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Project Description
XOOPS is an extensible, OO (Object Oriented), easy to use dynamic web content management system written in PHP, ideal for developing Websites.


XOOPS is an acronym of "eXtensible Object Oriented Portal System". Though started as a portal system, it is now developing as a Web Application Platform. It aims to serve as a web framework for use by small, medium and large sites, through the installation of modules. For example, a small XOOPS installation can be used as a personal weblog or journal, but this can be expanded upon and customized, for example users might add the appropriate modules (freeware and commercial) to store content in news, forums, downloads, and more. Constantly updated and improved, it draws praises from reviewers
Due to its popularity all over the world, there are several books written about XOOPS in many languages


XOOPS received numerous International Awards and Recognitions, among them:
  • 2006 First Runner-Up status in the's Community Choice Awards in the Development category,
  • 2008 being from Germany's Chip Magazine (5 Stars),
  • 2008 Adobe Edge Magazine (Top 3 content management system),
  • 2008 ONDD (one of top Open Source CMS for Medical Professionals).
  • 2008 Finalist in the's Community Choice Awards in the "Best Project" category,
  • 2008 China Open Source Software Contest Award
  • 2008 Finalist in CMS Awards by Packt Publishing as Best PHP Open Source CMS
  • 2008 Onokazu, a founder of XOOPS, also won the title as one of "Open Source CMS Most Valued People" at the Packt awards.
  • 2009 Grand Prize in OSS Challenge in Korea
  • 2009 Finalist in CMS Awards by Packt Publishing as Best Overall Open Source CMS

It is the most active and downloaded CMS project on

Key features

Because XOOPS is released under the terms of the GNU General Public License (GPL) the growth and development of XOOPS is dependent on the contributions of a worldwide community effort.

XOOPS uses a relational database (currently MySQL) to store data required for running a web-based content management system.

Advanced access control layer
Administrators have the ability to grant specific groups of users specific access rights to content and features such as edit, delete, upload, add attachments, publish content, and so on.

Modules can be installed, uninstalled, activated, and deactivated using the module administration system.

Core features usable by modules
XOOPS possess a number of core features that can be used by modules like permissions, comments, notifications and blocks features.

Administrators have the ability to set specific permissions for user access and control of individual elements of their websites.

User Management
The ability to search for users by various criteria, send email and private messages to users through a template-based messaging system.

International language support
The XOOPS community has official support sites around the world for non-English-speaking users. Additionally XOOPS itself supports multi-byte character sets for languages that use characters not in the Latin alphabet, for example Japanese, Simplified and Traditional Chinese, Korean, etc. The multi-language support is also available on the PDF generation feature provided by the TCPDF library.

Theme-based skinnable interface
XOOPS uses themes for page presentation. Both administrators and users can change the look of the entire web site by selecting from available themes.

XOOPS uses the Smarty templating engine which allows many benefits such as easier separation between business logic and presentation logic as well as content caching.

Built-in LDAP authentication

Some SEO add-ons
A number of XOOPS modules contains features to facilitate the indexing of a website in search engines, like metatags, title tags and occasionally some URL rewriting. However, XOOPS does not give its users full control over their URLs. Where URL rewriting is possible, XOOPS often uses redirects that may confuse search engines. In addition, some XOOPS modules create duplicate content by making the same information available on more than one URL while in other cases (especially in case of multilingual sites), several sets of content may be made available through the same URL.

Last edited Oct 29, 2009 at 7:40 AM by xoops, version 5