PostgreSQL is a powerful, open source object-relational database system.

experts Open Source

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

experts Open Source

MySQL and PostgreSQL-compatible relational database built for the cloud. Performance and availability of commercial-grade databases at 1/10th the cost.

experts

ERBuilder is a data modeling software that provides all the features you would expect from a professional database modeling tool such as reverse engineering, generating DDL scripts and databases, generating data, comparing models & databases and more.

nominated paid Free Trial $99.0 / Annually (There are 3 editions, Standard, Professional, and Enterprise.)