sysown/proxysql

Health v2 · maintenance only

Adoption not part of the score

6904 stars · 1086 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

ProxySQL is a high-performance, protocol-aware SQL proxy for MySQL, MariaDB, Percona Server, and PostgreSQL that sits between applications and database backends. It provides connection multiplexing, query routing, read/write splitting, sharding, query caching, failover detection, and a database firewall without requiring application changes.

Use cases

• load balance MySQL queries across replicas
• split reads and writes between primary and replica databases
• shard MySQL tables across multiple backends without changing application code
• cache frequent query results at the proxy layer
• detect backend failures and reroute traffic automatically
• protect databases from SQL injection with a firewall
• mirror production traffic for testing and performance analysis
• manage thousands of client connections with fewer backend connections

When to choose

• you need a mature, battle-tested SQL proxy with years of production use
• you run MySQL, MariaDB, Percona, or PostgreSQL and need transparent load balancing
• you want read/write splitting or sharding without modifying application code
• you need connection multiplexing to handle 100k+ client connections
• you require runtime reconfiguration of routing, users, and backends without restarts

When to avoid

• you need a proxy for databases other than MySQL or PostgreSQL
• you want a lightweight library to embed in your own application rather than a standalone service
• you run primarily on Windows or macOS as a native service
• you need a simple TCP-level proxy without SQL protocol awareness
• you require a permissive license - ProxySQL is GPL-3.0

Facets

application · maturity stable

proxy load-testing caching monitoring security routing database databases backend infrastructure-as-code performance security self-hosted cloud cpp mysql-proxy postgresql-proxy sql-load-balancing read-write-splitting database-sharding query-routing connection-pooling query-rewrite database-firewall sql-injection-protection failover high-availability query-mirroring connection-multiplexing query-cache prometheus-exporter rest-api web-ui galera-cluster mysql-group-replication amazon-aurora mariadb percona-server gpl-3.0 devops linux docker kubernetes

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