MODX (originally MODx) is a free, open source content management system and web application framework for publishing content on the world wide web and intranets. MODX is licensed under the GPL, is written in the PHP programming language, and supports MySQL and Microsoft SQL Server as the database. It was awarded Packt Publishing’s Most Promising Open Source Content Management System in 2007.

The developers Raymond Irving and Ryan Thrash began the MODX CMS project in 2004 as a mashup of DocVars for Etomite and Raymond’s web user add-on. In March 2005, all references to “MODX” were removed from the Etomite forums, coupled with a request from its founder to cease MODX support activities there. At this point, MODX became a fork of Etomite.

By May 2005, the MODX forums were online and Jason Coward joined the project leadership team. In 2007, Raymond left the project on amicable terms. The following year, Shaun McCormick joined the project leadership team.


MODX allows for full segregation of content (plain HTML), appearance and behavior (standards compliant CSS and JavaScript), and logic (PHP snippets).

  • Graphical web-based installer.
  • Supports PHP 5.1.1 and above.
  • Supports WYSIWYG rich-text editors.
  • The Manager application works cross-browser and cross-platform, including Firefox, Safari, and Internet Explorer on Windows, Mac OS X (Firefox and Safari), and Linux (Firefox).
  • Can be installed under IIS, Apache, Lighttpd, Hiawatha, Cherokee, nginx, and Zeus web servers.
  • Supports any Ajax library, including jQuery, MooTools, ExtJS, and Prototype.
  • Recursive parser for nested functionality.
  • Complete control of all metadata and URL structure for Search Engine Optimization (SEO) purposes.
  • Object-oriented, MVC compliant core code.
  • Role-based permissions for the Manager.
  • Ability to customize the Manager on a per-deployment basis.
  • Ability to install add-ons right from the Manager.
  • Ecommerce integration via Foxy Cart.

Extensions and Modules

Additional extensions or modules for MODX (installed to enhance the CMS or add additional features) are called “Extras”. These extras are installed within the manager as “Packages”, delivered by package providers. Out of the box MODX comes with one “Provider”, which is MODX’s own core package platform.


Additional package providers can be added by administrators, and a number of providers are found on the MODX forums.

Download Modx

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