Managing Backup Files
Plesk Control Panel

TwistPHP is an open-source web framework.

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.

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

Blog & CMS Platform.

Jasmine is an open source testing framework for JavaScript.

Composr is a very flexible CMS with advanced social, interactive and dynamic functionality.

FlatPress is a blogging engine that saves your posts as simple text files. Forget about SQL! You just need some PHP.

CSS Hosting on Linux Servers.

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

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

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.

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.

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.

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

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".

Private JVM hosting with pre-installed Tomcat server.

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