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SproutCore is an open-source JavaScript web framework.

CSS Hosting on Linux Servers.

Grav is a Fast, Simple, and Flexible file-based Web-platform. Although Grav follows principles similar to other flat-file CMS platforms, it has a different design philosophy than most. The underlying architecture of Grav is built using well established and best-in-class technologies.

Nucleus CMS is a flexible and easy to install content management system, aka blog software. It helps you to publish a website and lets writers do what they are best at: writing items or articles, without having to worry about formatting and markup.

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.

FuelPHP is an open source web application framework written in PHP which implements the HMVC pattern.

Underscore.js is a JavaScript library which provides utility functions for common programming tasks.

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

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.

JSP Hosting on Linux Servers.

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

Tomcat Hosting on Linux Servers.

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

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

dotCMS is an open source content management system (CMS) written in Java for managing content and content driven sites and applications.

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.

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