Waypoints

Gives you a visual map of your Rails' requests.

Add this line to your application's Gemfile:

group :development do
  gem 'waypoints'
end

And then execute:

$ bundle

Or install it yourself as:

$ gem install waypoints

Waypoints requires GraphViz to be installed. OSX users can install it via Homebrew:

$ brew install graphviz

The gem is available as open source under the terms of the MIT License.