atch a screencast to see it in action!

Watch Screencast

Illuminations is made by Steven Roussey, one of the volunteer developers of Firebug, so it should be no surprise that it is designed to work with it:

Install Now!
Trial Version

Requires Firefox & Firebug

Illuminations for Developers

A browser extension that takes JavaScript frameworks and makes their internals visible, including views, models, class names, and more.

Now Shipping for Sencha Inc.'s ExtJS frameworks.

ExtJS versions 2.x, 3.x, 4.x

Beta support for Dojo Toolkit, SproutCore, qooxdoo, YUI3, Google Closure Library, and alpha support for EmberJS, BackboneJS (including StackMob and Parse), Uki, Enyo2, and jQueryUI.


Read the Introduction on the Blog...
Hidden, secret alpha version for Chrome. Shhh...
v1.1.27 Fix for "expires" bug -- 21 January 2014

v1.1.26 New side panel for HTML panels that show related JS framework objects for the selected HTML element -- 2 August 2013

v1.1.25 fixes an issue with Firefox 22 and later -- 20 June 2013

v1.1.24 fixes lot of issues with Sencha frameworks and with Backbone -- 2 April 2013

v1.1.23 fixes issues with the context menu on newer versions of Firebug -- 24 January 2013

v1.1.22 brings Enyo2 support as well as Parse and StackMob -- 7 October 2012

I'm really excited to see tools which try to help the developer piece together a coherent story about the state of their web apps, instead of just burying them in a pile of data. I think the natural next step is to follow this evolution from straight data to... interpreted data, data that anticipates the questions web developers are trying to answer. I think Illuminations really nails that when it comes to web toolkit users.—Johnathan Nightingale, Director of Firefox Development, Mozilla

Illuminations saves Sencha developers time and effort in understanding and debugging complex web applications, making it an invaluable tool for every development.—Abraham Elias, CEO, Sencha Inc.
For companies and organizations For individual developers
$50 includes 1yr
$25/yr thereafter
$25 includes 1yr
$12/yr thereafter
Get Started Get Started