GreptimeDB vs QuestDB

GreptimeDB vs QuestDB
Fact	GreptimeDB	QuestDB
Language	Rust	Java
Licence	Apache-2.0	Apache-2.0
Stars	6.7k	17k
Latest	v1.2.1	10.0.1
Last push	2026-10-05	2026-10-06
Release cadence	too few releases	about 12 days between releases
Active contributors	30+ commit authors on the default branch in the last 90 days	18 commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace InfluxDB. Alternatives to InfluxDB →
Full replacementGreptimeDBAccepts InfluxDB line protocol, queried with SQL or PromQL.
Full replacementQuestDBIngests the InfluxDB line protocol and is queried with SQL.

v1.4.0-nightly-202610052026-10-05Release v1.4.0-nightly-20261005pre-release
v1.3.0-beta.12026-09-29Release v1.3.0-beta.1pre-release
v1.3.0-alpha.1-3c0e2a8d5-20260928-17906392482026-09-29Release v1.3.0-alpha.1-3c0e2a8d5-20260928-1790639248pre-release
v1.2.12026-09-16Release v1.2.1
v1.2.02026-09-08Release v1.2.0

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…

unsigned The latest release, v1.2.1, carries no signature GitHub could verify.

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unsigned The latest release, 10.0.1, carries no signature GitHub could verify.

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