Medusa vs Saleor vs Commerce Layer: Open Headless Platforms

Medusa, Saleor, and Commerce Layer are the three most credible open, API-first commerce platforms for teams building a custom storefront instead of buying a themeable one. Medusa is a Node/TypeScript backend with a modular, plugin-friendly architecture that pairs naturally with Next.js and React. Saleor is a Python/Django platform built GraphQL-first from day one, with a more opinionated data model and a mature admin dashboard. Commerce Layer is the outlier: a headless-only "commerce API layer" with no storefront rendering opinions at all, designed to sit behind an existing CMS, marketing site, or even a Shopify frontend. If your team ships TypeScript, start with Medusa. If you want GraphQL and a polished out-of-the-box admin, look at Saleor. If you already have a frontend and just need commerce primitives bolted underneath it, Commerce Layer is worth a serious look.

This comparison is aimed at developers and technical decision-makers evaluating headless commerce for a real build — not a marketing bake-off. We will walk through architecture, data model philosophy, extensibility, hosting and ops burden, and where each platform tends to win or lose in practice. We will also be direct about the tradeoffs of headless commerce generally, because "headless" is not automatically the right choice for every store.

What "Headless Commerce" Actually Buys You

Headless commerce separates the commerce backend — products, carts, orders, payments, inventory, promotions — from the frontend that renders it. Instead of a theme templating language constrained by a hosted platform, you get a commerce API (usually REST and/or GraphQL) and build the storefront in whatever framework you want, most commonly Next.js, Remix, Nuxt, or SvelteKit. The appeal is real: full control over markup and performance, the ability to compose commerce with content from a CMS, and freedom from a platform's release cycle and theme constraints.

The cost is also real. You are trading a turnkey admin, checkout, and theme ecosystem for engineering ownership of the entire frontend, plus the operational burden of running (or paying to host) the backend itself. For a small store that just needs to sell products with minimal customization, a hosted Shopify theme is still the faster, cheaper, lower-risk path — our own Shopify theme catalog exists because that path is genuinely the right answer for a large share of merchants. Headless makes sense when the storefront experience itself is a competitive differentiator: complex configurators, content-heavy commerce, multi-brand or multi-region catalogs, or performance requirements a themed platform can't hit.

Medusa: A Node/TypeScript Commerce Engine Built to Be Extended

Medusa is written in TypeScript on Node.js, structured as a set of modules — product, cart, order, payment, fulfillment, pricing, promotion, and more — that can be swapped, extended, or run independently. Under the hood it's built on MikroORM against Postgres, with a workflow engine for composing multi-step commerce operations (like "reserve inventory, then create a payment session, then place the order") in a way that stays testable and resumable rather than one giant service function.

The single biggest reason teams pick Medusa is language alignment. If your storefront is Next.js or Remix, your backend, your frontend, and your admin customizations are all TypeScript. There's no context switch, no second type system to keep in sync, and no GraphQL schema to codegen against if you'd rather just call a typed REST client. Medusa ships an admin dashboard (also React/TypeScript) that you can extend with custom widgets and routes using the same component patterns as the rest of the stack, which matters a lot when a client wants a bespoke admin view for, say, a custom subscription or B2B quoting flow.

Where Medusa is strong

• Single-language stack for teams already committed to TypeScript end to end — backend logic, admin customizations, and storefront all share types.
• Modular architecture that genuinely supports swapping a module (say, a different payment provider or a custom pricing module) without forking the whole platform.
• Self-hosted by default, so there's no per-order or per-GMV platform fee — you pay for your own infrastructure and, optionally, Medusa's managed cloud offering.
• Fast-growing plugin and integration ecosystem for payments (Stripe first-class), search (MeiliSearch, Algolia), and fulfillment providers.

Where Medusa asks more of you

Medusa is younger and less battle-tested at extreme scale than Saleor or the big proprietary platforms, and its module system, while powerful, has a real learning curve — you're learning Medusa's own conventions for workflows, modules, and links between them, not just generic Express routes. Multi-region and multi-currency setups, tax logic, and complex promotion rules are all achievable but require reading the documentation carefully rather than assuming e-commerce-101 defaults will just work. Teams evaluating Medusa for a production build should budget real time for understanding the module and workflow model before writing storefront code against it — see our Medusa engineering notes for the kind of practical gotchas that show up once you're past the tutorial.

Saleor: GraphQL-First, Python/Django Under the Hood

Saleor takes a different foundational bet: GraphQL as the only real API surface (there is no equivalent first-class REST API), built on Python and Django. For teams that already think in GraphQL — typed queries, fragments, a single endpoint, strong tooling for codegen — Saleor feels native in a way that bolting GraphQL onto a REST-first platform never quite does. Its data model is comprehensive out of the box: multi-channel and multi-currency support, a permission and staff-role system, webhooks for nearly every domain event, and a well-designed admin dashboard (Saleor Dashboard) that a lot of teams end up using with minimal customization.

Saleor's channel model deserves a specific mention because it's one of its most useful architectural ideas: a "channel" bundles together a currency, a set of warehouses, and a set of available products and prices, so a single Saleor instance can genuinely run multiple storefronts, regions, or B2B/B2C splits without duplicating catalog data. Medusa and Commerce Layer both support multi-region selling, but Saleor's channel abstraction is unusually clean if that's a core requirement from day one.

Where Saleor is strong

• GraphQL done properly, not retrofitted — schema, subscriptions, and tooling all assume GraphQL as the primary interface.
• Multi-channel/multi-region modeling that's genuinely first-class rather than an add-on.
• A strong, ready-to-use admin dashboard that many teams can adopt with light customization instead of building an admin from scratch.
• Mature webhook and app/plugin extension model for integrating external systems (ERPs, PIMs, tax engines) without core modifications.

Where Saleor asks more of you

The language split is the real tradeoff: your backend is Python/Django, your storefront is almost certainly a JavaScript/TypeScript framework, and any custom backend logic (a bespoke pricing rule, a new webhook handler) means your team needs Django comfort in addition to frontend skills. That's a non-issue for larger teams with distinct backend and frontend engineers, and a real friction point for a small team that wants one language across the stack. Saleor's own reference storefront and Cloud offering are polished, but if you're self-hosting, budget for the operational reality of a Django + PostgreSQL + Celery-style stack rather than a single Node process.

Commerce Layer: Commerce as an API Layer, Not a Platform

Commerce Layer is a meaningfully different product category from the other two, and it's worth understanding that distinction before comparing feature lists. Medusa and Saleor are commerce platforms — they own the product catalog, the order model, and (optionally) an admin UI. Commerce Layer is a commerce API layer: it deliberately does not try to be your CMS, your product catalog source of truth, or your storefront renderer. Instead it provides composable commerce primitives — SKUs, prices, inventory, carts, orders, payments, promotions — via API, designed to be layered underneath *any* existing frontend, including a marketing site built in a headless CMS, a Webflow or Framer site, or even an existing storefront that just needs commerce capability added.

This "MACH" (Microservices, API-first, Cloud-native, Headless) positioning makes Commerce Layer a strong fit for a specific scenario: a content-heavy site — editorial, brand, marketing — that wants to add "buy" buttons and real commerce without rebuilding the whole site around a commerce platform's data model. It's also the natural choice when a team is composing commerce from several best-of-breed services (a PIM for product data, a separate CMS for content, Commerce Layer for the transactional layer) rather than accepting one platform's opinionated bundle of catalog plus cart plus order plus admin.

Where Commerce Layer is strong

• True composability — it assumes you already have (or want) a separate product catalog/PIM and content source, and focuses purely on the transactional layer.
• Framework and CMS agnostic by design, since it has no rendering opinions whatsoever — pairs equally well with Next.js, a static site, or a no-code builder.
• Multi-market commerce primitives (markets, price lists, inventory models, tax calculators as pluggable integrations) built for organizations running many storefronts or regions from shared commerce infrastructure.
• Managed/hosted by default, which removes a category of ops work the self-hosted Medusa/Saleor path requires.

Where Commerce Layer asks more of you

Because it deliberately doesn't own a product catalog or admin UI in the way Medusa and Saleor do, you need another system for rich product content and merchandising, plus integration work to keep that system and Commerce Layer's SKU/price/inventory data in sync. It's the right tool when composability is the goal; it's the wrong tool if what you actually want is "one platform, one admin, done" — for that, Medusa or Saleor will get you there faster. Commerce Layer is also a commercial, hosted product rather than a project you self-host for free, which changes the pricing conversation compared with running open-source Medusa or Saleor on your own infrastructure.

Side-by-Side: The Practical Decision Factors

Feature checklists tend to converge for mature commerce platforms — nearly all of them can eventually do multi-currency, promotions, and subscriptions given enough integration work. The decision usually comes down to a handful of practical factors that matter more than a spec sheet.

• Team language. All-TypeScript teams gravitate to Medusa; teams comfortable spanning Python and JS, or who value GraphQL specifically, lean Saleor; teams who already have a frontend and a content system lean Commerce Layer.
• Where the source of truth for product data lives. If you want the commerce platform to own the catalog, pick Medusa or Saleor. If your catalog already lives in a PIM or CMS and commerce is an add-on capability, Commerce Layer's composable model fits better.
• Admin UI expectations. Saleor's dashboard is the most immediately usable out of the box; Medusa's admin is highly customizable if you're willing to build; Commerce Layer assumes you're building or buying an admin/back-office experience separately.
• Hosting appetite. Medusa and Saleor are open-source and self-hostable (with managed-cloud options); Commerce Layer is a hosted commercial product first. Decide how much infrastructure ownership your team actually wants.
• Multi-region/multi-channel needs from day one. Saleor's channels and Commerce Layer's markets are both purpose-built for this; Medusa supports it but it's a less central architectural concept.

Where the Storefront Layer Fits In

Whichever backend you choose, none of the three platforms ship a finished, production-ready storefront design — that part is still yours to build, and it's where a huge share of headless commerce projects lose time. This is exactly the gap between "the API works" and "the store is live," and it's worth designing for from day one rather than bolting design on at the end. Well-considered UI foundations — component hierarchies, product-detail and PDP patterns, checkout flow states — translate cleanly regardless of which commerce API sits behind them, which is why design systems built around real commerce UX patterns (our Figma UI kits take this approach for Shopify-style storefronts today) are worth studying even when your backend is Medusa, Saleor, or Commerce Layer rather than a themed platform.

As headless and AI-assisted design-to-code workflows mature, we expect the gap between "a Figma commerce design" and "a working Next.js storefront wired to a headless backend" to keep shrinking — tools like shadcn/ui's component-registry pattern and MCP-based design handoff are already pointing in that direction. That's a space we're actively watching and building toward, even though today our shipping products are Figma kits and Shopify OS 2.0 themes rather than a Next.js starter or component registry.

A Practical Recommendation

If you're a TypeScript-first team building a custom Next.js or Remix storefront and want one language across backend, admin customization, and frontend, start with Medusa. If you want GraphQL as a first-class citizen, a polished admin dashboard with minimal customization, and strong native multi-channel modeling, evaluate Saleor — especially if your team already has Python/Django capacity. If you already have a frontend, a CMS, or a PIM and just need commerce primitives (cart, checkout, inventory, pricing) layered underneath without adopting a full platform's data model, look at Commerce Layer. None of the three is "best" in the abstract; each is optimized for a different shape of team and a different amount of platform opinion you're willing to accept.

Frequently Asked Questions

Is Medusa a good Shopify replacement?

Medusa can replace Shopify for teams that want full control over the storefront and are comfortable owning backend hosting and ops. For merchants who want a fast, themeable, hosted setup without custom engineering, a Shopify theme remains the simpler path — see our Shopify themes for that route.

Does Saleor have a REST API, or is it GraphQL-only?

Saleor's primary and effectively only first-class API is GraphQL. There isn't an equivalent full REST API maintained alongside it, so teams that specifically want REST should weigh that before committing.

Can Commerce Layer be used without a separate CMS or PIM?

It can technically hold basic SKU and price data itself, but its design assumes richer product content — descriptions, images, merchandising — lives elsewhere. If you don't already have (or want) a separate content/catalog system, Medusa or Saleor's built-in catalog model will likely be less integration work.

Which of the three is easiest to self-host?

Medusa's Node/Postgres stack is generally the simplest single-process footprint to self-host for a small-to-mid team. Saleor's Django/Postgres/Celery stack has more moving parts. Commerce Layer isn't self-hosted at all — it's a managed commercial product, which some teams will actually prefer for exactly that reason.

Do these platforms support subscriptions and B2B pricing?

All three can support subscriptions and B2B/tiered pricing, but none ship it as a one-click feature — expect real implementation work using each platform's extension points (Medusa modules/workflows, Saleor apps/webhooks, Commerce Layer's price lists and market-scoped pricing) regardless of which you choose.