Open Source Supply Chain Management
Supply chain software is mostly about visibility across boundaries you do not own - suppliers, carriers, and customers each holding a piece of the picture - so the hard part is integration, not the dashboard. The open source options here expose their data models and APIs, letting you wire purchase orders, shipments, and inventory positions to partner systems and your own ERP without waiting on a vendor's connector roadmap.
metasfresh
Free and open source ERP for industry and trade, with sales orders, invoicing, and a REST API
Fleetbase
Open-source logistics OS for fleet, freight, warehouse, routing, and order operations
ModernWMS
Open source warehouse management system for small and medium businesses, built with .NET 7 and Vue 3
Apache OFBiz
Java ERP system for automating enterprise processes, with apps for commerce, CRM, supply chain, and manufacturing
Axelor Open Suite
Full-web ERP suite with modular apps for CRM, finance, HR, projects, inventory, and production
ADempiere
Community-driven business suite covering ERP, CRM, manufacturing, supply chain, and POS
OpenBoxes
Open-source inventory and supply chain management for healthcare and warehouse operations
OpenWMS
Free, extensible warehouse management system with material flow control for automatic and manual warehouses
iDempiere
Community-driven ERP, CRM, and supply chain suite built on a modular OSGi architecture