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Extends Twitter Bootstrap with additional lightweight JavaScript controls. Easy to install, customize, update, and optimize. All functionality covered by live documentation and unit tests.

Fuel UX

Fuel UX extends Bootstrap with additional lightweight JavaScript controls. Other benefits include easy installation into web projects, integrated scripts for customizing Bootstrap and Fuel UX, simple updates, and solid optimization for deployment. All functionality is covered by live documentation and unit tests.

Selenium Test Status

Build Status


Fuel UX provides all of the styles and plugins from the revolutionary Bootstrap project, with the following additions:

  • Fuel UX JavaScript controls (with unit tests) see them live
    • Checkbox - consistent cross-browser cross-platform look and feel for checkbox elements
    • Combobox - combines input and dropdown for easy and flexible data selection
    • Datagrid - renders data in a table with paging, sorting, and searching
    • Datepicker - combines input and dropdown for easy selection of dates
    • Pillbox - manages selected items with color-coded text labels
    • Preloader - fully css-driven loading animation for visual indication of wait times
    • Radio - consistent cross-browser cross-platform look and feel for radio elements
    • Scheduler - composite form control to quickly schedule events
    • Search - combines input and button for integrated search interaction
    • Select - extends button dropdown with the ability to set and retrieve the selected item
    • Spinner - provides convenient numeric input with increment and decrement buttons
    • Tree - renders data in a tree, supporting caching and optional multi-selection
    • Wizard - displays a multi-step process to be completed in a specific order

  • Smart Dropdowns - dropdown automatically decides whether it should be placed above or below the clicked element (can also force position). Add data-direction="auto|up|down" to element that has data-toggle="dropdown"

  • One-step installation and updates through volo

  • AMD compatibility for modular structure and deployment optimization
  • Grunt-based build script to easily create custom distribution files
  • Namespaced CSS (just add a fuelux class) for safe use on existing sites

Getting Started


You can install FuelUX using volo. You will want to pass the -amdoff flag to volo to tell it not to try and amdify the project:

volo add -amdoff fuelux


  • git clone git://
  • Default Fuel UX files for production use are located in the dist directory
  • To customize, modify the JS and LESS files under src then run grunt to regenerate your dist directory (more below)


Be sure to add the fuelux stylesheet to your page's head tag, along with the responsive stylesheet if desired:

<link href="//" rel="stylesheet" type="text/css">
<link href="//" rel="stylesheet" type="text/css">


If using AMD (such as RequireJS) reference the fuelux directory in your paths configuration, wherever it is located:

    paths: {
        'fuelux': ''

Then list any individual fuelux controls needed as dependencies within your application modules:

define(function(require) {
    var spinner = require('fuelux/spinner');

Alternatively, 'fuelux/all' can be used as a dependency to bring in all available controls at once.


If you'd prefer not to use AMD, simply add the loader script to the head tag of your page:

<script src="" type="text/javascript"></script>

Documentation and Examples

Live docs and demos

Hosted on GitHub pages:

Rich documentation

Hosted on our Developer Community:

Issues and Feature Requests

Search for questions tagged "Fuel UX" on our developer community

Search for or report a bug

Use GitHub issues:

View the roadmap and suggest new ideas

Visit our UserVoice community:

Release History

Fuel UX is semantically versioned:

Release history can be found here.


Before writing code, we suggest you search for issues or create a new one to confirm where your contribution fits into our roadmap.

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.

More about Contributing to Fuel UX

Important notes

Please don't edit files in the dist directory as they are generated via grunt. You'll find source code in the src directory!

While grunt can run the included unit tests via PhantomJS, this isn't a substitute for the real thing. Please be sure to test the test/*.html unit test file(s) in real browsers as well.

More about Installing grunt and PhantomJS

The Fuel UX Philosophy

Our aim is to provide a suite of related but independent projects that help web developers integrate, manage, and customize quality libraries and utilities to more efficiently develop, maintain, test, and distribute their projects. Any improvements or fixes we make to the open source projects we use will be contributed upstream if they are useful to the rest of the community.


We are grateful to the maintainers, contributors, and sponsors of the following technologies which make FuelUX possible:

  • jQuery (Library for DOM, events, animation, and AJAX)

  • Bootstrap (Modern UI components and interactions)

  • LESS and recess (Stylesheet definition and management)

  • RequireJS and volo (Tools for managing modular JavaScript)

  • grunt (Build tool for JavaScript projects)


Adam Alexander

Matt Beard

Bryan Kohlmeier

Kevin Parkerson

Christopher McCulloh

David Waltz

Dustin McCormick

Alex Vernacchia

Scott Plumlee

Marvin Pribble

Ryan Moore

Steven Rogers

Andy Engle

Copyright and license

Copyright (c) 2012 ExactTarget

Licensed under the MIT License (the "License"); you may not use this work except in compliance with the License. You may obtain a copy of the License in the COPYING file.

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. alpha

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