PsySH - A runtime developer console, interactive debugger and REPL for PHP.
Developerhub.io - All-in-One Platform for Online Documentation
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.
PortaCrypt - Create portable encrypted documents on your Mac
RunKit - RunKit notebooks are interactive javascript playgrounds connected to a complete node environment right in your browser. Every npm module pre-installed.
Documint for Stacker - Create documents from your data right in Stacker