Medusa.js is an open-source Node.js headless commerce framework. Instead of forcing business rules into a closed platform, Medusa gives you the code for complex B2B journeys, multi-catalog setups, dynamic pricing and ERP or PIM connectors.
Node.js
Next.js
PostgreSQLRedisArchitecture and operations
Medusa 2.0 rebuilds commerce around modules, workflows and an event bus. Product, customer, order or payment domains can be isolated, extended or replaced without rewriting the whole platform.
Workflows are the real accelerator. Business journeys such as B2B order validation, returns or marketplace splits are composed as testable transactional steps with compensation when something fails.
Shopify, Magento Cloud and BigCommerce share infrastructure and business constraints across many merchants. Deep customization can become a stack of third-party apps and workarounds.
Medusa puts the code back in your hands. You can patch the cart module, add a tax calculator, connect Akeneo or SAP and keep the business model explicit in versioned workflows.
Medusa runs on Node.js, PostgreSQL and Redis. The front end is free: Next.js, Remix, Hydrogen or even a mobile app can consume the same commerce APIs.
Official plugins cover payments, search, storage and email, and custom plugins are straightforward. Observability and deployment can follow standard Docker, cloud and OpenTelemetry patterns.
Why choose Medusa.js
Pricing rules, approval flows and advanced B2B journeys can be implemented exactly as the business requires.
Commerce modules, workflows, event bus and plugins make each component replaceable and testable.
ERP, PIM, CRM and OMS tools can be connected through APIs or events so catalog and order data stay synchronized.
No GMV commission and no app lock-in. Hosting can stay under your control and scale with actual business needs.
Use cases
Customer-specific catalogs, negotiated prices, tax rules and order approval chains are natural Medusa use cases.
Third-party sellers, commissions, payouts and validation workflows can be modeled without forking a closed SaaS.
When Shopify or Magento custom apps become hard to maintain, Medusa offers a cleaner foundation for the next stage.
Frequently asked questions
Shopify Plus is excellent for fast launches and standard B2C. Medusa fits complex B2B, custom business flows and code ownership.
A functional MVP can be delivered in 8 to 12 weeks. A full B2B platform with integrations usually takes 4 to 6 months.
Medusa is backed by its company and an active community. Smotly maintains client instances and contributes when useful.
Yes. Catalog, customers, orders and SEO redirects can be migrated in controlled batches without commercial interruption.
Audit your current platform, estimate a Medusa rebuild or compare Shopify and Medusa in a focused 30-minute session.
