Java Ecommerce Open Source Projects May 2026

: Focuses on "composable commerce," allowing technically skilled teams to build highly customized microservices architectures. 💻 Developer & Learning Projects

These are mature, feature-rich frameworks suitable for large businesses that need high scalability and deep customization.

: A backend-focused project that integrates Docker , Postgres , and Spring Data JPA for a modern, containerized deployment. 🛠 Tech Stack Comparison Broadleaf Shopizer Apache OFBiz Primary Framework Spring Boot Java Web Framework Best For Enterprise B2C/B2B Headless Commerce Full ERP/CRM Suite Architecture Modulith/Microservices Headless / API-first Modular Enterprise Database Agnostic (JPA/Hibernate) Relational + Elasticsearch Multi-database support Java eCommerce | Open-Source & API-First - Elastic Path java ecommerce open source projects

: Perfect for those focusing on backend development, this project provides a clean API for managing users, orders, and products using Spring Boot 3 .

: A 100% open-source and headless platform. It uses a modern stack including Spring Boot and Angular/React and is designed to be easily adaptable to changing commerce trends. 🛠 Tech Stack Comparison Broadleaf Shopizer Apache OFBiz

: One of the most popular Java choices, built on the Spring Framework . It supports complex B2C, B2B, and multi-site setups from a single administrative console.

Building a modern online store doesn't mean starting from scratch. Java remains a top-tier choice for e-commerce because of its massive ecosystem, stability, and enterprise-grade security. 🚀 Top Enterprise Platforms : One of the most popular Java choices,

If you are looking for a project to learn , Hibernate , or Microservices , these GitHub-based projects are excellent starting points.