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 4.7.2, 4.6.7, 4.5.12, 4.4.17 and 4.3.20 officially released

Released: 2026-06-04

Pgpool-II 4.7.2, 4.6.7, 4.5.12, 4.4.17, 4.3.20 officially released.

You can download them here.

4.7.2 release notes : English Japanese
4.6.7 release notes : English Japanese
4.5.12 release notes : English Japanese
4.4.17 release notes : English Japanese
4.3.20 release notes : English Japanese