KompoZer is a complete web authoring system that combines web file management and easy-to-use WYSIWYG web page editing.Discontinued
The project seems to be discontinued. Latest stable version, 0.7.10, was released on 2007 and last development version, 0.8b3, on 2010, but the program is still downloadable from the official website.
EZGenerator is a combination offline Website builder and online content management system. Create the structure of your website offline, add pages, blogs and other features then upload it and continue to edit ‘live’ content online.