Assembly Line

Open-source ERP frameworks in 2026

7 open-source projects, ranked by GitHub stars and how recently each was worked on. Frappe leads with 11k stars, ahead of Serenity. 7 had code pushed in the last three months. Most common licenses: MIT (3), Apache-2.0 (3) and LGPL-3.0 (1). Commercial ERP frameworks are listed separately.

All open-source ERP frameworks, ranked

Frameworks and platforms to build on 7

  1. 1
    Frappe frappe

    Low code web framework for real world applications, in Python and Javascript

    Framework or platform Production-ready You are building or extending a database-heavy business application, particularly anything in the ERPNext ecosystem.

    ★ 11k MIT Python Active, pushed 6 days ago
  2. 2
    Serenity serenity-is

    Business Apps Made Simple with Asp.Net Core MVC / TypeScript

    Framework or platform Production-ready A .NET team builds many CRUD-heavy line-of-business apps and wants code generation and a consistent stack.

    ★ 2.7k MIT C# Active, pushed yesterday
  3. 3
    Open Mercato open-mercato

    The AI-Engineering Foundation Framework for business apps: open-source TypeScript, with multi-tenancy, RBAC, events and domain modules already decided as conventions and specs, so Cursor, Claude Code and Codex build features instead of re-deciding architecture. Start with 80% done.

    Framework or platform Experimental You are building a custom business system with AI coding tools and want architecture decisions already made.

    ★ 1.9k MIT TypeScript Active, pushed today
  4. 4
    Ofbiz-framework apache

    Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

    Framework or platform Production-ready You have Java developers and want an Apache-licensed ERP base to customise heavily.

    ★ 1.1k Apache-2.0 Java Active, pushed yesterday
  5. 5
    IOTA-SDK iota-uz

    IOTA-SDK - is an open-source modular ERP. An alternative to SAP, Oracle, Odoo written in Go with modern look & feel

    Framework or platform Experimental You have Go developers and want an ERP base to build on rather than a ready product.

    ★ 476 Apache-2.0 Go Active, pushed today
  6. 6
    Hexya hexya-erp

    Hexya business application development framework

    Framework or platform Experimental A Go team wants to build Odoo-like business modules in a compiled, type-safe language.

    ★ 460 Apache-2.0 Go Active, pushed 43 days ago
  7. 7
    Platform lsfusion

    lsFusion is an extremely declarative open-source language-based platform for information systems development

    Framework or platform Usable You build data-heavy business systems such as ERP or retail back office and are open to a fundamentally different development model.

    ★ 214 LGPL-3.0 Java Active, pushed today

Open-source licenses

  • Permissive: 6. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
  • Weak copyleft: 1. Changes to the licensed files must be shared, but you can link them into a closed program.

Languages

Java 2, Go 2, Python 1, C# 1 and TypeScript 1.

Made software that belongs here? Add it. Listing is free.