Slate is a completely customizable framework for building rich text editors in the browser. You can think of it like a pluggable implementation of contenteditable, built with React and Immutable.

Slate was inspired by Draft.js and Prosemirror.

Principles
Examples

Principles

Built with React and Immutable for performant stateless re-rendering and developing ease.
Based on a nested, recursive tree model just like the DOM, so that complex components are possible.
Made with plugins as a first-class consideration, so that almost all the logic is customizable.
Doesn't bake any opinions about the schema being edited into the core library.

Examples

To get a sense for how Slate works, check out a few of the examples:

Rich Text
Plain Text
Auto-markdown
Links
Tables