Ruby on Rails model and controller UML class diagram generator. Originally based on the 'railroad' plugin and contributions of many others. (`brew install graphviz` before use!)
A Ruby gem that generates Mermaid class diagrams and ER diagrams from Rails applications, inspired by RailRoady
This gem uses RailRoady to generate class diagrams and then analyzes them to provide an assessment of SOLID principles.
Plantuml Ruby on Rails 3/4/5 model class diagram generator. Originally based on the 'preston/railroady' plugin and contributions of many others.