Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla the most popular Web site software available. Best of all, Joomla is an open source solution that is freely available to everyone.

Drupal is an open-source platform and content management system for building dynamic web sites offering a broad range of features and services including user administration, publishing workflow, discussion capabilities, news aggregation, metadata functionalities using controlled vocabularies and XML publishing for content sharing purposes.

Joomla is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla the most popular Web site software available. Best of all, Joomla is an open source solution that is freely available to everyone.

PHP-Fusion is a light-weight open-source content management system (CMS) written in PHP 5. It utilises a MySQL database to store your site content and includes a simple, comprehensive administration system. PHP-Fusion includes the most common features you would expect to see in many other CMS packages.

Concrete5 makes running a website easy. Go to any page in your site, and a editing toolbar gives you all the controls you need to update your website. No intimidating manuals, no complicated administration interfaces - just point and click.

MODX helps you take control of your online content. An Open Source PHP application framework, it frees you to build sites exactly how you want and make them 100% yours. Zero restrictions and fast to build. Super-simple templates in regular HTML/CSS/JS (any lib you want). Registered user systems and a killer community. Welcome to web-building nirvana.

CMS Made Simple provides a fast and easy way to create a professional web site and manage its content, whether it's for a small business or a multinational corporation! CMS Made Simple provides a mechanism for the website administrator to create and manage pages, their layout, and their content. CMS Made Simple is unobtrusive. You can create a table based layout, or a fully validating XHTML/CSS layout.

e107 is a content management system written in PHP and using the popular open source MySQL database system for content storage. It's completely free, totally customisable and in constant development.

Xoops is an easy to use dynamic web content management system written in PHP. XOOPS is an acronym of eXtensible Object Oriented Portal System. Though started as a portal system, XOOPS is in fact striving steadily on the track of Content Management System. It can serve as a web framework for use by small, medium and large sites.Xoops is an easy to use dynamic web content management system written in PHP. XOOPS is an acronym of eXtensible Object Oriented Portal System. Though started as a portal system, XOOPS is in fact striving steadily on the track of Content Management System. It can serve as a web framework for use by small, medium and large sites.

Zikula is a Web Application Toolkit, which allows you to run impressive websites and build powerful online applications. Zikula has received praise for many things, but we belive the highlights are ease of use, quick and easy development, security and performance and lastly flexibility.

Open Real Estate is a free software for building websites of real estate agencies and realtors. It is based on Yii CMF - one of the fast working modern frameworks. Open Real Estate is a ready-to-use business solution. It can increase the profits of the real estate agency and the real estate agents as well.

Drupal is an open-source platform and content management system for building dynamic web sites offering a broad range of features and services including user administration, publishing workflow, discussion capabilities, news aggregation, metadata functionalities using controlled vocabularies and XML publishing for content sharing purposes.

Website Baker is a PHP-based Content Management System (CMS) designed with one goal in mind: to enable its users to produce websites with ease.

PHP-Nuke is a web-based automated news publishing and content management system based on PHP and MySQL. The system is fully controlled using a web-based user interface. PHP-Nuke was originally a fork of the Thatware news portal system.

ocPortal is the website Content Management System (a CMS) for building and maintaining a dynamic website. ocPortal's powerful feature-set means there's always a way to accomplish your vision. Not only does ocPortal's CMS have all the features you'd expect: for instance photo galleries, news, file downloads and community forums/chats, but it does so whilst meeting the highest accessibility and professional standards. It is also smart enough to go beyond page management, to automatically handle search engine optimisation, and provide aggressive hack attack prevention.

TYPO3 is a free Open Source content management system for enterprise purposes on the web and in intranets. It offers full flexibility and extendability while featuring an accomplished set of ready-made interfaces, functions and modules.

Pligg is an open source Content Management System. Pligg CMS provides social networking software that encourages visitors to register on your website so that they can submit content and connect with other users. Our software creates websites where stories are created and voted on by members, not website editors.

PyroCMS is an open source, object oriented content management system built using PHP5 and CodeIgniter. PyroCMS is easy to use, looks great and uses some smart caching to keep everything running smoothly. It can be easily extended with Modules, Widgets, and Plugins which are easy to make; and it can be customized with Themes, which are basic HTML with a few tags in place.

Subrion is a stand-alone PHP content management system that is very easy to use. It comes with a ton of great features including full source editing, per-page permissions, user activity monitoring, and much more. Subrion CMS unites the functionality of articles script, auto classifieds script, realty classifieds script, web directory script, and yellow pages script all in one package.

Tiki is a CMS/Groupware which offers a large number of features "out-of-the-box" arguably more than any other Open Source Web Application. It can be overwhelming, even to an experienced user or administrator. Tiki has all the classic CMS and portal features of other applications, but also includes features not available anywhere else. Tiki is highly configurable and modular; all features are optional and can be administered through Tiki's browser-based interface.

Mambo is a full-featured, award-winning content management system that can be used for everything from simple websites to complex corporate applications. It is used all over the world to power government portals, corporate intranets and extranets, ecommerce sites, nonprofit outreach, schools, church, and community sites. Mambo's "power in simplicity" also makes it the CMS of choice for many small businesses and personal sites.

TYPO3 is a free Open Source content management system for enterprise purposes on the web and in intranets. It offers full flexibility and extendability while featuring an accomplished set of ready-made interfaces, functions and modules.

Contao is an open source content management system (CMS) for people who want a professional internet presence that is easy to maintain. The state-of-the-art structure of the system offers a high security standard and allows you to develop search engine friendly websites that are also accessible for people with disabilities. Furthermore, the system can be expanded flexibly and inexpensively.

Geeklog is a PHP/MySQL based application for managing dynamic web content. "Out of the box", it is a blog engine, or a CMS with support for comments, trackbacks, multiple syndication formats, spam protection, and all the other vital features of such a system.

SilverStripe CMS is an open source web content management system used by governments, businesses, and non-profit organisations around the world. It is a power tool for professional web development teams, and web content authors rave about how easy it is to use. As a platform, SilverStripe CMS is used to build websites, intranets, and web applications. The modern architecture of SilverStripe CMS allows organisations to keep pace with innovation on the web. SilverStripe CMS enables websites and applications to contain stunning design, great content, and compelling interactive and social functions.

sNews is a completely free, standards compliant, PHP and MySQL driven Content Management System. sNews is extremely lightweight, simple and customizable. It's easy to install, and easy to use via a simple web interface. sNews consists of only one core engine file, one independent template file and its accompanying CSS stylesheet file, plus an .htaccess file that makes all URLs search engine friendly.

jCore server is the core system on which you can build your jCore client sites. This is the system that contains all the libraries and/or modules you would use for your client sites.This way if there is a new release or an important bug fix you won't have to update all your sites one by one for each of your clients, just update jCore server and all your client sites will be updated at once.

ImpressPages CMS is user friendly software. Its tools enable user to manage the content of website in a convenient way. The advantage of ImpressPages is the opportunity to see how the website which is being edited will look like after the changes. All the information could be administered directly in the website. There is no need to perform monotonous lay-out tasks. Insertion of text, pictures, galleries and video is very simple.

Quick.CMS is comprehensive and easy to customize Content Management System helpfull in your web site management. This tool enables you to easily extend functionality and change layout of your website... and breath a sigh of relief.

ImpressCMS is a community developed Content Management System for easily building and maintaining a dynamic web site. Keep your web site up to date with this easy to use, secure and flexible system. It is the ideal tool for a wide range of users: from business to community users, from large enterprises to people who want a simple, easy to use blogging tool. ImpressCMS is a powerful system that gets outstanding results!

phpwcms is a robust and simple but yet powerful web based content management system running under PHP and MySQL. phpwcms is in use on thousands of websites all over the world. phpwcms is optimized for being fast and easy. phpwcms is perfect for professional, public and private users.

Monstra is a fast and small content management system written in PHP! Monstra is the best CMS to manage a small-business website. Monstra provides amazing api's for plugins, themes and core developers!

Silex is a free and open source software that allows to create Flash and Html websites directly in the browser without writing code. Defined as a CMS (Content Management System) it is used to assemble multimedia content and publish it. Key features are an WYSIWYG environment to edit a publication and a manager application to manage permissions and multiple publications settings.

Redaxscript is an ultra lightweight website engine, simplifying the world of complex online projects. Experience the future of web design and development - leave behind the confusion and build websites intuitively.

ProcessWire is a free PHP5 content management system and framework (open source CMS/CMF) built to save you time and work the way you do. ProcessWire gives simpler and stronger control over your pages, fields, templates and markup at any scale. And it provides a powerful template system that works the way you already do. ProcessWire’s jQuery-inspired API makes working with your content easy and enjoyable. Managing and developing a site in ProcessWire is shockingly simple–and fun–compared to what you may be used to.

SiteCake is a drag and drop CMS for simple websites. It lets you publish the content just by dragging it to your web page. It's CMS for static websites, with few pages only, to cover the niche below WordPress level of complexity. SiteCake was designed to be simple enough for a designer to integrate it on their own, without a need to hire a developer. SiteCake was designed to be simple enough for a site owner to change some text, swap some photos and add a video on their own, without a need to hire a web editor.

Sitemagic CMS is an amazing Content Management System that helps you build and maintain professional websites. Sitemagic CMS is a lightweight yet very capable Content Management System. Sitemagic CMS is super user friendly. Installation is easy as no database is required (but MySQL is supported for big websites). The administration menu provides easy access to all the built in functionality. Sitemagic CMS is super fast, super reliable, and super flexible, as you would expect from a professional Content Management System. Easily customize one of the 9 great looking design templates included using the built in CSS Designer.

Saurus is Free, Open Source Software for Building and Managing Websites. Saurus CMS ships with most common applications such as article list, blog, news with archive, forum and image gallery, packaged as content templates. In addition to the built-in content templates, site-specific custom applications can be developed using Saurus API.

Fork is an open source CMS that will rock your world. Fork CMS is dedicated to creating a user friendly environment to build, monitor and update your website. Fork takes great pride in being the Content Management System of choice for beginners and professionals.

Jamroom is a community content management system. It enables you to bring your entire community online to participate in your websites content creation. If you want to build an online community where everyone has their own identity then Jamroom can provide you with the tools to do it.

Mahara is an open source e-portfolio system with a flexible display framework. Mahara, meaning 'think' or 'thought' in Te Reo Māori, is user centred environment with a permissions framework that enables different views of an e-portfolio to be easily managed. Mahara also features a weblog, resume builder and social networking system, connecting users and creating online learner communities.

Pimcore is a powerful and robust Zend Framework based PHP content management system (WCMS) for creating and managing digital content and assets. Besides being a full-featured open-source WCMS system, pimcore is the first and premier PHP open source enterprise product information management framework (PIM) available.

Tiki is a CMS/Groupware which offers a large number of features "out-of-the-box" arguably more than any other Open Source Web Application. It can be overwhelming, even to an experienced user or administrator. Tiki has all the classic CMS and portal features of other applications, but also includes features not available anywhere else. Tiki is highly configurable and modular; all features are optional and can be administered through Tiki's browser-based interface.

Bolt is a tool for Content Management, which strives to be as simple and straightforward as possible. It is quick to set up, easy to configure, uses elegant templates, and above all: It's a joy to use. Bolt is created using modern open source libraries, and is best suited to build sites in HTML5 with modern markup. From a technical perspective: Bolt is written in PHP, and uses either SQLite, MySQL or PostgreSQL as a database. It's built upon the Silex framework together with a number of Symfony components and other libraries.

Pluck is your small and simple content management system, written in php. With pluck, you can easily manage your own website without knowledge of programming languages. Pluck focuses on ease of use and enables everyone to manage his own website. This makes pluck an excellent choice for every small website.

Tribiq CMS is a browser-based, multilingual content management system Tribiq CMS creates an intuitive and powerful interface for editing your content using any modern web browser.

razorCMS began as a databaseless flat file content management system, forked from a project called uCMS. It's structure allowed you to have just the amount of functionality you needed in a flat file CMS solution, adding extensions (blade packs) for further functionality, whilst allowing setup on simple servers with no database. razorCMS gave you base functionality required to run a website, add the extra functionality as you needed it via the blade pack management system. Everything from WYSIWYG editors to SEF URL was added as extra functionality.

SeoToaster CMS is the most advanced SEO & marketing website building & management system that can be used right out of the box, with no plug-ins required. SeoToaster combines in one package a full blown CMS, but also a private area membership system, a blog that complies with Google News & Yahoo News requirements, and a responsive mobile wireframe for building websites. SeoToaster CMS features a uniquely intuitive content management system interface, combined with powerful automated marketing such as web-to-call, automated SMS and email marketing.

BIGACE is a free and professional grade software package that allows you to set up your own website within minutes. Its powerful backend puts you in full control of the layout and content of your pages. And when you need more, you can choose from many Plugins and Themes to extend it. Bigace is designed to provide you with all the features you need from a CMS while having complete freedom to customize it the way you want.

Croogo is a free, open source, content management system for PHP. It is powered by CakePHP MVC framework.

Concrete5 makes running a website easy. Go to any page in your site, and a editing toolbar gives you all the controls you need to update your website. No intimidating manuals, no complicated administration interfaces - just point and click.