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Open Source Kdb+ Alternatives

A curated collection of the 4 best open source alternatives to Kdb+.

The best open source alternative to Kdb+ is InfluxDB. If that does not suit you, we have compiled a ranked list of other open source Kdb+ alternatives to help you find a suitable replacement.

A curated collection of open source alternatives to Kdb+ for teams comparing software, self-hosted tools, and transparent product workflows.

Written by OpenAlternative Last updated: June 2, 2026
#1

InfluxDB

High-performance database optimized for collecting, storing, and analyzing time-stamped data in real-time across cloud, on-premises, or edge environme

High-performance database optimized for collecting, storing, and analyzing...

#2

TDengine

Purpose-built database for Industry 4.0 and IoT that enables real-time ingestion, storage, and analysis of massive sensor data with high compression

Purpose-built database for Industry 4.0 and IoT that enables real-time ing...

#3

Timescale

Extend PostgreSQL for time-series data with automatic partitioning, scalable ingestion, and advanced analytics for mission-critical applications.

Extend PostgreSQL for time-series data with automatic partitioning, scalab...

#4

QuestDB

Open-source time-series database offering massive ingestion throughput, millisecond queries, and SQL extensions, designed for optimal performance at a

Open-source time-series database offering massive ingestion throughput, mi...