CiviCRM

CiviCRM is a web-based CRM used by a variety of organizations around the world. Organizations - regardless of their size, budget, or focus - can use the CRM system to engage their contacts and achieve their goals. CiviCRM was specifically developed for non-profit organizations and released under a free license. Users do not have to pay any license fees, regardless of the number of users or the amount of managed contacts, donations, etc.