Medusa vs Reaction Commerce
A side-by-side comparison of two self-hosted e-commerce platforms options — licensing, setup difficulty, resource needs, and what each one replaces.
Medusa
Composable commerce engine for developers
VS
Reaction Commerce
Headless GraphQL commerce microservices platform
| Feature | Medusa | Reaction Commerce |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 99 · Excellent | 58 · Fair |
| Category | E-commerce Platforms | E-commerce Platforms |
| License | MIT | Apache-2.0 |
| Language | TypeScript | JavaScript |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 2,048 MB |
| Deployment | docker, bare-metal, source | docker, kubernetes, source |
| GitHub stars | ★ 36,440 | ★ 12,401 |
| First released | 2021 | 2013 |
| Replaces | Shopify, commercetools | Shopify, commercetools |
What are Medusa and Reaction Commerce?
Medusa
Medusa is a headless, open-source commerce platform written in JavaScript. It provides modular building blocks for building custom online stores, marketplaces, and B2B commerce experiences with a powerful admin and API.
- Headless commerce architecture
- Modular plugin system
- Built-in admin dashboard
- Multi-region and multi-currency
Reaction Commerce
Reaction Commerce (Open Commerce) is an API-first, headless commerce platform built with Node.js and GraphQL. It uses a microservices architecture suited to flexible, custom storefront builds.
- GraphQL-first API
- Microservices architecture
- Real-time inventory
- Plugin-based extensibility
Medusa vs Reaction Commerce: key differences
Medusa is written in TypeScript, while Reaction Commerce is built with JavaScript. Licensing differs — MIT for Medusa versus Apache-2.0 for Reaction Commerce. Medusa is the lighter option, starting around 1,024 MB of RAM against 2,048 MB for Reaction Commerce. Reaction Commerce is the more established project (first released 2013), while Medusa arrived in 2021. Medusa has the considerably larger community, at 36,440 GitHub stars versus 12,401.
Why pick each one
Choose Medusa if…
- Highly customizable for developers
- Modern TypeScript codebase
Watch out for
- Requires development effort for storefront
- Less turnkey than hosted platforms
Choose Reaction Commerce if…
- Cloud-native design
- Highly scalable
Watch out for
- Complex to operate
- Development paused upstream
Frequently asked questions
Is Medusa or Reaction Commerce better?
Medusa is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Reaction Commerce if its specific feature set fits your needs better.
Are Medusa and Reaction Commerce free and open-source?
Yes. Medusa is licensed under MIT and Reaction Commerce under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Medusa and Reaction Commerce with Docker?
Medusa: yes. Reaction Commerce: yes.
Which is lighter on resources, Medusa or Reaction Commerce?
Medusa has the smaller minimum footprint at 1,024 MB of RAM, compared to about 2,048 MB for Reaction Commerce. Real-world usage depends on library size, user count, and enabled features.