Devise is an authentication solution for Rails. It makes use of Warden which is Rack based authentication framework. Steps to integrate Devise: Include devise gem in your gemfile. gem "devise" Run bundle install to install it. Generally, all the login related details are kept in User model. You are free to use any model name as per your needs. Here User model is used as an example. Generate User model using devise generator command: rails generate devise User Above command will generate user model, migration for user and adds devise routes in _routes.rb_. Now you are all set to