phpMyAdmin is a free and open source tool written in PHP intended to handle the administration of MySQL or MariaDB with the use of a web browser.

Xataface is an open source PHP framework for building PHP/MySQL applications.

Vertabelo is an online tool for database design.

Enhanced SQL Portal is a full featured MySQL database.

Holistics is a powerful BI platform that empowers analysts with SQL to build a data warehouse and automated reporting routines that deliver data to everyone.