Crystal Book¶

Welcome to the documentation for the Crystal language.

Crystal is a language for humans and computers. These materials help humans understand the language and its ecosystem.

Learning Materials¶

These instructions and courses help you got get to know the language and how to use it.

Getting started ¶

Install Crystal and get it running.

Tutorials¶

Introductory courses for beginners and advanced learners.

Basics

Guides ¶

Detailed examples for practical applications.

Tools¶

Grow in Crystal¶

The core documentation of the Crystal language, standard library and tooling.

Language Reference ¶

Specification of the language.

Standard Library API ¶

Documentation of the standard library.

Shards¶

Discover the ecosystem of Crystal libraries.

Compiler Manual ¶

Instructions on how to use the compiler and tools.

Contribute¶

If you want to dive into development of Crystal, these materials give some guidance.

Contributing Instructions ¶

A guide on how to open issues and contribute code to the Crystal project.

Code of Conduct ¶

Our standards and expectations about working together as a community.

Crystal Book¶

Learning Materials¶

Getting started¶

Tutorials¶

Guides¶

Tools¶

Grow in Crystal¶

Language Reference¶

Standard Library API¶

Shards¶

Compiler Manual¶