Ruby on Rails: Accelerate your agents with convention over configuration Rails World 2026 agenda is live. See who's speaking → Source Docs AI Community News Events Jobs Foundation Accelerate your agents with convention over configuration. Ruby on Rails scales from PROMPT to IPO. Token-efficient code that's easy for agents to write and beautiful for humans to review. Rails 8.1.3 &mdash; released March 24, 2026 You’re in good company. Over the past two decades, Rails has taken countless companies to millions of users and billions in market valuations. These are just a few of the big names. There have been many hundreds of thousands of apps created with Rails since its inception. Building it together. Over six thousand people have contributed code to Rails, and many more have served the community through evangelism, documentation, and bug reports. Join us! Meet the Rails team 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 with strong conventions that keep your agents from producing a huge, unmaintainable mess. Rendering HTML templates, updating databases, sending and receiving emails, maintaining live pages via WebSockets, enqueuing jobs for asynchronous work, storing uploads in the cloud, providing solid security protections for common attacks. Rails does it all and so much more. app/models/article.rb class Article < ApplicationRecord belongs_to :author, default: -> { Current.user } has_many :comments has_one_attached :cover_image has_rich_text :content, encrypted: true enum status: %i[ drafted published ] scope :recent, -> { order(created_at: :desc).limit(25) } after_save_commit :deliver_later, if: :published? def byline "Written by #{author.name} on #{created_at.to_s(:short)}" end def deliver_later Article::DeliveryJob.perform_later(self) end end Active Records make modeling easy. Databases come to life with business logic encapsulated in rich objects. Modeling associations between tables, providing callbacks when saved, encrypting sensitive data seamlessly, and expressing SQL queries beautifully. app/controllers/articles_controller.rb class ArticlesController < ApplicationController def index @articles = Article.recent end def show @article = Article.find(params[:id]) fresh_when etag: @article end def create article = Article.create!(article_params) redirect_to article end private def article_params params.expect(article: [ :title, :content ]) end end Action Controllers handle all requests. Controllers expose the domain model to the web, process incoming parameters, set caching headers, and render templates, responding with either HTML or JSON. app/views/articles/show.html.erb <h1><%= @article.title %></h1> <%= image_tag @article.cover_image.url %> <p><%= @article.content %></p> <%= link_to "Edit", edit_article_path(@article) if Current.user.admin? %> Action Views mix Ruby and HTML. Templates can use the full versatility of Ruby, excessive code is extracted into helpers, and the domain model is used directly and interwoven with the HTML. config/routes.rb Rails.application.routes.draw do resources :articles do # /articles, /articles/1 resources :comments # /articles/1/comments, /comments/1 end root to: "articles#index" # / end Action Dispatch routes URLs. Configure how URLs connect to the controllers using the routing domain language. Routes expose the bundle of actions that go together as a resource: index, show, new, create, edit, update, destroy. Optimized for happiness. Rails has united and cultivated a strong tribe around a wide set of heretical thoughts about the nature of programming and programmers. Understanding these thoughts will help you understand the design of the framework. Read the Rails Doctrine Let’s get started. Learning Read the guides Learn what the frameworks can do and how they fit together. Contributing Contribute on GitHub File bug reports and make pull-requests. Keeping up See what’s new The latest releases and updates on development. Learn more about Hotwire — the default front-end framework for Rails Stay up to date with Rails on X, YouTube, This Week in Rails, or the On Rails podcast. Merch Conduct Maintenance Security Trademarks License