head to head · open source
QuestDB vs ioredis
QuestDB has 17,496 GitHub stars, 1,685 forks, 952 open issues and last shipped yesterday. ioredis has 15,355 stars, 1,272 forks, 202 open issues and last shipped yesterday. QuestDB leads on adoption by 14% (17,496 vs 15,355 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.
← all 20902 open source comparisons
Side by side
| QuestDB | ioredis | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 15K |
| License | Apache-2.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.7K | ⑂ 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
English 简体中文 QuestDB is the open source, low latency time series database on open formats. It ingests millions of events per second, computes on live data in milliseconds, and keeps years of history queryable. One SQL engine spans ingestion, stream processing, and tiered storage. The engine is zero GC Java with C++ and Rust on the hot paths. Data lives in memory mapped, time partitioned columns. Queries run across all cores with SIMD and JIT compiled filters. There are no third party dependencies on the data path. Storage is tiered: a parallel write ahead log, native columnar partitions, and Apache Parquet. In…
read the full QuestDB overview →
About ioredis
A robust, performance focused and full featured Redis client for Node.js. Supports Redis = 2.6.12. Completely compatible with Redis 7.x. ioredis is a stable project and maintenance is done on a best effort basis for relevant issues (contributions to ioredis will still be evaluated, reviewed, and merged when they benefit the project). For new projects, node redis is the recommended client library. node redis is the open source (MIT license) Redis JavaScript client library redesigned from the ground up and actively maintained. node redis supports new (hash field expiration) and future commands and the capabilities…
read the full ioredis overview →
More in Infrastructure & Operations
Related comparisons
More Databases projects
Compare either of these against the rest of the Databases field.
Frequently asked questions
Is QuestDB or ioredis more popular?
QuestDB has 17,496 GitHub stars and ioredis has 15,355. 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 (17,496 stars) or its Apache-2.0 licence terms. Choose ioredis if its feature set, stack or MIT licence fits better. Both are self-hostable.