Medusa.js

Medusa.js is an open-source, headless commerce engine. It owns the commerce logic — carts, products, pricing, orders, payments and fulfilment — and exposes it through APIs, so the storefront, admin and integrations are built separately and fully under your control. Teams typically pair it with a Next.js storefront when an off-the-shelf SaaS platform can't model their products, pricing or operational flows the way the business actually works.

Medusa is open-source and self-hosted, so you own the code, your data and the roadmap, with no platform fees, per-order revenue share or app-store lock-in. Shopify is a hosted SaaS that gets you live faster and removes hosting and PCI overhead, but it constrains how far you can change the commerce model, checkout and back-office logic. Medusa is the better choice when deep customisation, complex catalogues or unusual operational rules are core to the business; Shopify wins when speed-to-launch and a managed platform matter more than control.

Pick Medusa when you want headless flexibility and full ownership but don't want to build commerce primitives — carts, taxes, payments, fulfilment — from scratch. WooCommerce is cheaper to stand up and has a huge plugin ecosystem, but it is tied to WordPress and gets brittle at scale or with bespoke logic; a fully custom build gives total freedom at the cost of much longer timelines and ongoing maintenance you own entirely. Medusa sits in the middle: a proven, extensible core you can shape without reinventing it. If you're unsure which way to go, our consultancy team can pressure-test the decision against your catalogue, volumes and roadmap before you commit.

Yes — B2B is one of Medusa's strongest use cases. Because every commerce module is extensible, it handles company accounts, multiple buyers per organisation, negotiated and tiered pricing, quotes, purchase orders and custom approval workflows natively, rather than through the plugins or workarounds a fixed SaaS platform forces on you. It also supports multi-region and multi-currency setups, which matters for selling across the UAE and wider GCC. The trade-off is that these flows are configured and built rather than toggled on, so a B2B project needs proper discovery up front.

Because Medusa is custom by nature, cost and timeline depend on the complexity of your catalogue, the integrations you need and how bespoke the commerce logic is. As a rough guide, a focused storefront with standard payments and fulfilment can launch in around 8–12 weeks, while larger B2B or multi-region builds with ERP and CRM integrations run longer and are best phased. There's no licence fee to budget for, but you should plan for hosting and ongoing engineering. We scope every web development engagement against a fixed discovery so the estimate reflects your actual requirements rather than a generic package.

Because Medusa is self-hosted, you own the infrastructure — typically a managed cloud host for the backend, a separate deploy for the storefront, plus a database and file/CDN layer. That ownership is the upside of going headless, but it does mean someone has to run it: apply updates, monitor performance and ship new features as the business grows. Karve can host and maintain the store for you under a support retainer, or hand over a documented, well-structured codebase so your in-house team can. Either way it's covered as part of our web development engagements, so there's no gap between launch and day-two operations.