Observable - Interactive code examples/posts

Deco IDE - Best IDE for building React Native apps

nbviewer.org - Rackspace server host Jupyter Notebooks from your github repo

YepCode - The automation & integration tool that loves source code. We help companies to improve their software development experience and solve real problems in a more agile and productive way.

Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.

Interview Sandbox - Write code, video chat, and draw in realtime with others.