head to head · open source
mall vs faststream
mall has 84,792 GitHub stars, 29,827 forks, 15 open issues and last shipped 3 days ago. faststream has 5,343 stars, 394 forks, 100 open issues and last shipped today. mall leads on adoption by 1,487% (84,792 vs 5,343 stars). mall is written in Java under Apache-2.0; faststream is written in Python under Apache-2.0. mall has attracted 35% as many forks as stars, faststream 7%. faststream was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (rabbitmq, redis), 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
| mall | faststream | |
|---|---|---|
| GitHub stars | ★ 85K | ★ 5.3K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Python |
| Last push | 2026-09-15 | 2026-09-18 |
| Forks | ⑂ 30K | ⑂ 394 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick mall if
- You weight community size — 85K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick faststream if
- You want the faststream feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and faststream fits your workflow better
About mall
mall is a complete e commerce system built on Spring Boot and MyBatis, distributed as a Java project under the Apache 2.0 license. It ships two applications in one repository: a storefront system for shoppers and an administrative back office for operators. The storefront covers the home portal, product recommendation, product search, product display, shopping cart, order flow, member center, customer service, and help center. The back office covers product management, order management, member management, promotion management, operations management, content management, statistics reports, finance management, perm…
About faststream
FastStream is an asynchronous Python framework for event driven services that acts as a thin client for Kafka, RabbitMQ, NATS, Redis and MQTT, giving Python developers full access to native broker features alongside generated AsyncAPI documentation, in memory tests and observability out of the box.
read the full faststream overview →
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Frequently asked questions
Is mall or faststream more popular?
mall has 84,792 GitHub stars and faststream has 5,343. mall has the larger community by that measure.
Are mall and faststream free?
Both are open source. mall is licensed under Apache-2.0 and faststream under Apache-2.0. Neither carries a licence fee.
What is the difference between mall and faststream?
mall is written in Java and faststream in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, mall or faststream?
Choose mall if you want the larger community (84,792 stars) or its Apache-2.0 licence terms. Choose faststream if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.