The best open source alternative to ERPNext is Odoo. If that doesn't suit you, we've compiled a ranked list of other open source ERPNext alternatives to help you find a suitable replacement. Other interesting open source alternative to ERPNext is Ever Gauzy.
ERPNext alternatives are mainly CRM Systems but may also be ERP Systems or HR Management Systems (HRMS). Browse these if you want a narrower list of alternatives or looking for a specific functionality of ERPNext.
Integrated suite of business apps covering accounting, CRM, inventory, eCommerce, HR, and project management, available free as Community or paid Enterprise edition.

Odoo is a modular business platform that brings together over 40,000 apps covering nearly every operational need: accounting, CRM, inventory, eCommerce, HR, manufacturing, point of sale, and project management. It's built for companies that want a single system instead of a patchwork of disconnected tools.
The core appeal is integration. Every app shares the same data layer, so information entered in one module flows automatically into others. An order placed through eCommerce updates inventory, triggers accounting entries, and feeds into reporting without manual intervention. That kind of native connection is what separates Odoo from bolting together separate SaaS products.
Two editions are available:
Key capabilities span the full ERP and operations spectrum:
Data ownership is a genuine differentiator. Odoo stores everything in PostgreSQL with no proprietary format, so you're never locked in. You can host on Odoo's infrastructure or run it on your own servers.
The platform also has AI features built across modules, handling tasks like document processing, data entry suggestions, and workflow automation. KPMG Belgium reported cutting accounting document processing time from two days to five hours after adopting it.
For teams comparing options, Odoo competes directly with tools like ERPNext on the open source side and serves as a practical Zoho alternative for businesses that want self-hosted control over a broad app suite.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Ever Gauzy Platform is a powerful open-source business management solution that combines multiple essential tools into one comprehensive package. This versatile platform integrates:
Key benefits:
Ever Gauzy Platform empowers businesses to operate more efficiently, make data-driven decisions, and foster better collaboration across departments. Whether you're a small team or a large corporation, this comprehensive solution provides the tools you need to succeed in today's competitive business landscape.