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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.

Leafpub is an open source blogging platform with inline editing, handlebar templates, and a beautiful user interface.

WonderCMS is a completely free open source Content Management System, or in other words, a free website builder.

Twig.js is a pure JavaScript implementation of the Twig PHP templating language.

Javascript Hosting on Linux Servers.

JsPHP is a cross-browser JavaScript library designed to make the PHP application programming interface (API) available in JavaScript environments.

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.

Cappuccino is an open source application framework for developing applications that look and feel like the desktop software users are familiar with.

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

OpenWGA is Web Content Management computer software running on the Java Enterprise Edition Platform.

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

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

OpenCms is an open source content management system 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.

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

Java Hosting packages on Linux servers.

Google Web Toolkit, or GWT Web Toolkit, is an open source set of tools that allows web developers to create and maintain complex JavaScript front-end applications in Java.