Quanta Plus
Quanta Plus, originally called Quanta, is a web Integrated development environment (IDE) for HTML, XHTML, CSS, XML, PHP and any other XML-based languages or scripting languages. Quanta was licensed under GPL before the release of version 2.0 final.
Quanta is capable of both WYSIWYG design and handcoding. It features tag completion on the fly, tag editing through a dialog interface, script language variable auto-completion, project management, live preview, PHP debugger, CVS support, Subversion support (through external plugin).
Quanta is not being actively developed anymore, but some of its features have been merged to its sister project KDevelop.
Features
Project management, including support for local and remote (through the network) projects. Project files can be uploaded to many servers using various protocols. CVS support is integrated, Subversion support is possible through external plugins. Advanced project features, like actions assigned to various project events and assigning roles in a team are also available.