HeidiSQL!

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. MySQL Workbench is available on Windows, Linux and Mac OS.

DBeaver - Universal Database Manager and SQL Client. DBeaver is free and open source (GPL) universal database tool for developers and database administrators.

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.

Sequel Pro is a fast, easy-to-use Mac database management application for working with MySQL databases.

DataGrip is a database IDE from JetBrains that is tailored to suit specific needs of professional SQL developers and DBAs.

Valentina Studio is a free multi-connection Database Administration tool that allows you to connect to SQL Server, PostgreSQL, Valentina Server and mySQL and work with local database files of Valentina DB and SQLite.

dbForge Studio for MySQL is the universal MySQL and MariaDB front-end client for database management, administration and development. Devart's MySQL GUI tool provides utilities to compare, synchronize, and backup MySQL databases with scheduling, and gives possibility to analyze and report MySQL tables data. dbForge Studio for MySQL now works with any MariaDB database servers, and supports all MariaDB objects types. Everyone can visually design database structures, execute SQL queries and scripts, and manage MariaDB users and privileges. »

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. The application may be used on Linux, FreeBSD, Solaris, Mac OSX and Windows platforms to manage PostgreSQL 7.3 and above running on any platform, as well as commercial and derived versions of PostgreSQL such as Postgres Plus Advanced Server and Greenplum database.

SQL Server Management Studio (SSMS) is a tool included with Microsoft SQL Server for configuring, managing, and administering all components within Microsoft SQL Server. The tool includes both script editors and graphical tools which work with objects and features of the server.

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.

SQLyog MySQL GUI is the most powerful MySQL manager and admin tool, combining the features of MySQL Query Browser, Administrator, phpMyAdmin and various other MySQL Front Ends and MySQL clients in a single intuitive interface.

A simple and lightweight SQL client desktop/terminal with cross database and platform support.

Database .NET is an innovative, powerful and intuitive multiple database management tool.With it you can Browse objects, Design tables, Edit rows, Export data and run Queries with a consistent interface. A standalone tool that does not require installation.