Sequel Pro is a fast, easy-to-use Mac database management application for working with MySQL databases.
Open PostgreSQL Monitoring
Open PostgreSQL Monitoring is a free software designed to help you manage your PostgreSQL servers.
A cross-platform IDE that is aimed at DBAs and developers working with SQL databases.
Knex.js is a "batteries included" SQL query builder for Postgres, MySQL, MariaDB, SQLite3, and Oracle designed to be flexible, portable, and fun to use. It features both traditional node style callbacks as well as a promise interface for cleaner async flow control, a stream interface, full featured query and schema builders, transaction support (with savepoints), connection pooling and standardized responses between different query clients and dialects.
It enables a DBA, developer, or data architect to visually design, model, generate, and manage databases. It includes everything a data modeler needs for creating complex ER models, forward and reverse engineering, and also delivers key features for performing difficult change management and documentation tasks that normally require much time and effort.