MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
4D - 4D is a relational database management system and IDE.
Brilliant Database - Create a personal or business desktop database fast and easily using this simple all-in-one database software. Free 30 day trial.
LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...
CouchBase - Document-Oriented NoSQL Database
ESM Tools - ESM Tools is a powerful and widely known software development platform that comes with a centralized model infrastructure, providing the common frame for compiling, running, downloading, and organizing models (ones or multiple).