head to head · open source
Medusa vs yas
Medusa has 37,059 GitHub stars, 5,487 forks, 194 open issues and last shipped yesterday. yas has 1,988 stars, 735 forks, 156 open issues and last shipped 5 months ago. Medusa leads on adoption by 1,764% (37,059 vs 1,988 stars). Medusa is written in TypeScript under a custom or non-standard licence; yas is written in Java under MIT. Medusa has attracted 15% as many forks as stars, yas 37%. Medusa was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ecommerce), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Medusa | yas | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 2.0K |
| License | Custom / other | MIT |
| Written in | TypeScript | Java |
| Last push | 2026-11-02 | 2026-06-12 |
| Forks | ⑂ 5.5K | ⑂ 735 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Medusa if
- You weight community size — 37K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick yas if
- You want the yas feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and yas fits your workflow better
About Medusa
Medusa Documentation Website Building blocks for digital commerce Getting Started The fastest way to get started is with Medusa Cloud. It provides a managed environment optimized for Medusa applications, with automated deployments, scaling, and maintenance. Get started on Medusa Cloud To set up a Medusa application locally, visit the Documentation. About Medusa Medusa is a commerce platform with a built in framework for customization that allows you to build custom commerce applications without reinventing core commerce logic. The framework and modules can be used to support advanced B2B or DTC commerce stores…
read the full Medusa overview →
About yas
YAS: Yet Another Shop YAS is a pet project aim to practice building a typical microservice application in Java Tentative technologies and frameworks Java 25 Spring Boot 4.0 Testcontainers Next.js Keycloak Kafka Elasticsearch K8s GitHub Actions SonarCloud OpenTelemetry Grafana, Loki, Prometheus, Tempo Local development architecture Getting started with Docker Compose 1. Get the latest source code 2. Add the following records to your host file: 3. Open terminal of your choice, go to yas directory, run docker compose up , wait for all the containers up and running Warning: To run all the containers, you need a…
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Frequently asked questions
Is Medusa or yas more popular?
Medusa has 37,059 GitHub stars and yas has 1,988. Medusa has the larger community by that measure.
Are Medusa and yas free?
Both are open source. Medusa has no licence declared in this registry, and yas is licensed under MIT. Both are free to self-host.
What is the difference between Medusa and yas?
Medusa is written in TypeScript and yas in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Medusa or yas?
Choose Medusa if you want the larger community (37,059 stars) or its Custom / other licence terms. Choose yas if its feature set, stack or MIT licence fits better. Both are self-hostable.