Base-X

BaseX is a native and light-weight XML database system, developed as a community project on GitHub. It is specialized in storing, querying, and visualizing large XML documents and collections. Base X is highly conformant with the W3C XPath and XQuery specifications, including the official Update and Full Text extensions. The index-driven full-text engine provides tokenization and stemming support for more than 20 languages, scoring, thesaurus and distance, wildcard, and fuzzy search.

An additional visual frontend (GUI) enables users to interactively search, explore and analyze their data, and evaluate keyword searches and XPath/XQuery expressions in realtime (i.e., while the user types).

Base X is platform-independent and distributed under the permissive BSD license. The project page is located at http://base x.org/.