PgDog

Category

Developer Tools

Launched

July 15, 2026

Pricing

freemium

Founder

Lev Kokotov

Website

pgdog.dev

PgDog is an open source connection pooler, load balancer, and sharding proxy for PostgreSQL. It combines three database infrastructure tools into a single executable that can be deployed anywhere. As a connection pooler, it can share a few Postgres connections among over 100,000 clients without breaking session state features like SET commands, advisory locks, and LISTEN/NOTIFY. As a load balancer, it distributes read queries across replicas with health checks and automatic failover detection, supporting read/write splitting via a Postgres SQL parser. As a distributed database proxy, it enables horizontal sharding without requiring application changes: it extracts sharding keys from queries and routes them to the correct shard, supports cross shard transactions with two phase commit, replicated tables for local joins, and automatic big integer primary keys. It also handles DDL migrations across shards transparently.