MariaDB is a popular, open source, and the community-based project developed by MySQL developers. It is a relational database management technology which provides the same features as MySQL. It is a new replacement for MySQL.
MariaDB turns data into structured wide array of applications, ranging from banking to websites. MariaDB is used because it is fast, scalable, and robust with a reach ecosystem of storage engine, plugin, and many other tools make it versatile for a wide variety of use cases.
The latest version of MariaDB (version 10.4) also includes GIS and JSON features.