# PgCat

PostgreSQL pooler and proxy with sharding, load balancing, failover and mirroring support, written in Rust.


Source: https://findsoftware.frbit.cloud/pgcat/
Last reviewed: 2026-10-30
Listed since: 2026-10-30

## Record

### Links

- repository: https://github.com/postgresml/pgcat
- docs: https://github.com/postgresml/pgcat/blob/main/CONFIG.md
- discord: https://discord.gg/DmyJP3qJ7U

### Identity

- status: active
- maintainer: PgCat Contributors
- maintainerType: community
- parent: unknown
- firstRelease: 2022
- hqCountry: unknown

### Kind

- category: database
- hosting: binary
- language: rust
- runtime: binary
- runtimeMin: unknown
- basedOn: unknown

### Content

- contentStore: not applicable
- databases: postgres
- adminUi: not applicable
- headlessApi: not applicable
- templating: not applicable
- i18n: not applicable

### Rendering and deploy

- runsAs: always-on
- renderingModes: not applicable
- installMethod: docker image

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 1
- latestReleaseDate: 2024-08-30

### Adoption

- githubStargazers: 4025
- packagistDownloads: not applicable
- npmWeeklyDownloads: not applicable
- contributors: 55
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: unknown
- dependentPackages: unknown

### Sources

- urls: https://api.github.com/repos/postgresml/pgcat (read 2026-10-30)
- urls: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- maintainer: https://github.com/postgresml/pgcat/blob/main/LICENSE (read 2026-10-30)
- maintainerType: https://github.com/postgresml/pgcat/blob/main/LICENSE (read 2026-10-30)
- language: https://api.github.com/repos/postgresml/pgcat (read 2026-10-30)
- runtime: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- currentMajor: https://api.github.com/repos/postgresml/pgcat/releases/tags/v1.2.0 (read 2026-10-30)
- latestReleaseDate: https://api.github.com/repos/postgresml/pgcat/releases/tags/v1.2.0 (read 2026-10-30)
- firstRelease: https://api.github.com/repos/postgresml/pgcat/releases/tags/v0.1.0-alpha (read 2026-10-30)
- license: https://github.com/postgresml/pgcat/blob/main/LICENSE (read 2026-10-30)
- licenseModel: https://github.com/postgresml/pgcat/blob/main/LICENSE (read 2026-10-30)
- category: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- databases: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- runsAs: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- installMethod: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- installMethod: https://github.com/postgresml/pgcat/blob/main/README.md (read 2026-10-30)
- githubStargazers: https://api.github.com/repos/postgresml/pgcat (read 2026-10-30)
- contributors: https://api.github.com/repos/postgresml/pgcat/contributors?per_page=1 (read 2026-10-30)

## Notes

PgCat is a Rust pooler and proxy that sits between clients and PostgreSQL servers and adds sharding, load balancing, failover and mirroring. The README gives a Docker image and a build from source with Cargo as ways to run it, and it names PgBouncer as the pooler it resembles.

The README's deployment section sets the pooler to spawn four workers, a number that can be adjusted. Its configuration is described in [CONFIG.md](https://github.com/postgresml/pgcat/blob/main/CONFIG.md).

## Worth knowing

No separate project website is named, so the repository and its README are the project's own pages.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0