rails_unused

Dead code analyzer for Ruby on Rails projects.
Simple CLI tool that finds unused controllers, models, and services in your Rails app.

Installation

Add to your Gemfile:

gem 'rails_unused'

Then execute:

bundle install

Or install directly:

gem install rails_unused

Usage

Inside your Rails project:

bundle exec rails_unused

Example output:

Possible unused controllers:
  - Admin::LegacyController

Possible unused models:
  - OldCustomer

Possible unused services:
  - User::CleanupService

How it works

Type	Search logic
Controllers	Checks if class name appears in config/routes.rb
Models	Checks if class name is referenced anywhere
Services	Checks if class name is referenced anywhere

Limitations

Simple static analysis.

False positives may happen if:

• Using metaprogramming
• Dynamic class loading
• External references

Always review before deleting.

Roadmap

See ROADMAP.md for future improvements.

Contributing

Pull requests are welcome!