Anyone who works with Ruby on Rails applications knows that, as a project grows, quickly understanding the relationships between models can become increasingly difficult.

Even when using traditional ERD ( Entity Relationship Diagram ) generation tools, there is usually some friction in the workflow: generating files, manually updating diagrams, or relying on external processes.

With that in mind, I created the Rails Realtime ERD gem.

What is Rails Realtime ERD?

rails-realtime-erd is a Ruby on Rails gem that allows you to visualize your schema ERD diagrams in real time directly inside your application .

The idea is simple:

Install the gem

Add it to your project

Open a route

See your diagram automatically updated

No manual image generation. No intermediate exports.…