CodeIgniter is an open-source software rapid development web framework, for use in building dynamic web sites with PHP.

Symfony is a PHP web application framework and a set of reusable PHP components/libraries.

The Spry Framework is an open source Ajax framework developed by Adobe Systems which is used in the construction of Rich Internet applications.

Rialto (Rich Internet Application Toolkit) is a cross browser Ajax-based JavaScript widgets library.

Chaplin is an architecture for JavaScript applications using the Backbone.js library.

The PHP Smart.Framework (smart framework php) is a free, BSD licensed, open-source web framework that claims to fit small, medium as well as large web projects.

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

JSP Hosting on Linux Servers.

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.

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

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

Apache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".

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.

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