Saxonica: Welcome

Developers of the Saxon processor for XSLT, XQuery, and XML Schema, including the only XSLT 3.0 conformant toolset.

Saxonica was founded by Dr Michael Kay in 2004. Over the years, we have delivered:

More than 170 software vendors have built Saxon into their own applications.

Microsoft, for example, has chosen Saxon to provide XSLT 3.0 capability within BizTalk Server 2020.

6 of the world's top 10 software vendors are Saxonica clients.

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Download Saxon products. Find out more about our range of software products. Buy Saxon licenses from our online store.

Due to the current Covid-19 pandemic, the Saxonica team are working from home. We are not picking up calls to the office phone number for now. Please use if you need to contact us.

Recent news

Latest announcements are listed below, for full history see News.

28 July 2022
Saxon 11.4 maintenance release for Java, .NET, and C/C++, PHP and Python.

10 June 2022
Michael Kay presented the paper Expression Elaboration at XML Prague 2022.

12 May 2022
SaxonJS 2.4 maintenance release for Node.js and browsers.

15 March 2022
Saxon 10.8 maintenance release for Java and .NET.

10 February 2022
The saxon-help mailing list at SourceForge is now closed. Please use forums on StackOverflow and the Saxonica community site instead.

2 February 2022
New Saxon licenses are now fixed-term rather than perpetual. See Saxon 11 licenses for details.

1 February 2022
Saxon 11.1 maintenance release for .NET, and first release for Java, and C/C++, PHP and Python.

17 January 2022
Michael Kay discussed the history and future of XSLT, the secrets of the Saxonica business, and software development in general, in a Shift-M podcast interview.

5 November 2021
Norm Tovey-Walsh presented Features of a modern XML Resolver at Declarative Amsterdam 2021.

4 November 2021
Norm Tovey-Walsh and Debbie Lockett presented SaxonJS tutorial at Declarative Amsterdam 2021.

5 October 2021
SaxonCS 11.0 first release for .NET.