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PgBouncer vs Pgpool-II: catalog facts
PgBouncer	Pgpool-II
Free Free and open source under the ISC license.	Free The project describes itself as open source; its listed licenses are HPND and ISC.
Windows, macOS, Linux	Linux, Self-hosted
Pools PostgreSQL connections Provides configuration and usage documentation	Pools PostgreSQL connections Supports load balancing and high availability
Designed specifically for PostgreSQL	Requires PostgreSQL administration and cluster configuration
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: ISC	License: HPND AND ISC
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.