juniorRuby on Rails

What is Ruby on Rails and why is it used?

Updated May 24, 2026

Short answer

Ruby on Rails is a full-stack web framework built on Ruby that follows MVC and convention over configuration.

Deep explanation

Rails provides built-in structure for web apps using MVC architecture. It reduces boilerplate via conventions like default folder structures and naming rules. It includes ORM (ActiveRecord), routing, and templating.

Real-world example

Used in startups like Shopify to rapidly build scalable web apps.

Common mistakes

  • Confusing Rails with Ruby
  • Rails is a framework, Ruby is a language.

Follow-up questions

  • What is MVC architecture?
  • Why is Rails called opinionated?

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