Wikipedia - Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

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.

Kiwix - Kiwix enables you to have the whole Wikipedia at hand wherever you go!

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

Oppia - Oppia is a free, open-source learning platform.

MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.