Fat Free CRM is an open source CRM software package built using Ruby on Rails. The code is available on Github for installation on a server. Fat Free CRM is built with the idea of clean code that is easily extensible by others. Available plugins extend its functionality and can provides extra features needed for project management. Fat Free CRM focuses on building leads and managing sales campaigns. It can handle multiple campaigns and multiple team members. It keeps track of tasks that each team member is handling as well as what leads they are working with. Opportunities for lead interaction are automatically updated and available to all team members. Fat Free CRM collects data for each lead. It's easy to include social media network accounts and other pertinent information about leads. A lead summary provides lead information at a glance and shows the lead's status in the sales funnel.