PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
MySQL - The world's most popular open source database
LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
MariaDB - An enhanced, drop-in replacement for MySQL
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.