Erpag

Best Self Hosted Alternatives to Erpag

A curated collection of the 4 best self hosted alternatives to Erpag.

Cloud-based ERP/MRP for small and mid-size businesses that manages inventory, purchasing, sales, CRM, manufacturing/work orders and BOMs, serial/lot tracking, POS and accounting integrations (QuickBooks, Xero). Includes automation/low-code scripting, backups and user permissions.

Alternatives List

#1
InvenTree

InvenTree

InvenTree is an open-source inventory management system built on Python and Django, offering stock control, part tracking, BOM management, and a REST API with plugin extensibility.

InvenTree screenshot

InvenTree is an open-source inventory management system designed to provide robust stock control and comprehensive part tracking. It is built on Python and Django, offering a web-based admin interface and a REST API for integrations, with a plugin system for extensions.

Key Features

  • Core stock control and part tracking with BOM management
  • Web-based admin interface plus a REST API for integrations
  • Plugin architecture to add custom apps and extend capabilities
  • Mobile app support for on-the-go stock access
  • MIT-licensed, community-driven project with active development

Use Cases

  • Track inventory levels, manage part lifecycles, and handle stock movements in manufacturing, electronics, or spare-parts supply chains
  • Define Bills of Materials and manage assembly/production workflows via the built-in BOM tool and stock integration
  • Expose data to ERP, purchasing, or reporting systems through the REST API

Conclusion: InvenTree provides an open-source, extensible platform for organizations needing end-to-end inventory management, BOM control, and API-based integrations. It is actively developed by a global community and supports deployment across diverse environments.

6.2kstars
1.2kforks
#2
Foodsoft

Foodsoft

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

Foodsoft screenshot

Foodsoft is a web-based application designed to help non-profit food cooperatives manage catalog, orders, accounting and volunteer jobs. It provides tools for cooperative workflows where members order collectively and share operational responsibilities.

Key Features

  • Product catalog and price management with supplier/product records
  • Online ordering and order rounds with pickup scheduling
  • Basic bookkeeping and cooperative accounting tools for member accounts
  • Member management and role-based access for cooperative volunteers
  • Job scheduling and shift/packing assignment support for pickup days
  • Export/import and reporting features for bookkeeping and administration
  • Docker-friendly deployment and development tooling; organized for customization

Use Cases

  • Managing recurring group orders and coordinating member pickups for a volunteer-run food coop
  • Tracking member balances, invoices and simple cooperative accounting records
  • Scheduling volunteer shifts and assigning tasks for order packing and distribution

Limitations and Considerations

  • Customization and advanced features typically require familiarity with Ruby on Rails and system administration
  • Active development capacity has varied; contributors should check current community activity before expecting rapid upstream support

Foodsoft is practical for small-to-medium food cooperatives that need an integrated ordering, accounting and scheduling tool. It is extensible for groups willing to host and adapt a Rails-based system.

349stars
153forks
#3
Open QuarterMaster

Open QuarterMaster

Open QuarterMaster is a modular inventory management system with a core API, web-based admin UI, plugin architecture, and container-friendly deployment options.

Open QuarterMaster screenshot

Open QuarterMaster is an open-source inventory management system designed to be simple to use while remaining powerful and extensible. It centers on a Core API for generic inventory functions and a web-based Base Station frontend, with additional functionality provided by optional plugins.

Key Features

  • Modular architecture with a central Core API that handles inventory data and location management
  • Web-based Base Station frontend for browsing and managing inventory through a user interface
  • Plugin system to extend functionality for specific use cases (POS, hardware integrations, workflows)
  • Container-friendly design for flexible deployment across single-host, cloud, or small devices such as single-board computers
  • Focus on privacy: components do not phone home by default
  • Community-driven project with documentation, demo instance, and deployment guides for Debian-based hosts

Use Cases

  • Small businesses and makers tracking stock, parts, and supplies across locations
  • Labs, IT departments, or makerspaces managing assets, consumables, and equipment
  • Integrating inventory with point-of-sale, specialty hardware, or automation via plugins

Limitations and Considerations

  • Project is actively under development; documentation and feature completeness may vary between components
  • Some integrations and production deployments may require manual configuration and testing

Open QuarterMaster is aimed at organizations that want a flexible, extensible inventory platform they can host and adapt. Its modular core and plugin model make it suitable for a wide range of inventory workflows, from home collections to more complex operational environments.

51stars
11forks
#4
Tryton

Tryton

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

Tryton is an open-source, modular ERP platform designed to manage core business processes for companies of different sizes. It provides an integrated server and client ecosystem with a strong focus on scalability and access control.

Key Features

  • Financial accounting with configurable chart of accounts and transaction tracking
  • Sales workflow from quotations to orders and fulfillment
  • Inventory and stock management across warehouses (receipt to delivery)
  • Analytic accounting to break down costs and revenues by categories
  • CRM for managing leads and opportunities
  • Purchasing and requests for quotation to optimize procurement
  • Supply chain planning to replenish warehouses just in time
  • Manufacturing with bills of materials and routing
  • Shipping support for packaging and carrier workflows
  • Project management with profitability tracking and invoicing
  • Subscription management for recurring invoices
  • Integration options to automate communication with banks, carriers, and external systems

Use Cases

  • Running end-to-end operations for SMEs (accounting, sales, purchasing, inventory)
  • Managing manufacturing workflows with BOMs, routing, and stock movements
  • Automating recurring billing for service contracts and subscriptions

Tryton suits organizations that want a flexible ERP with a modular module ecosystem and integrated business domains. Its breadth of core modules makes it a solid foundation for building tailored business management solutions.

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