BaseX is an open-source XML database management system and XQuery processor. It offers a comprehensive implementation of the W3C XQuery 3.1 specifications and supports large XML data sets, making it suitable for both local and web-based applications. Designed to be highly scalable, BaseX offers fast processing and sophisticated indexing mechanisms to handle complex queries with efficiency.Also encompassed in its feature set are RESTXQ and WebDAV, which facilitate RESTful API creation and remote access to databases respectively. In addition to its core functionalities, BaseX provides advanced query optimization, real-time visualization tools, and a flexible API that supports a wide range of programming languages. It is particularly favored for applications in academia, research, and anywhere efficient querying and management of XML data is crucial.