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.

TRY SAXON FOR 30 DAYS
Get an evaluation license for Saxon.

For commercial enquiries, please contact saxon-orders@saxonica.com.

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

Recent news

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

7 August 2025
Norm Tovey-Walsh presented the paper Pipe cleaner: ensuring the correctness of XProc pipelines at Balisage 2025.

6 August 2025
Debbie Lockett presented the paper SaxonJS 3 coding improvements at Balisage 2025.

5 August 2025
Michael Kay presented the paper JNodes: a new model for navigating JSON trees at Balisage 2025.

3 July 2025
Saxon 12.8 and Saxon 11.7 maintenance releases for Java, .NET, and C/C++, PHP and Python.

7 June 2025
Norm Tovey-Walsh presented the paper Surfing the web with XProc at Markup UK 2025.

6 June 2025
Michael Kay presented the paper Processing JSON with Template Rules at Markup UK 2025.

2 June 2025
SaxonJS 3.0.0-beta2 second preview release for Node.js and browsers.

16 May 2025
Saxon 12.7 maintenance release for Java, .NET, and C/C++, PHP and Python.

2 May 2025
Saxon 12.6 maintenance release for Java, .NET, and C/C++, PHP and Python.

10 February 2025
Weekend flash sale held to celebrate the 21st anniversary of Saxonica's foundation.

18 December 2024
SaxonJS 3.0.0-beta1 first preview release for Node.js and browsers.

17 October 2024
SaxonJS 2.7 maintenance release for Node.js and browsers.

1 August 2024
Norm Tovey-Walsh presented QT4CG update at Balisage 2024.

1 August 2024
Norm Tovey-Walsh and Debbie Lockett presented SaxonJS 3.0: Major new functionality! at Balisage 2024.

2 July 2024
Saxon 12.5 maintenance release for Java, .NET, and C/C++, PHP and Python.

8 June 2024
O'Neil Delpratt and Matt Patterson presented the paper Bridging XDM types in multiple native type systems at XML Prague 2024.

7 June 2024
Michael Kay presented the paper Navigating and Updating Trees of Maps and Arrays at XML Prague 2024.