ProxySQL - ProxySQL: high-performance, GPL licensed MySQL proxy. It supports hundreds of thousands of concurrent connections and can be multiplexed to hundreds of servers.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Gonarch Tech - MySQL High Availability as a service
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
PostgREST - Automatic REST API for Any Postgres Database
Sequel Pro - MySQL database management for Mac OS X