Valentina Studio - FREE native database manager for SQLite, MySQL, PostgreSQL, SQL Server and Valentina DB.
SQL Developer - Oracle SQL Developer is a free, development environment that simplifies the management of Oracle Database in both traditional and Cloud deployments.
phpMyAdmin - phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web.
Toad Edge - Windows GUI for MySQL. SQL Syntax Check. Freeware (Basic Features) & Payware (Extended Features).
Adminer - Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP.
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.