NVU – OpenSource Web Authoring System
The website www.nvu.com says
"Finally! A complete Web Authoring System for Linux Desktop users as well as Microsoft Windows and Macintosh users to rival programs like FrontPage and Dreamweaver. Nvu (pronounced N-view, for a "new view") makes managing a web site a snap. Now anyone can create web pages and manage a website with no technical expertise or knowledge of HTML."
I am using it to edit the pages in protocolanalyser.orgfree.com