Fat Free CRM is an open source program with customizable CRM. This app can be used for team collaboration, campaign management and lead, contact list and opportunity tracking. Companies with different expectations and tasks can use this program. This program is based on the cloud and is easily available to you at any time and place. This program also has a free version. Features and facilities that this program offers are campaign management, contact database, lead absorption, lead distribution, lead management, lead breeding, lead qualification, lead segmentation, marketing automation, multi-campaign, task management. This program is easy to use and has advanced features. The calling module in this program contains information about the people with whom the organization is in contact, so that you can also follow your partners. The account module also contains customer accounts. In this module, an account is created when the prompt is converted to a customer. Another module that this program has and will help you a lot to manage employees is the task module. This module manages the tasks of the company and the tasks of employees. You can use this module to define tasks in the shortest possible time. The program also offers various plugins to add specific functions to the system.