RDoc

Lesson in the Ruby Roadmap · Stage 19: Concurrency

Last updated 14 September 2026

What is RDoc?

RDoc is a documentation generator for Ruby source code. It parses Ruby files and creates HTML or other formatted documentation based on comments and code structure. It's the standard tool for generating API documentation for Ruby projects, allowing developers to easily understand and use libraries and applications.

Study this in the interactive course See the whole Ruby roadmap

Free resources to learn RDoc

Official docsRDoc - Ruby Documentation System
Open sourcerdoc
VideoReading and using Ruby Documentation - Rdoc

RDoc: common questions

Can I learn RDoc in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain RDoc in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this RDoc tutorial for beginners?

It is lesson 101 of 102 in the free Ruby roadmap, in stage 19, Concurrency. If you are new to Ruby, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.