Amazon RDS Alternatives

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

An enhanced, drop-in replacement for MySQL

Everything home service contractors need in one app.

Try for free freemium $29.0 / Monthly (PRO)

The world's most popular open source database

Microsoft Azure is an open, flexible, enterprise-grade cloud computing platform. Move faster, do more, and save money with IaaS + PaaS. Try for FREE.

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

open-source

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

open-source

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).

4D is a relational database management system and IDE.

IBM Informix is a secure embeddable database optimized for OLTP and IoT data. Informix can seamlessly integrate SQL, NoSQL/JSON, and time series and spatial data.

Heroku Postgres is an SQL database as a service.

See how Oracle Database 12c enables businesses to plug into the cloud and power the real-time enterprise.

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

Online Database Software. TeamDesk is a web-based database aimed to facilitate working with data, organize and store information you are using in your routine work, create an easily accessible data source for your team.

paid Free Trial $49.0 / Monthly (5 Users, Unlimited tables, records, storage space and support)