dbForge SQL Complete is an add-in for SQL Server Management Studio and Visual Studio that speeds up SQL code writing, offers context-based smart suggestions, performs automatic formatting, refactoring and a lot of other things that save your time and effort in the database development process.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
ApexSQL Doc - ApexSQL Doc creates database documentation in a variety of formats.
phpMyAdmin - phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web.
DbSchema - DbSchema - Visual Database Design & Management Tool
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.