Zend Framework (ZF) is an open source, object-oriented web application framework.

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Fat-Free Framework is an open-source web framework distributed under the GNU General Public License and hosted by GitHub and Sourceforge. The software seeks to combine a full featureset with a lightweight code base while being easy to learn, use and extend.

Mojito is an environment agnostic, MVC web application framework designed by Ric Allinson which supports agile development of web applications.

Unit testing framework for Javascript

Socket.IO is a JavaScript library for realtime web applications. It enables realtime, bi-directional communication between web clients and servers.

Saurus is Free, Open Source Software for Building and Managing Websites.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform written in Java.

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LogicalDOC is a free document management system that is designed to handle and share documents within an organization.

Liferay makes software that helps companies create digital experiences on web, mobile and connected devices.

OpenCms is an open source content management system written in Java.

Ametys is a free and open source content management system (CMS) written in Java.

SmartClient is set of mobile and cross-browser HTML5 UI components combined with a Java-based Ajax framework, created by Isomorphic Software to build business web applications.