What are some alternatives?
Doxygen - Doxygen is a tool for generating documentation from annotated C++ sources, as well as other popular...
Slate API Docs Generator - Create beautiful, intelligent, responsive API documentation.
Sphinx Search - Sphinx is an open source full text search server, designed with performance, relevance (search quality), and integration simplicity in mind. Sphinx lets you either batch index and search data stored in files, an SQL database, NoSQL storage.
NDoc - NDoc generates class library documentation from .
Doc-O-Matic - Doc-O-Matic is a software source code documentation and Help authoring tool.
Natural Docs - Natural Docs is an open-source documentation generator for multiple programming languages.