TinaCMS : Tina is an open-source site editing toolkit for React-based sites like Next.js & Gatsby to build content management directly into your website.
JS Bin : JS Bin is a tool for experimenting with web languages. In particular HTML, CSS and JavaScript, but JS Bin also supports other languages too (like Mark...
Firepad : Firepad is an open-source, collaborative code and text editor. It is designed to be embedded inside larger web applications.
EtherPad : Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js
MobWrite converts forms and web applications into collaborative environments. Create a simple single-user system, add one line of JavaScript, and instantly get a collaborative system.