Pgpool-II

Feature-rich, open-source middleware for PostgreSQL connection pooling, load balancing and high availability.
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100% Open Source

Fully open source, giving you complete control with no vendor lock-in.

Feature-rich

Offers connection pooling, load balancing and high availability.

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Getting Started

Set up your high-availability cluster step by step.

Latest News

Pgpool-II 4.7.1, 4.6.6, 4.5.11, 4.4.16 and 4.3.19 officially released

Released: 2026-02-26

Pgpool-II 4.7.1, 4.6.6, 4.5.11, 4.4.16, 4.3.19 officially released.

You can download them here.

4.7.1 release notes : English Japanese
4.6.6 release notes : English Japanese
4.5.11 release notes : English Japanese
4.4.16 release notes : English Japanese
4.3.19 release notes : English Japanese