WMD is a lightweight HTML editor which is ideal for blog comments, forum posts & basic content management.
It can be implemented into any textarea with one line of code & with an extra line, live preview functionality can be implemented.
This is not a WYSIWYG editor. Rather, it is a WYSIWYM Markdown editor (what you see Is what you mean).
WMD produces clean semantic HTML, leaving presentation details like fonts and colors up to style sheets.
Markdown: a simple markup language that’s as easy to read and write as plain-text email.
Compatibility: All Major Browsers