Markdown by DaringFireball - Text-to-HTML conversion tool/syntax for web writers, by John Gruber
CKEditor - Real-time collaborative future-ready rich text editor
Minimalist Markdown Editor - This is the simplest and slickest Markdown editor.
Redactor Text Editor - WYSIWYG html editor.
HedgeDoc - HedgeDoc is one of the attractive markdown editors that entitles you to easily make bites, graphs, and presentations in no time and lets you export it to many cloud storage platforms like Google Drive, Dropbox so that your co-workers can instantly a…
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.