Substance - JavaScript library for web-based content editing

Substance is a JavaScript library for web-based content editing. It provides building blocks for realizing custom text editors and web-based publishing systems.

Read the introduction post, check the project website, the examples and the API documentation.

Substance Beta 4 introduces support for realtime collaboration. While still under development, you can already check out and run our full-stack collaborative Notepad application.

GITHUB: https://github.com/substance/substance
DEMO: http://substance.io/