Slim progress bars for Ajax'y applications. Inspired by Google, YouTube, and Medium for the Rails Asset Pipeline (and some turbolinks/pjax/angular love)
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Latest commit 94ad8fe Aug 5, 2016

nprogress-rails Gem Version Dependency Status Stories in Ready

This is basically a ruby gem for asset pipeline which includes the version 0.2.0 of the awesome rstacruz' nprogress library.


Add this line to your application's Gemfile:

gem 'nprogress-rails'

And then execute:

$ bundle

Or install it yourself as:

$ gem install nprogress-rails


You basically have to add the requires to the application.js file:

//= require nprogress
//= require nprogress-turbolinks

The nprogress-turbolinks is required only if you use turbolinks. Using pjax rather than turbolinks? Simply require nprogress-pjax instead. Want it also for simple jQuery AJAX calls? Just require nprogress-ajax. Otherwise, you will have to deal with show/hide the progress by your own.

Also, into your application.css.scss file:

*= require nprogress
*= require nprogress-bootstrap
*= require nprogress-turbolinks5

The nprogress-bootstrap is required if you use bootstrap and have a fixed toolbar or anything else. tl;dr: if the console shows no errors, but the progress doesn't appear, try this.

The nprogress-turbolinks5 is required if you use turbolinks 5 and does not want the default turbolinks progress to show up.

Angular.js support

You can try the Angular.js support with something like this (again, in application.js file):

//= require nprogress
//= require nprogress-angular

angular.module('myApp', [ 'nprogress-rails' ]);

This should make all requests made with $http show/hide the NProgress bar.


You can use any of the configurations described in the readme with this lib. I just recommend you to do so ASAP, for example, just after the nprogress-rails require:

//= require nprogress

  showSpinner: false,
  ease: 'ease',
  speed: 500

Since the v0.1.2.3 release, you can also change the color of the progressbar using SASS:

$nprogress-color: #f1f1f1;
$nprogress-height: 10px;
$nprogress-zindex: 10100;

@import 'nprogress';
@import 'nprogress-bootstrap';

Ajax - jQuery or Prototype

nprogress-ajax automatically triggers the NProgress bar when an Ajax request is started (the 'ajaxStart' event), and finishes it when the Ajax request completes (the 'ajaxStop' event). This works for any Ajax events triggered using jQuery.

If you're using Prototype, you can include the nprogress-ajax-prototype javascript file instead, which works for Ajax requests started from Prototype (the 'onCreate' and 'onComplete' events, to be exact).


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request