GitBook is a tool for building beautiful books using Git and Markdown. It can generate your book into multiple formats:



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 50 alternatives to Sphinx for a variety of platforms, including Linux, Self-Hosted, Mac, 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.
GitBook is a tool for building beautiful books using Git and Markdown. It can generate your book into multiple formats:



Write your content in the widely used and simple Markdown format, using the built-in visual editor. Unlike other wiki software that save content in a database with a difficult to extract format, Wiki.js saves all your content directly into Markdown (.

Quartz is a set of tools that helps you publish your digital garden and notes as a website for free. Quartz v4 features a from-the-ground rewrite focusing on end-user extensibility and ease-of-use.




MkDocs is static site generator that's geared towards building project documentation. Documentation source files are written in Markdown, and configured with a single YAML configuration file.

Doxygen is a tool for generating documentation from annotated C++ sources, as well as other popular programming languages like C, Objective-C, C#, PHP, Java, Python, IDL (CORBA, Microsoft, and UNO/OpenOffice flavors), Fortran, VHDL, Tcl, and to some extent D.


Simple, powerful, and fast. Meet the modern SSG framework you've always wanted.





Zensical is re-envisioning static site generation (SSG) from first principles – delivering a next-generation architecture that's built to be the last SSG you'll ever need. Designed for technical documentation, knowledge management, and professional blogs, Zensical...

Docsie is a multilingual documentation solution that reduces documentation time by 60% through features like collaborative editing, real-time updates, a searchable repository, interactive checklists, and AI-powered chatbots. It also enables automation, version control, media upload, and supports diverse languages.




The most powerful development environment – now adapted for writing documentation.


Read the Docs hosts documentation for the open source community. It supports Sphinx docs written with reStructuredText, and can pull from your Subversion, Bazaar, Git, and Mercurial repositories. The code is open source, and available on github.






ReadTheDocs (RTD) is a Sphinx-doc hosting site, not a docsite generator itself and therefore not an alternative. RTD is a great add-on to Sphinx use.