Doxygen

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...

Free Open Source Mac OS X Windows Linux Haiku

Slate API Docs Generator

Slate - beautiful static documentation for your API. Features Clean, intuitive design — With Slate, the description of your API is on the left side of your...

Free Open Source Mac OS X Linux Self-Hosted GitHub

Apiary

API DESIGN IS HARD Build beautiful APIs Collaborative design, instant API mock, generated documentation, integrated code samples, debugging and automated testing.

Commercial Web

RAML

RESTful API Modeling Language (RAML) is a human and machine-readable language for RESTful APIs to simplify the design process.

Free Open Source Self-Hosted

dAPI

It's not, well not compared to the original code it was ported from. The original API viewer is here (also, many thanks to wkeese for writing the dapi exporter for...

Free Open Source Self-Hosted

SwaggerGo

The simple way for share your interactive API documentation. SwaggerGo! is a zero configuration tool based on Swagger UI. Automatic CORS support, you don't need...

Free Personal Web

LDoc

ldoc is lua documentation generator intended to be compatible with luadoc and thus follows the pattern set by the various doc tools: --- summary ends with a period.

Free Open Source Windows Linux BSD

LuaDoc

luadoc is a documentation generator tool for lua source code.

Free Open Source Windows Linux BSD

MireDot

Miredot generates REST API documentation straight from your existing Java sources!.

Free Personal Mac OS X Windows Linux

Shins

shins (shins is not slate) is a port of slate api docs generator to javascript / node.js , beautiful static documentation for your api.

Free Open Source Mac OS X Windows Linux BSD

ReDoc

OpenAPI/Swagger-generated API Reference Documentation.

Free Open Source Web Self-Hosted