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Screenshot BaseX 9.0.png
BaseX GUI showing an XML document in various visualizations
Original author(s)Christian Grün
Initial release2007
Stable release
9.6.3 / October 21, 2021; 41 days ago (2021-10-21)
Written inJava
PlatformJava SE
Available inEnglish, Dutch, French, German, Hungarian, Indonesian, Italian, Japanese, Mongolian, Romanian, Russian, Spanish[1]
TypeXML database

BaseX is a native and light-weight XML database management system and XQuery processor, developed as a community project on GitHub.[3] It is specialized in storing, querying, and visualizing large XML documents and collections.[4] BaseX is platform-independent and distributed under the BSD-3-Clause license.[2]

In contrast to other document-oriented databases, XML databases provide support for standardized query languages such as XPath and XQuery. BaseX is highly conformant to World Wide Web Consortium (W3C) specifications[5][6] and the official Update and Full Text extensions. The included GUI enables users to interactively search, explore and analyze their data, and evaluate XPath/XQuery expressions in realtime (i.e., while the user types).


Database layout[edit]

BaseX uses a tabular representation of XML tree structures to store XML documents. The database acts as a container for a single document or a collection of documents. The XPath Accelerator encoding scheme and Staircase Join Operator have been taken as inspiration for speeding up XPath location steps.[8] Additionally, BaseX provides several types of indices to improve the performance of path operations, attribute lookups, text comparisons and full-text searches.[9]


BaseX was started by Christian Grün at the University of Konstanz in 2005. In 2007, BaseX went open source and has been under the BSD-3-Clause license since then.[10][11]

Supported systems[edit]

The BaseX server is a pure Java 1.8 application and thus runs on any system that provides a suitable Java implementation. It has been tested on Windows, Mac OS X, Linux and OpenBSD.[12] In particular, packages are available for Debian[13] and Ubuntu.[14]

Further reading[edit]


  1. ^ "Translations - BaseX Documentation".
  2. ^ a b "BaseX Open Source". Retrieved 2021-06-28.
  3. ^ GitHub: BaseX
  4. ^ "Overview on database instances created with BaseX". Retrieved 30 June 2011.
  5. ^ "W3C: XQuery Test Suite Result Summary". World Wide Web Consortium. Retrieved 30 June 2011.
  6. ^ "W3C: XPath and XQuery Full Text 1.0 Test Suite Result Summary". World Wide Web Consortium. Retrieved 30 June 2011.
  7. ^ BaseX XQJ API
  8. ^ Christian Grün; Marc Kramis; Alexander Holupirek; Marc H. Scholl; Marcel Waldvogel (30 June 2006). "Pushing XPath accelerator to its limits" (PDF). Universität Konstanz. Archived from the original (PDF) on 27 September 2011. Retrieved 30 June 2011.
  9. ^ "Storing and Querying Large XML Instances" (PDF). Universität Konstanz. Archived from the original (PDF) on 9 October 2011. Retrieved 30 June 2011.
  10. ^ "BaseX 5.0: XML Database with Visual Frontend". Linux Magazine. Retrieved 30 June 2011.
  11. ^ "Open Source Kompetenzzentrum of the german Bundesverwaltungsamt" (in German). Archived from the original on 3 November 2011. Retrieved 30 June 2011.
  12. ^ "Startup - BaseX Documentation".
  13. ^ "Debian -- Package search results -- basex".
  14. ^ "basex package: Ubuntu".

External links[edit]