Oracle SQL Developer is a free graphical tool for database development. With
SQL Developer, you can browse database objects, run SQL statements and SQL
scripts, and edit and debug PL/SQL statements. You can also run any number of
provided reports, as well as create and save your own. SQL Developer enhances
productivity and simplifies your database development tasks.

SQL Developer can connect to any Oracle Database version >= 9.2.0.1 and MySQL
database version >= 3.0.

WWW: https://www.oracle.com/database/technologies/appdev/sqldeveloper-landing.html