Sphinx is described as 'Tool that makes it easy to create intelligent and beautiful documentation, written by Georg Brandl and licensed under the BSD license' and is a documentation generator in the development category. There are more than 25 alternatives to Sphinx for a variety of platforms, including Linux, Mac, Self-Hosted, Windows and Web-based apps. The best Sphinx alternative is GitBook, which is free. Other great apps like Sphinx are Wiki.js, Quartz – Static Site Generator, MkDocs and Archivy.
Online reStructuredText and Sphinx editor with preview. Snippets are place to play and learn reStructuredText and Sphinx syntax. You write documentation in reStructuredText and Snippets render it with Sphinx.
