PL/SQL Developer is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is DBeaver, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to PL/SQL Developer and 15 are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to PL/SQL Developer are DataGrip (Paid), Oracle SQL Developer (Free), SQuirreL SQL (Free, Open Source) and DbVisualizer (Freemium).
See your database in a new way. SeeQL is an easy-to-use desktop application that helps you visualize your database tables (including all foreign and primary key relationships), to quickly generate complex queries.
Open Sqlite databases and explore the internal organisation of various objects such as schema, tables and indices. To understand how Sqlite3 data is organised, please see [Database file format](https://www.sqlite.org/fileformat.html) from Sqlite website.
ORBADA is an excellent tool for database developers, SQL developers, DBA administrators, as well as for users who wish to broaden their knowledge and skills in SQL. Using JDBC libraries, Dedicated plug-ins Oracle, SQLite, Firebird, HSQLDB, DerbyDB.