ERPNext
Full-featured open-source ERP — accounting, inventory, HR, CRM.
GPL-3.0 alternative to SAP and Odoo. Double-entry bookkeeping, batch tracking, BOM, payroll, and lead management. Python/React stack with MariaDB.
Apache OFBiz is itself a free, open-source ERP framework maintained under the Apache Software Foundation, covering accounting, CRM, manufacturing, and supply chain through a common Java-based architecture. It's open source already, so the comparison here is about ease of adoption: OFBiz is a developer-oriented framework meant to be extended and customized, not a ready-to-use business application out of the box.
If you want a more approachable, ready-to-run open-source ERP without needing Java development expertise to configure it, ERPNext is the more accessible comparison.
FAQ
Is there a free, open-source alternative to Apache OFBiz?
Apache OFBiz is already free and open source. If you want a more ready-to-use open-source ERP that requires less developer setup, ERPNext is a strong alternative.
What's the best open-source alternative to Apache OFBiz?
ERPNext is the better pick if you want a business-ready ERP out of the box rather than OFBiz's developer-oriented framework that typically needs custom implementation work.
What are the top open-source alternatives to Apache OFBiz?
Browse all open-source alternatives to Apache OFBiz above, or explore the full Business & Finance category for more options.