Dolibarr

Dolibarr is a comprehensive open-source ERP and CRM platform that has been in active development since the early 2000s. It covers the full business lifecycle: contact and lead management, quotations, invoicing, order management, stock tracking, and project management — all in a single, modular web application.

The CRM component includes lead and opportunity tracking, contact history, email actions, and customer segmentation. Its modular architecture means you only activate the features you need, keeping the interface clean. It also supports REST APIs, a marketplace of community-contributed modules, and integrations with payment providers and shipping carriers.

Dolibarr is self-hostable on any LAMP/LEMP stack or via Docker and supports PostgreSQL and MySQL. It serves as a lightweight, all-in-one alternative to platforms like Salesforce, Zoho CRM, and HubSpot — particularly for SMEs and freelancers who want integrated ERP+CRM functionality without ongoing subscription costs.