type: Number

Quality factor (0:small..100:big), default=75

Usage Examples

grunt.initConfig({
    cwebp: {
        options: {
            quality: 75,
            png: {
                lossless: true
            }
        },
        files: {
            expand: true,
            cwd: './test/images/',
            src: ['**/*.{png,jpeg,jpg}'],
            dest: './tmp/',
            ext: '.webp'
        }
    }
});

Contributing

In lieu of a formal style guide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

See the CHANGELOG.