BaseX is a very fast and strong, yet facile XML database system and XPath/XQuery processor, including highly conformant support for the latest W3C Update and Full Text Recommendations. A client/server architecture and a user-friendly frontend with various tree visualizations facilitate the processing of very large XML documents and collections. BaseX is an offspring of the DBIS Group at the University of Konstanz. It is Open Source and BSD-licensed, written in Java and runs out of the box.

BaseX Features:
1. Support of the W3C XQuery/XPath Full-Text 1.0 Candidate Recommendation.
2. BaseX offers the most complete implementation which is currently available.
3. High XQuery Conformance: reaching 99.9% of the W3C XQuery Test Suite.
4. Database storage with text, attribute and fulltext indexes.
5. API support: XQuery for Java (XQJ) and XML:DB (XAPI).
6. Interactive Visualizations, supporting very large XML instances.
7. XQuery Editor with syntax highlighting and error feedback.

Requirements:
* Java

The license of this software is Free, you can free download and free use this database management software.