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Open-source warehouse management systems in 2026

7 open-source projects, ranked by GitHub stars and how recently each was worked on. Fleetbase leads with 4.5k stars, ahead of GreaterWMS. 4 had code pushed in the last three months. Most common licenses: Apache-2.0 (3), AGPL-3.0 (2) and EPL-1.0 (1). Commercial warehouse management systems are listed separately.

All open-source warehouse management systems, ranked

Complete systems you can adopt 7

  1. 1
    Fleetbase fleetbase

    Modular logistics and supply chain operating system (LSOS)

    Complete system Usable A courier, delivery or haulage operator wants to own its dispatch and tracking software instead of renting a TMS.

    ★ 4.5k AGPL-3.0 JavaScript Active, pushed 2 days ago
  2. 2
    GreaterWMS GreaterWMS

    This Inventory management system is the currently Ford Asia Pacific after-sales logistics warehousing supply chain process . After I leave Ford , I start this project . You can share your vacant warehouse space, use it for those in need, and generate income

    Complete system Usable A small or mid-size warehouse wants a customisable open-source WMS and can work with Chinese-language resources.

    ★ 4.4k Apache-2.0 Python Active, pushed 8 days ago
  3. 3
    Openship openshiporg

    multi-channel fulfillment at scale

    Complete system Usable A merchant or dropshipper fulfils through several suppliers or 3PLs and wants order routing it controls.

    ★ 1.7k AGPL-3.0 TypeScript Active, pushed 17 days ago
  4. 4
    OpenBoxes openboxes

    OpenBoxes is a warehouse management system designed to manage inventory and track stock movements for healthcare facilities.

    Complete system Production-ready A health facility, NGO or distributor needs stock tracking that works in low-resource settings.

    ★ 920 EPL-1.0 Groovy Active, pushed 4 days ago
  5. 5
    Org.openwms openwms

    Open Warehouse Management System

    Complete system Usable You are building warehouse automation software in Java and want an open WMS base.

    ★ 760 Apache-2.0 Java Slowing, pushed 4 months ago
  6. 6
    Open WES jingsewu

    🔥 Open WES is a customizable, open-source Warehouse Execution System designed to streamline warehouse operations. By integrating AI-driven optimization and a microservices architecture, Open WES delivers smarter, scalable, and future-ready solutions for modern supply chains. 🌟 Star to support our work!

    Complete system Experimental A warehouse with robots or conveyors needs an open task-orchestration layer between its WMS and the equipment, and has Java developers.

    ★ 302 MIT Java Slowing, pushed 5 months ago
  7. 7
    ModernWMS fjykTec

    The open source simple and complete warehouse management system is derived from our many years of experience in implementing erp projects. We stripped the original commercial system wms function and opened it up for free, hoping to help the majority of small and medium-sized enterprises. At present, the system supports cross-platform。

    Complete system Usable A small company needs basic warehouse management on Windows or Linux and has a .NET developer.

    ★ 1.8k Apache-2.0 Vue Quiet, pushed 17 months ago

Compared head to head

Also under inventory and warehouse management systems

Open-source licenses

  • Permissive: 4. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
  • Network copyleft: 2. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
  • Weak copyleft: 1. Changes to the licensed files must be shared, but you can link them into a closed program.

Languages

Java 2, JavaScript 1, Python 1, TypeScript 1, Groovy 1 and Vue 1.

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