Doxygen - Generate documentation from source code
Markdown by DaringFireball - Text-to-HTML conversion tool/syntax for web writers, by John Gruber
DocFX - A documentation generation tool for API reference and Markdown files!
Asciidoctor - In the spirit of free software, everyone is encouraged to help improve this project.
NDoc - NDoc generates class library documentation from .
pandoc - Pandoc is a Haskell library for converting from one markup format to another, and a command-line...