compare
QuestDB vs TDengine
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | QuestDB | TDengine |
|---|---|---|
| Language | Java | C |
| Licence | Apache-2.0 | AGPL-3.0 |
| Stars | 17k | 25k |
| Latest | 10.0.1 | ver-3.4.1.6 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 12 days between releases | about 28 days between releases |
| Active contributors | 18 commit authors on the default branch in the last 90 days | 28+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace InfluxDB. Alternatives to InfluxDB →
Full replacementQuestDBIngests the InfluxDB line protocol and is queried with SQL.
Full replacementTDengineTime series queried in SQL, with one table per device grouped under supertables.
QuestDB
- 10.0.12026-08-24QuestDB 10.0.1 is a maintenance release that builds on 10.0.0 with improvements across SQL, QWP, Live Views, DECIMAL, s…
- 10.0.02026-08-06QuestDB 10.0.0 is a major release, bringing three key new features into general availability, alongside a host of perfo…
- 9.4.32026-06-15QuestDB 9.4.3 brings some key bug-fixes, along with parquet-native tables and new parquet-querying performance enhancem…
- 9.4.22026-06-09QuestDB 9.4.2 is a hardening release that builds on 9.4.1, driven by continued fuzz testing and stricter query-result a…
- 9.4.12026-06-03QuestDB 9.4.1 is a hardening release that builds on 9.4.0. Introduction of our new SQL fuzz-testing engine and test fra…
TDengine
- ver-3.4.1.62026-04-303.4.1.6
- ver-3.4.1.02026-04-013.4.1.0
- ver-3.4.0.92026-03-023.4.0.9
- ver-3.4.0.22026-02-023.4.0.2
- ver-3.4.0.02026-01-083.4.0.0
QuestDB
unsigned The latest release, 10.0.1, carries no signature GitHub could verify.
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TDengine
unsigned The latest release, ver-3.4.1.6, carries no signature GitHub could verify.
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