PDF To HTML SDK allows developers to convert PDF to HTML preserving the layout without any additional software required. Extracts images and fonts from PDF. Provides .NET and ActiveX interface, 100% managed C# code.

Umbraco’s modern UI, pure .NET architecture, and active community make it the best choice for web CMS. Umbraco is easy to use, simple to extend, and integrates with existing systems.

Wakanda is an open source platform for building business web applications with nothing but JavaScript.

The XWiki project offers both a generic platform for developing collaborative applications using the wiki paradigm and products developed on top of it.

Free fully-automated installer/updater for software stacks of Subversion, Apache, and ViewVC fronted by a powerful web console for administration and server health check monitoring.

Phoca Gallery is a Joomla! gallery - image gallery for Joomla! CMS. It includes component, modules and plugins and allows users to display images or Youtube videos in many different styles.

ResourceSpace is an Open Source Digital Asset Management (DAM) system that offers considerable savings over proprietry systems.

Powerful Content-Management Framework based on open standards, powered by the ZEND Framework and by ExtJS.

Asbru Web Content Management is an enterprise-class, ready to use, full-featured, database-driven web content management system (CMS) for ASP, JSP and PHP.

concrete5 is an amazing way to manage the content on a website.

Nucleus allows you to easily maintain your own weblog(s) on your own server. It offers a system that is easy to install, but still offers maximum flexibility. (PHP4/MySQL)

Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a Free web application that educators can use to create effective online learning sites.

Magnolia CMS allows business users to confidently and easily enter, manage and publish content for the web and related channels.

e107 is a website content management system written in PHP and MySQL. It installs a completely dynamic website on your server allowing you complete control of your site from a secure and intuitive, yet powerful and flexible admin area.

Magnolia is an Open-Source CMS favored for its ease-of-use. It enables authors to lay out content exactly as it would appear to website visitors. It contains best-of-breed Java technology based on open standards to allow for tailor-made solutions.

BlueGriffon is a new WYSIWYG content editor for the World Wide Web. Powered by Gecko, the rendering engine of Firefox 4, it`s a modern and robust solution to edit Web pages in conformance to the latest Web Standards.

bitweaver is a unique, Open Source Web Application Framework and CMS. It has features such as complete modularity and is therefore one of the most flexible systems available.

Web 2.0 directory is a content management system (CMS) based on the architectural features of directory advertisement in e-bisness.

The central concept in Pier is the one of Structure. For example, the current page is a structure. The blog is also a structure, but it is slightly different than a page. A file is also a structure.

Zim is a notepad like desktop application that is inspired by the way people use wikis.

PHP-Fusion is written in PHP and MySQL and includes a simple, comprehensive administration system as well as Forum, Photogallery, Articles, FAQ and much more.

WordPress is a state-of-the-art publishing platform with a focus on aesthetics, web standards, and usability.

Free open source ERP, accounting, CRM package for small to midsized businesses. Runs on Linux, Mac, and Windows (built with open source Qt framework).

The open content management system for professional journalists. Features include multiple author management, issue-and-section based publishing, geolocation, multilingual content management, and a templating engine supporting HTML5 & mobile.

Croogo is a free, open source, content management system for PHP, released under The MIT License. It is powered by CakePHP MVC framework.

Zenphoto is an open source web gallery CMS with multimedia support and a news section (blog) and custom pages for running entire portofolio sites.

Tiki Wiki CMS Groupware -- A full-featured, open source, multilingual, all-in-one Wiki+CMS+Groupware written in PHP.

MapGuide Open Source is a web-based platform that enables users to develop and deploy web mapping applications and geospatial web services.

CodeIgniter is an Application Development Framework - a toolkit - for people who build web sites using PHP.

Tribiq Community CMS is an Open Source Multilingual Content Management System. You can download Tribiq Community CMS for free.