KompoZer is an Open Source, complete web authoring system that combines web
file management and easy-to-use WYSIWYG web page editing. KompoZer is
designed to be extremely easy to use, making it ideal for non-technical
computer users who want to create an attractive, professional-looking web
site without needing to know HTML or web coding. KompoZer is based on Gecko,
the layout engine inside Mozilla; it's a super-fast, very reliable, standards
conformant engine. (in Programming)