head to head · open source
QuestDB vs ioredis
QuestDB has 17,326 GitHub stars, 1,647 forks, 952 open issues and last shipped yesterday. ioredis has 15,339 stars, 1,251 forks, 202 open issues and last shipped 4 days ago. QuestDB leads on adoption by 13% (17,326 vs 15,339 stars). QuestDB is written in Java under Apache-2.0; ioredis is written in TypeScript under MIT. QuestDB has attracted 10% as many forks as stars, ioredis 8%. 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
| QuestDB | ioredis | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 15K |
| License | Apache-2.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-09-17 | 2026-09-14 |
| Forks | ⑂ 1.6K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick QuestDB if
- You weight community size — 17K 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 ioredis if
- You want the ioredis feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ioredis fits your workflow better
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 →
About ioredis
ioredis is a robust, performance focused and full featured Redis client for Node.js, written entirely in TypeScript and released under the MIT licence, intended for Node.js developers and platform teams that need their applications to talk to Redis reliably.
read the full ioredis overview →
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Frequently asked questions
Is QuestDB or ioredis more popular?
QuestDB has 17,326 GitHub stars and ioredis has 15,339. QuestDB has the larger community by that measure.
Are QuestDB and ioredis free?
Both are open source. QuestDB is licensed under Apache-2.0 and ioredis under MIT. Neither carries a licence fee.
What is the difference between QuestDB and ioredis?
QuestDB is written in Java and ioredis in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, QuestDB or ioredis?
Choose QuestDB if you want the larger community (17,326 stars) or its Apache-2.0 licence terms. Choose ioredis if its feature set, stack or MIT licence fits better. Both are self-hostable.