DbNinja - Web-based application for secure and efficient management of MySQL database servers
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Adminer - Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
dbMonitor - dbMonitor performs per-component tracing of commit, rollback, SQL statement execute, creating/destroying components, connection pooling events, etc.
Sequel Pro - MySQL database management for Mac OS X