pgAdmin - pgAdmin Website
PostgREST - Automatic REST API for Any Postgres Database
DBeaver - DBeaver - Universal Database Manager and SQL Client.
ProxySQL - ProxySQL: high-performance, GPL licensed MySQL proxy. It supports hundreds of thousands of concurrent connections and can be multiplexed to hundreds of servers.
Postico - A modern PostgreSQL client for OS X
GraphQL - GraphQL is a data query language and runtime to request and deliver data to mobile and web apps.