Oct 28, 2025 · Everything you need. Rails is a full-stack framework. It ships with all the tools needed to build amazing web apps on both the front and back end.

1. Introduction Welcome to Ruby on Rails! In this guide, we'll walk through the core concepts of building web applications with Rails. You don't need any experience with Rails to follow along …

This guide describes how to debug Rails applications. It covers the different ways of achieving this and how to understand what is happening "behind the scenes" of your code.

Rails is a web application framework running on the Ruby programming language. If you have no prior experience with Ruby, you will find a very steep learning curve diving straight into Rails.

Dec 13, 2024 · We’ve released Ruby on Rails 2.3.6: six months of bug fixes, a handful of new features, and a strong bridge to Rails 3. We deprecated some obscure and ancient features...

Check the Ruby on Rails Guides Guidelines for style and conventions. If for whatever reason you spot something to fix but cannot patch it yourself, please open an issue.

This guide covers the configuration and initialization features available to Rails applications.After reading this guide, you will know: How to adjust the behavior of your Rails applications.

You should also first upgrade to Rails 8.0 in case you haven't and make sure your application still runs as expected before attempting an update to Rails 8.1. A list of things to watch out for …

Check the Ruby on Rails Guides Guidelines for style and conventions. If for whatever reason you spot something to fix but cannot patch it yourself, please open an issue.

Once an incoming request is matched to a controller by the router, Rails creates an instance of that controller class and calls the method with the same name as the action.