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:

  • over 11,000 paid-for licenses
  • to more than 1,300 clients
  • of whom over 200 have bought a site license

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 email if you need to contact us.

Recent news

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

4 October 2022
SaxonJS 2.5 maintenance release for Node.js and browsers.

3 October 2022
There has been a 20% shift in the USD-GBP exchange rate over the past six months, with severe fluctuation in the last few weeks. In an attempt to keep our USD prices stable, we have increased our GBP list prices across the board by 20%. Existing contracts and quotations will be honoured. When ordering offline, please let us know whether you prefer to be invoiced in GBP, USD, or EUR.

4 August 2022
Michael Kay presented the paper XSLT Extensions for JSON Processing at Balisage: The Markup Conference 2022, Washington DC.

2 August 2022
Norm Tovey-Walsh and others presented the paper Designing for change: Pragmas in Invisible XML as an extensibility mechanism at Balisage: The Markup Conference 2022, Washington DC.

1 August 2022
Norm Tovey-Walsh and others presented the paper Invisible XML Coming into Focus at Balisage: The Markup Conference 2022, Washington DC.

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.

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.