SAP S/4HANA

Best Self Hosted Alternatives to SAP S/4HANA

A curated collection of the 2 best self hosted alternatives to SAP S/4HANA.

SAP S/4HANA is an enterprise resource planning (ERP) suite running on the SAP HANA in-memory platform, providing real-time analytics and integrated modules (finance, supply chain, manufacturing, sales) to streamline operations and support digital transformation.

Alternatives List

#1
Odoo

Odoo

Odoo is a modular ERP and business app suite covering CRM, sales, accounting, inventory, manufacturing, HR, eCommerce, and website building with a unified database and extensible framework.

Odoo screenshot

Odoo is a modular enterprise resource planning (ERP) platform that bundles a large suite of business applications (CRM, Sales, Accounting, Inventory, Manufacturing, HR, eCommerce, Website, and more) into a single system. It is designed around a unified data model so departments can share workflows, reporting, and automations across apps.

Key Features

  • Large catalog of installable business apps (CRM, Sales, Accounting/Invoicing, Inventory/WMS, MRP, Purchase, HR, Project, Helpdesk, Website/eCommerce)
  • Single database and integrated workflows across modules (e.g., sales → invoicing → delivery → accounting)
  • Highly extensible server framework with custom modules, views, and business logic
  • Built-in access control and multi-company support for managing multiple entities
  • Web client with responsive UI, dashboarding, and reporting across business data
  • Internationalization support (multi-language) and localization packages for many countries

Use Cases

  • Replace disconnected tools with one ERP for sales, invoicing, purchasing, inventory, and accounting
  • Run end-to-end operations for SMBs (quotations, orders, stock, manufacturing, shipping)
  • Build custom line-of-business apps on top of Odoo’s modular framework

Limitations and Considerations

  • Some advanced features and apps are only available in Odoo Enterprise; the GitHub repo is the Community edition codebase
  • Upgrades between major versions can require migration work, especially with custom modules

Odoo is a broad, integrated business platform that can scale from small companies to complex multi-company setups. Its modular architecture allows starting with a few apps and expanding into a full ERP as needs grow.

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31kforks
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#2
Dolibarr

Dolibarr

Dolibarr is a modular ERP/CRM for SMBs to manage sales, invoicing, inventory, projects, accounting, and more via a web interface with optional modules.

Dolibarr screenshot

Dolibarr is a modular web-based ERP and CRM designed for small and medium-sized businesses, freelancers, and associations. It provides core business management features (sales, invoicing, products, accounting, projects, etc.) and can be extended via optional modules.

Key Features

  • ERP + CRM in one application: leads/opportunities, customers, proposals/quotes, sales orders, and invoices
  • Product and service catalog with stock/inventory management and warehouses
  • Finance features including bank/cash management and expense tracking; accounting features available via modules
  • Project and task management with time tracking and simple collaboration features
  • Document generation (PDFs) for quotes/invoices and email sending from within the app
  • Modular architecture: enable only needed features; additional modules available from the ecosystem/marketplace
  • Multi-company (multi-entity) capability available via module, plus multi-currency and multi-language support
  • User/role permissions and auditability-oriented controls suitable for business workflows

Use Cases

  • Run a small business back office: CRM → quote → order → invoice → payment tracking
  • Manage products/services and stock across one or more warehouses while invoicing customers
  • Track projects, tasks, and time spent for service delivery and billable work

Limitations and Considerations

  • Depth and compliance-grade accounting features depend on configuration and optional modules; suitability varies by country
  • The large module ecosystem can require careful selection and administration to avoid feature overlap

Dolibarr is a strong fit when you want a single, lightweight web ERP/CRM that can be expanded gradually. Its modular approach makes it practical for organizations that prefer to start simple and add capabilities as processes mature.

6.8kstars
3.2kforks
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Why choose an open source alternative?

  • •Data ownership: Keep your data on your own servers
  • •No vendor lock-in: Freedom to switch or modify at any time
  • •Cost savings: Reduce or eliminate subscription fees
  • •Transparency: Audit the code and know exactly what's running