Structure many real-time application concerns into channels over a single WebSocket connection.

Receive and process incoming emails in Rails applications.

Email on Rails. Compose, deliver, and test emails using the familiar controller/view pattern. First-class support for multipart email and attachments.

Web apps on Rails. Simple, battle-tested conventions for building and testing MVC web applications. Works with any Rack-compatible server.

Edit and display rich text in Rails applications.

Simple, battle-tested conventions and helpers for building web pages.

Declare job classes that can be run by a variety of queuing backends.

A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, serialization, internationalization, and testing.

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

Attach cloud and local files in Rails applications.

Ruby on Rails is a full-stack web framework optimized for programmer happiness and sustainable productivity. It encourages beautiful code by favoring convention over configuration.

Rails internals: application bootup, plugins, generators, and rake tasks.