Build out a lean, mean Modernizr machine.
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Latest commit 40b57cc May 3, 2018


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A Grunt wrapper for Modernizr.


Install this grunt plugin next to your project's Gruntfile.js:

When you're ready to build, grunt-modernizr will crawl your project for Modernizr test references and save out a minified, uglified, customized version using only the tests you've used in your JavaScript or (S)CSS.

Getting Started

Install this grunt plugin next to your project's grunt.js gruntfile with:

npm install grunt-modernizr --save-dev

Then add this line to your project's Gruntfile.js:



For Full Features & Configuration? → See Customizr

Run the task with grunt modernizr:dist.

Config Options

Add a modernizr config object to your Gruntfile.js file. The task supports multiple targets:

modernizr: {
  dist: {
    "parseFiles": true,
    "customTests": [],
    "devFile": "/PATH/TO/modernizr-dev.js",
    "dest": "/PATH/TO/modernizr-output.js",
    "tests": [
      // Tests
    "options": [
    "uglify": true

You can also generate the configuration file online via the modernizr build tool. Just configure your build, click the Build button, and download/copy the Grunt Config.

Available Settings

See the customizr repository for valid settings.


Copyright (c) 2016 Richard Herrera Licensed under the MIT license.