BlueGriffon

BlueGriffon is an open-source HTML editor for creating and editing attractive websites using a What You See Is What You Get, or WYSIWYG, interface. It is powered by the Mozilla Firefox rendering engine, so you can be sure that the web pages you create will meet established web standards such as HTML 5, CSS 3, SVG, and MathML. BlueGriffon provides a solution for web developers who want a user-friendly, extensible, and up-to-date content editor.