// the find
medusajs/medusa
The world's most flexible commerce platform.
Medusa is a headless commerce platform built in TypeScript/Node.js that gives you the commerce primitives (products, carts, orders, payments, promotions) as composable modules rather than a monolithic app. It's for teams who want Shopify-level feature coverage but need to own their stack — custom B2B flows, marketplaces, multi-tenant storefronts, or anything that would require hacking around a SaaS platform.
The module architecture is genuinely well thought-out: commerce concepts like pricing, inventory, and fulfillment are independently deployable modules with clean interfaces, not just namespaced classes in a monolith. The workflow engine (visible in the changeset history and architecture docs) lets you define multi-step business processes with built-in rollback — rare in commerce tooling. Active development with a high-throughput changeset pipeline and a large Discord community means you're unlikely to hit a dead-end bug with no path forward. The pgvector / search integration story is solid and the integration test suite covers the full API surface against real database state, not mocks.
The upgrade path is genuinely painful — Medusa 2.x was a near-complete rewrite that broke almost every plugin and custom module from v1, and the migration guide is long. The managed cloud offering (Medusa Cloud) is the path of least resistance, but that's a vendor dependency that didn't exist when most people chose this over Shopify. Self-hosting the full stack with Redis, Postgres, and worker processes is non-trivial and the ops documentation is thinner than the feature documentation. The admin UI is functional but clearly secondary — if your client-facing admin needs heavy customization, you're writing React against their component library from day one.