CKEditor - Real-time collaborative future-ready rich text editor
BlueGriffon - An HTML editor based on Mozilla rendering engine.
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
Adobe Dreamweaver - Adobe Dreamweaver is a proprietary web development tool developed by Adobe Systems.
Trumbowyg - Feature-packed WYSIWYG editor in only 15kB of JavaScript
CoffeeCup HTML Editor - The CoffeeCup Free HTML Editor is a drag-and-drop HTML Editor with built-in FTP uploading.