EspoCRM

EspoCRM is a free, open source Customer Relationship Management platform that gives businesses full control over their sales processes, contact management, and customer data. Built with PHP and JavaScript, it runs entirely on your own infrastructure, making it an ideal alternative to cloud-locked CRMs like Salesforce, HubSpot, and Zoho CRM.

Key features include contact, lead, account, and opportunity management, email integration with a built-in email client and marketing campaigns, kanban boards and activity streams for pipeline visibility, calendar, tasks, and meeting scheduling, and a customer portal for external stakeholder access. The platform is highly customizable with custom fields, layouts, and entity types, and exposes a REST API for third-party integrations.

EspoCRM supports self-hosting via Docker or traditional LAMP stacks, giving teams data sovereignty without vendor lock-in. Unlike Salesforce complex pricing tiers or HubSpots restrictive free plan, EspoCRM is fully functional at no cost. A cloud-hosted option is available for those who prefer a managed setup.