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.

My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.

LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...

PortaBase - PortaBase (portable database) is a program for conveniently managing one-table database files.

Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

EagleData - Freeware database for Mac