Draft.js

Facebook (looks like mostly Isaac Salier-Hellendag) released what looks like a pretty sweet rich text editor written in React.

In the same vein:

• TinyMCE is the one that's been around forever.
• ProseMirror is the fairly new one from Marijn Haverbeke
• ZenPen is a super minimal one from Tim Holman
• There's been a bunch of attempts to replicate the Medium editor, like this.

If you don't care about visual as-you-type formatting very much (i.e. you just want a simple Markdown …

Draft.js is a post from CSS-Tricks