7 self-hosted SAP S/4HANA Cloud alternatives

Odoo is a modular suite of web-based business apps, providing an open-source ERP with CRM, accounting, inventory, HR, eCommerce, website, and more.

54k stars33.5k forkslast commit 18 Aug 2026Actively maintained

Open-source ERP for SMBs with accounting, CRM, inventory, manufacturing, HR/payroll, projects, POS, and support in one integrated system.

38.5k stars12.6k forksGPL-3.0last commit 26 Aug 2026Actively maintained

Aureus ERP is an open-source, modular ERP platform built on Laravel for managing accounting, HR, CRM/sales, projects, inventory, and procurement.

11.8k stars545 forksMITlast commit 26 Aug 2026Actively maintained

Ever Gauzy is an open-source business management suite combining ERP, CRM, HRM/ATS, and project & time tracking with a web UI and headless APIs.

4.3k stars871 forksAGPL-3.0last commit 26 Aug 2026Actively maintained

Apache OFBiz is a Java-based open-source ERP and e-commerce framework providing modular apps for accounting, CRM, order management, inventory and manufacturing, plus developer APIs.

1.1k stars714 forksApache-2.0last commit 26 Aug 2026Actively maintained

Ruby on Rails app for managing food cooperatives: product catalog, online ordering, accounting, member and job scheduling.

357 stars159 forkslast commit 9 Aug 2026Actively maintained

Tryton is a modular, scalable open-source ERP platform covering accounting, sales, inventory, CRM, purchasing, manufacturing, projects, and subscriptions.

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