CKEditor - Real-time collaborative future-ready rich text editor
Aloha Editor - Aloha Editor is an HTML5 WYSIWYG Editor that gives you a total new experience when editing.
SCEditor - A lightweight WYSIWYG BBCode & HTML editor
AlloyEditor - Modern WYSIWYG editor built with a sleek React UI on top of CKEditor
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
Trumbowyg - Feature-packed WYSIWYG editor in only 15kB of JavaScript