Sourceforge is the home for open-source versions of the famous Saxon XSLT 2.0 and XQuery processor. See also http://www.saxonica.com for Saxonica's home page, and http://saxonica.plan.io for bug trackers and discussion forums.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.