Found 17 results for open source  
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 popular.
www.joomla.org
 1752    46     December 22, 2010    # Joomla # CMS # open source
Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.
netbeans.org
 1937    40     September 29, 2011    # programming # IDE # open source
Web software you can use to create a beautiful website or blog. The core software is built by hundreds of community volunteers, and when you’re ready for more there are thousands of plugins and themes available.
wordpress.org
 1490    39     December 6, 2010    # CMS # WordPress # open source
Use Drupal to build everything from personal blogs to enterprise applications. Thousands of add-on modules and designs let you build any site you can imagine.
drupal.org
 1547    38     December 6, 2010    # CMS # Drupal # open source
A full-featured open source solution designed for Ajax Push. It includes a Comet server and a Javascript framework. APE allows to implement any kind of real-time data streaming to a Web browser, without having to install anything on the client-side.
www.ape-project.org
 1729    36     March 28, 2012    # servers # Ajax # open source
A dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.
www.ruby-lang.org
 1224    35     May 21, 2011    # Ruby # open source # programming
A browser-based multilingual IMAP client with an application-like user interface. It provides full functionality as you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.
roundcube.net
 981    35     January 28, 2013    # email # script # open source
An open source Web framework that is optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.
rubyonrails.org
 1497    31     May 21, 2011    # open source # programming # Ruby
An open source programming language and environment for people who want to create images, animations and interactions. Interactive programs using 2D, 3D or PDF output, OpenGL integration for accelerated 3D, GNU/Linux, Mac OS X and Windows, and ...
processing.org
 990    21     January 28, 2011    # open source # programming
An open source app that empowers you to write new posts, edit content and manage comments with built-in notifications.
android.wordpress.org
 1279    20     July 29, 2011    # Android # WordPress # open source