Vtiger

Vtiger is an open-source CRM handling the full customer lifecycle from contact through sales closure. It combines marketing automation, sales tools, and customer service features in one integrated platform. You can automate campaigns, manage pipelines, and track interactions without vendor lock-in.

Built for flexibility, Vtiger suits teams wanting to customize workflows to their needs. Its open-source nature lets you adapt as your business evolves and scales from small teams to larger organizations.