Ruby is... A dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. Download Ruby …

Ruby is a general-purpose programming language. It was designed with an emphasis on programming productivity and simplicity. In Ruby, everything is an object, including primitive …

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Sep 4, 2025 · Ruby is a popular backend programming language, widely used for building modern applications and services. It makes development faster, easier, and more productive …

What is a variable? Working with variables. That pesky newline! What is an array? What is a hash?

See the Installation page for details on building Ruby from source. If you have an issue compiling Ruby, consider using one of the third party tools mentioned above.

The Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries.

Ruby, as a language, has a few different implementations. This page has been discussing the reference implementation, in the community often referred to as MRI (“Matz’s Ruby …

Welcome to the official Ruby programming language documentation. New to Ruby? Start with our Getting Started Guide. Explore the essential classes and modules: String - Text manipulation …

Ruby 3.1 (End of Support 2025-04) Ruby 3.0 (End of Support 2024-04) Ruby 2.7 (End of Support 2023-04) Ruby 2.6 (End of Support 2022-04) Ruby 2.5 (End of Support 2021-04) Ruby 2.4 …