vtiger

vtiger CRM is an open-source, all-in-one CRM solution encompassing sales, marketing, and support functionalities. It is available in both self-hosted (free) and cloud-based commercial editions. It includes modules for contact management, lead scoring, email marketing, project management, and help desk ticketing. Its strength is providing a comprehensive feature set at a low cost, with the open-source version allowing for deep customization.

Target users are cost-conscious small to midsize businesses and IT departments comfortable with open-source software. Its score reflects its extensive feature set and value, though the open-source version requires technical expertise to deploy and maintain.