Ruby on Rails (RoR) is a powerful tool that helps make websites easier to build, especially for developers who work on both the front and back ends. Here’s how it helps:

1. Convention over Configuration: RoR has a smart way of doing things. It makes choices for you based on certain rules. This means developers spend less time setting up and more time writing actual code.

2. Active Record: This feature lets developers work with the database using simple Ruby code. For example, if you want to get a list of users, you can just use User.all. It makes working with data much easier.

3. Scaffolding: RoR can automatically create basic code for common tasks like adding, viewing, updating, or deleting information. This helps developers build new features more quickly.

4. Built-in Testing: RoR has tools that help test the code. This encourages developers to check their work as they go, which helps find and fix mistakes before the final product is ready.

Overall, these features make it quicker and simpler for developers to create strong and effective web applications.