Managing Backup Files
Plesk Control Panel

Cascade Framework is a free CSS framework for creating websites and web apps.

HTMLy is an open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content.

Bolt is a tool for Content Management, which strives to be as simple and straightforward as possible.

Unit testing framework for Javascript

MooTools is a collection of JavaScript utilities designed for the intermediate to advanced JavaScript developer.

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.

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".

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

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.

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

XWiki is a free wiki software platform written in Java with a design emphasis on extensibility.

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

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