MedusaJS — Open-Source E-commerce for Modern Businesses
The open-source alternative to Shopify. Built on Node.js and TypeScript. Fully owned by you. We build MedusaJS stores with Next.js frontends and Sanity CMS — no platform fees, no vendor lock-in.
What we do
Open-source, fully owned
MedusaJS is MIT-licensed. Your commerce backend runs on your infrastructure. No per-transaction fees, no vendor roadmap dependencies, no data lock-in.
TypeScript-native
MedusaJS is written in TypeScript from the ground up. Your entire stack — backend, frontend, CMS types — shares one type system. Fewer bugs, safer refactoring.
Modular architecture
Replace or extend any module: payments, shipping, tax, notifications. MedusaJS plugin system lets you add custom commerce logic without forking the core.
Built for complex commerce
Multi-region, multi-currency, B2B pricing, marketplace logic, subscription billing. The patterns that break Shopify apps work natively in MedusaJS.
Our process
Evaluate
We assess whether MedusaJS is the right choice for your use case. If Shopify would serve you better, we say so. No wasted build time on the wrong platform.
Architecture
Define product data model, checkout flows, integration boundaries, content schemas, and deployment topology. Every API connection mapped before code is written.
Build
MedusaJS backend and Next.js storefront developed in parallel. Weekly demos on staging. Stripe payments integrated and tested against real order flows.
Integrate
ERP, shipping providers, email, inventory systems — connected and tested. Load testing before launch to verify the commerce backend handles your traffic.
Launch
Go live with monitoring, error tracking, and performance baselines. Retainer available for ongoing feature development and platform maintenance.
Frequently asked questions
MedusaJS is an open-source headless commerce engine built on Node.js and TypeScript. It provides the backend for e-commerce: products, carts, orders, payments, shipping, customers, and promotions — all accessible through REST and GraphQL APIs. Your frontend (we use Next.js) is a separate application that consumes these APIs. This separation means you can build any shopping experience without being constrained by themes or template systems.
Shopify is excellent for straightforward retail. Use MedusaJS when you need: custom checkout flows, B2B pricing tiers, marketplace features, multi-currency with real tax logic, or full control over your data and infrastructure. Also consider MedusaJS if platform fees are eating into your margins — MedusaJS is free, you only pay for hosting ($100-300/month typically). For stores under $500k annual revenue, Shopify is usually fine. Above that, MedusaJS starts making financial sense.
If you need to launch a simple store in two weeks with minimal budget, use Shopify. If you rely heavily on Shopify apps (loyalty programs, review widgets, specific marketing tools), the MedusaJS ecosystem is smaller — you will need to build or integrate those yourself. If you do not have development resources for ongoing maintenance, a managed platform is safer. We are honest about this: MedusaJS is powerful but requires development investment.
Commercetools is enterprise SaaS with enterprise pricing — typically $50k-$150k per year in licensing. MedusaJS is open-source with zero licensing costs. Both are API-first and headless. For mid-market companies ($1M-$50M revenue), MedusaJS delivers comparable architecture at a fraction of the cost. Commercetools has more pre-built enterprise connectors and compliance certifications. MedusaJS has a faster-growing community and lower total cost of ownership.
Yes. MedusaJS 2.0 is stable and used in production by hundreds of stores globally. The project is backed by a funded company, has an active open-source community, and releases regular updates. We have shipped production MedusaJS stores ourselves — including the Forge marketplace. The codebase is well-documented, the API is clean, and the module system is mature enough for complex commerce.
Yes. We migrate from Shopify, WooCommerce, and custom platforms. The process includes product and customer data migration, order history transfer, URL redirect mapping for SEO preservation, and a parallel-run period. Your existing store keeps running until the new one is verified. Zero downtime for your customers.
Ready to own your commerce platform?
Tell us what you sell and where the current platform limits you. We will scope a MedusaJS build and tell you honestly if it is the right fit.