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 2500 paid-for licenses
  • to more than 1300 clients
  • including over 330 site licenses

More than 80 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.

Get an evaluation license for Saxon.
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.

11 May 2021
Saxon-JS 2.2 maintenance release for Node.js and browsers.

14 April 2021
Saxon 10.5 maintenance release for Java and .NET.

1 December 2020
Pricing structure changes. See the Saxonica community site blog post for details.

25 November 2020
Revised price structure for individual Saxon-EE licenses introduced on 1 December 2020. The headline price for a single license remains at £360, but the discount structure for multiple licenses tapers more gradually, and the discount for reduced-functionality licenses (EET, EEQ, EEV) is smaller.

22 October 2020
Saxon maintenance release for Java and .NET.

12 October 2020
The Saxonica online shop now accepts payments in multiple currencies. Payments are now processed through

1 October 2020
Ankita Mohinta joins the sales and marketing team. Commercial manager Sue Schreiber is looking forward to retirement, and Ankita will take over from Sue after a handover period.

1 September 2020
Norm Tovey-Walsh, XML expert well known for his work on DocBook, XProc, and the W3C Technical Architecture Group, has joined the development team at Saxonica.

31 July 2020
Michael Kay presented the paper Asynchronous XSLT at Balisage: The Markup Conference 2020, Washington DC.

12 June 2020
Saxon-JS 2.0 first release for Node.js and browsers.

16 March 2020
Saxon 10.0 first release for Java.

14 February 2020
Michael Kay presented the paper A Proposal for XSLT 4.0 at XML Prague 2020.

28 October 2019
Saxon/C 1.2.1 for C/C++, PHP, and Python released on Linux, Mac OS X and Windows.