head to head · open source
mall vs QuestDB
mall has 84,789 GitHub stars, 29,826 forks, 15 open issues and last shipped 3 days ago. QuestDB has 17,326 stars, 1,647 forks, 952 open issues and last shipped yesterday. mall leads on adoption by 389% (84,789 vs 17,326 stars). mall is written in Java under Apache-2.0; QuestDB is written in Java under Apache-2.0. mall has attracted 35% as many forks as stars, QuestDB 10%. QuestDB was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | QuestDB | |
|---|---|---|
| GitHub stars | ★ 85K | ★ 17K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Java |
| Last push | 2026-09-15 | 2026-09-17 |
| Forks | ⑂ 30K | ⑂ 1.6K |
| 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 QuestDB if
- You want the QuestDB feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and QuestDB 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 QuestDB
QuestDB open source time series database. Java, Apache 2.0, category Infrastructure & Operations / Databases. Lives in open source database ecosystem for massive data scale, low latency, real time analytics.
read the full QuestDB overview →
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Frequently asked questions
Is mall or QuestDB more popular?
mall has 84,789 GitHub stars and QuestDB has 17,326. mall has the larger community by that measure.
Are mall and QuestDB free?
Both are open source. mall is licensed under Apache-2.0 and QuestDB under Apache-2.0. Neither carries a licence fee.
What is the difference between mall and QuestDB?
mall is written in Java and QuestDB 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, mall or QuestDB?
Choose mall if you want the larger community (84,789 stars) or its Apache-2.0 licence terms. Choose QuestDB if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.