: Supports checking XML against W3C Schema (XSD), DTD, Schematron, and RelaxNG.
is a specialized desktop application for Windows used to validate, edit, and transform large sets of XML and JSON data. As of late 2025, the tool is completely free for personal and educational use, including all features of the Standard edition. Essential Features XML ValidatorBuddy 2022 Free Download
: Allows you to validate thousands of XML documents with one click and generate detailed error reports. : Supports checking XML against W3C Schema (XSD),