MySQL Workbench is a unified visual tool for database architects, developers, and DBAs. MySQL Workbench provides data modeling, SQL development, and comprehensive administration tools for server configuration, user administration, and much more.
phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields.
DataGrip is a database IDE from JetBrains that is tailored to suit specific needs of professional SQL developers.
pgAdmin is the most popular and feature rich open source administration and development platform for PostgreSQL, the most advanced open source database in the world.
Sequel Pro is a fast, easy-to-use Mac database management application for working with MySQL databases.
No releases since 2016. Difficulty with newer OSes cause the app to crash when closing a connection.
Navicat is a database administration tool that allows you to simultaneously connect to MySQL, MariaDB, SQL Server, Oracle, PostgreSQL, and SQLite databases from a single application.
SQuirreL SQL is an open-source Java SQL Client program that will allow you to view the structure of a JDBC compliant database, browse the data in tables, issue SQL commands etc.
Sequel Ace is the "sequel" to longtime macOS tool Sequel Pro. Sequel Ace is a fast, easy-to-use Mac database management application for working with MySQL & MariaDB databases.
DbVisualizer is the Universal database tool for developers, analysts and DBAs. It runs on all major OS'es and connects to all major databases and JDBC drivers.