1.2.0 • Public • Published


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Speed up your AngularJS app by automatically minifying, combining, and automatically caching your HTML templates with $templateCache.

Here's an example of the output created by this task from multiple .html files:

angular.module('app').run(["$templateCache", function($templateCache) {
    // contents for home.html ...
    // contents for button.html

Then, when you use ng-include or templateUrl with $routeProvider, the template is already loaded without an extra AJAX request!

Table of Contents


This plugin requires Grunt ~0.4.0

Usemin integration requires grunt-usemin ~2.0.0

Install the plugin:

$ npm install grunt-angular-templates --save-dev

Enable the plugin within your Gruntfile:




Global namespace for Angular.

If you use angular.noConflict(), then set this value to whatever you re-assign angular to. Otherwise, it defaults to angular.


Callback to modify the bootstraper that registers the templates with $templateCache.

By default, the bootstrap script wraps function($templateCache) { ... } with:

angular.module('app').run(['$templateCache', ... ]);

If you want to create your own wrapper so you register the templates as an AMD or CommonJS module, set the bootstrap option to something like:

bootstrap: function(module, script) {
  return 'module.exports[module] = ' + script + ';';


Name of concat target to append the compiled template path to.

This is especially handy if you combine your scripts using grunt-contrib-concat or grunt-usemin.


Object containing htmlmin options that will significantly reduce the filesize of the compiled templates.

Without this, the HTML (whitespace and all) will be faithfully compiled down into the final .js file. Minifying that file will only cut down on the Javascript code, not the HTML within the strings.

Note - this does incur a performance cost. Simply leave out this option to prevent minificaiton.

I recommend using the following settings for production:

htmlmin: {
  collapseBooleanAttributes:      true,
  collapseWhitespace:             true,
  keepClosingSlash:               true, // Only if you are using SVG in HTML
  removeAttributeQuotes:          true,
  removeComments:                 true, // Only if you don't use comment directives!
  removeEmptyAttributes:          true,
  removeRedundantAttributes:      true,
  removeScriptTypeAttributes:     true,
  removeStyleLinkTypeAttributes:  true


String of the angular.module to register templates with.

If not specified, it will automatically be the name of the ngtemplates subtask (e.g. app, based on the examples below).


String to prefix template URLs with. Defaults to ''

If you need to use absolute urls:

ngtemplates: {
  app: {
    options: {
      prefix: '/'

If you serve static assets from another directory, you specify that as well.


Callback to modify the template's source code.

If you would like to prepend a comment, strip whitespace, or do post-processing on the HTML that ngtemplates doesn't otherwise do, use this function.


Boolean to indicate the templates should be appended to dest instead of replacing it. Normally grunt-angular-templates creates a new file at dest. This option makes it append the compiled templates to the dest file rather than replace its contents. This is just a useful alternative to creating a temporary dest file and concatting it to your application.


Boolean indicated if the templates are part of an existing module or a standalone. Defaults to false.

  • If the value is false, the module will look like angular.module('app'), meaning app module is retrieved.
  • If the value is true, the module will look like angular.module('app', []), meaning app module is created.


Callback to modify the template's $templateCache URL.

Normally, this isn't needed as specifying your files with cwd ensures that URLs load via both AJAX and $templateCache.


Path to <!-- build:js [path/to/output.js] --> usemin target

This should be the output path of the compiled JS indicated in your HTML, such as path/to/output.js shown here.


Use single or double quotes to wrap the template strings

Defaults to 'double', other option is 'single'


Compiling HTML Templates

After configuring your ngtemplates task, you can either run the task directly:

$ grunt ngtemplates

Or, bake it into an existing task:

grunt.registerTask('default', [ 'jshint', 'ngtemplates', 'concat' ]);

Including Compiled Templates

Finally, you have to load the compiled templates' .js file into your application.

Using HTML

<script src="templates.js"></script>

Using Grunt's concat task:

This is my personal preference, since you don't have to worry about what the destination file is actually called.

concat:   {
  app:    {
    src:  [ '**.js', '<%= %>' ],
    dest: [ 'app.js' ]

Using grunt-usemin

Using the following HTML as an example:

<!-- build:js dist/vendors.js -->
<script src="bower_components/angular/angular.js"></script>
<script src="bower_components/angular-resource/angular-resource.js"></script>
<!-- endbuild -->

Do not use the concat option, even though grunt-usemin generates a concat.generated object behind the scenes. Instead, use the usemin option to indicate the anticipated output filepath from grunt-usemin.

ngtemplates:  {
  app:        {
    src:      '**.html',
    dest:     'template.js',
    options:  {
      usemin: 'dist/vendors.js' // <~~ This came from the <!-- build:js --> block

Note: Earlier versions of grunt-usemin (correctly, in my opinion) would have generated a concat['dist/vendors.js'] object for each build section in the HTML. Now, because there's a single concat.generated object with all JS/CSS files within it, I'm back-tracking the proper concat target for you.


Register HTML Templates in app Module

ngtemplates:  {
  app:        {
    src:      '**.html',
    dest:     'templates.js'

Register Relative Template URLs

Normally, your app, templates, & server are in separate folders, which means that the template URL is different from the file path.

ngtemplates:  {
  app:        {
    cwd:      'src/app',
    src:      'templates/**.html',
    dest:     'build/app.templates.js'

This will store the template URL as templates/home.html instead of src/app/templates/home.html, which would cause a 404.

Minify Template HTML

Simply pass the same options as the htmlmin task:

ngtemplates:    {
  app:          {
    src:        '**.html',
    dest:       'templates.js',
    options:    {
      htmlmin:  { collapseWhitespace: true, collapseBooleanAttributes: true }

Or, if you already have an existing htmlmin task, you can reference it:

ngtemplates:    {
  app:          {
    src:        '**.html',
    dest:       'templates.js',
    options:    {
      htmlmin:  '<%= %>'

Customize Template URL

Suppose you only use ngtemplates when on production, but locally you serve templates via Node, sans the .html extension.

You can specify a url callback to further customize the registered URL:

ngtemplates:  {
  app:        {
    src:      '**.html',
    dest:     'templates.js',
    options:  {
      url:    function(url) { return url.replace('.html', ''); }

Customize Output

Some people like AMD & RequireJS and would like wrap the output in AMD or something else (don't ask me why!):

ngtemplates:      {
  app:            {
    src:          '**.html',
    dest:         'templates.js',
    options:      {
      bootstrap:  function(module, script) {
        return 'define(' + module + ', [], function() { return { init: ' + script + ' }; });';

You will be able to custom everything surrounding $templateCache.put(...).


  • v1.1.0 - Added the merge option to allow templates to maintain directory structure if set to false (#114)
  • v1.0.4 - Updated html-minifier to 2.1.2 (#162)
  • v1.0.3 - Fixes issue with using usemin without uglify (#153)
  • v1.0.2 - Fixes issue with escaping carriage returns (#147), Fixes issue with escaping backslashes (#146)
  • v1.0.1 - Log error instead of warning when minify fails (#139)
  • v1.0.0 - Updated unit tests for performance and bumps dependency versions (#143)
  • v0.6.0 - Adds quotes options to allow wrapping in single instead of double quotes (#142)
  • v0.5.9 - Fixes over-matching on cwd when expand:true
  • v0.5.8 - Fixes cwd being part of the $templateCache string when expand:true (#134), Added verbose logging for minify (#136)
  • v0.5.7 – Improve error messages (#100)
  • v0.5.6 – Updated html-minifier to correct whitespace issues. (96)
  • v0.5.5 – Add append option to concat, not overwrite the dest. (#89)
  • v0.5.4 – Specifying an invalid usemin option still creates file (#84)
  • v0.5.3 – Fix bug with Underscore templates (#79)
  • v0.5.2 – Fix usemin matching issue on Windows (#80)
  • v0.5.1 – Add usemin option form v0.4.10
  • v0.5.0 – Works with grunt-usemin (#44)
  • v0.4.10 – Add usemin option
  • v0.4.9 – Improve prefix and support for URLs (#57)
  • v0.4.8 – Compiled assets are JSHint-able (#58)
  • v0.4.7 – Fix bug for when htmlmin is not an Object (#56)
  • v0.4.6 – Add prefix option for easier URL prefixes (#53)
  • v0.4.5 – Attempt to better normalize templates based on current OS (#52)
  • v0.4.4 – Fixed regression caused by htmlmin (#54)
  • v0.4.3 - options.concat targets on Windows convert / to \\. #48
  • v0.4.2 - Fix for using grunt-env to change environments. Thanks to @FredrikAppelros (#20)
  • v0.4.1 – Fix bug with empty files.
  • v0.4.0 – Complete rewrite.
  • v0.3.12 – Whoops, forgot to make htmlmin a regular dependency. Thanks @rubenv (#37)
  • v0.3.11 – Add htmlmin option that supports both an { ... } and <%= htmlmin.options %> for existing tasks.
  • v0.3.10 – Fix unknown concat target bug on windows, thanks to @trask (#31)
  • v0.3.9 – Allow the creation of a new module via module.define, thanks to @sidwood (#28)
  • v0.3.8 – Fix error that occurs when adding 0-length files, thanks to @robertklep (#27)
  • v0.3.7 – Add noConflict option to work with angular.noConflict, thanks to @mbrevoort (#26)
  • v0.3.6 – Fix issue with dading to concat task when it's an array, thanks to @codefather (#23)
  • v0.3.5 – Preserver line endings in templates, thanks to @groner (#21)
  • v0.3.4 – Attempt to fix a bug with Path, thanks to @cgross (#19)
  • v0.3.3 – Add concat option for automatically adding compiled template file to existing concat (or usemin-created) task, thanks to @cgross (#17)
  • v0.3.2 – Add module option for setting which module the templates will be added to, thanks to @sidwood (#20)
  • v0.3.1 – Add prepend option for modifying final $templateCache IDs, thanks to @mbarchein. (#16)
  • v0.3.0 – BC break - Templates are added to an existing module (e.g. myapp) rather than being their own myapp.templates module to be manually included, thanks to @geddesign. (#10)
  • v0.2.2 – Escape backslashes, thanks to @dallonf. (#9)
  • v0.2.1 – Remove ./bin/grunt-angular-templates. No need for it!
  • v0.2.0 – Update to Grunt 0.4, thanks to @jgrund. (#5)
  • v0.1.3 – Convert \\ to / in template IDs (for on win32 systems) (#3)
  • v0.1.2 – Added NPM keywords
  • v0.1.1 – Fails to combine multiple templates. Added directions to README on how to integrate with AngularJS app. Integrated with TravisCI
  • v0.1.0 – Released to NPM


Copyright (c) 2013 Eric Clemmons Licensed under the MIT license.

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