Open source Relational databases

MariaDB

MariaDB is a community developed branch of the MySQL database that uses the Maria engine by default. (GPL)

Linux - FreeBSD - Windows - macOS

MySQL

MySQL is a multithreaded, multi-user SQL database management system (DBMS). (GPL)

Linux - FreeBSD - Windows - macOS

PostgreSQL

PostgreSQL is a powerful, open source relational database system (BSD)

Linux - FreeBSD - Windows - macOS

SQLite

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. (Public domain)

Cross-platform

4 applications