CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License.

SproutCore is an open-source JavaScript web framework.

Wakanda is a JavaScript platform to develop and run web or mobile apps.

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.

React (sometimes styled React.js or ReactJS) is a JavaScript library[2] for building user interfaces.

Xoops is an easy to use dynamic web content management system written in PHP.

Blosxom is a free-software weblog program (and simple content management system) written in Perl.

Rico 2.0 – open source JavaScript library for developing rich Internet applications (RIAs).

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.

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

Magnolia is an open-source digital business platform with a content management system (CMS) at its core.

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

Adult Java Hosting packages on Linux Servers.

OpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.

Private JVM hosting with pre-installed Tomcat server.

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

Hippo CMS is an open-source, dual licensed, Content Management System.