Download XML editor and validator software packages

Free download.
14 days trial period.

XML Validator Buddy makes it easy to edit, create and validate any number of XML and JSON documents.

• Easy to use desktop application. The XML and JSON editor for everyone!
• Validate one or multiple XML files and get detailed error reports.
• Find errors in XML or JSON with ease.
• XML validation for large (multi-GB) XML data.
• Edit your huge XML files with ease.
• Easy Schematron and RelaxNG validation.
• JSON syntax coloring and well-formed checking.
• JSON Schema validator.
• XML validation against any schema also for XML documents with no XSD already assigned.
• Apply any XSL transformation.

Free download.
14 days trial period.

Create, edit and validate JSON data with ease:

• Validate your JSON input and get detailed error reports.
• JSON Schema validator with support for draft 4, 6, 7 and 2019-09.
• Pretty-print and remove whitespace refactoring.
• JSON syntax coloring and well-formed checking.
• Editor with intelligent auto-completion for all JSON documents.
• JSON Pointer Evaluator
• JSON/XML conversions
• Open your huge text and JSON files with the Large File Viewer window.
• Convert CSV files to JSON or XML
• Convert JSON data to CSV with ease

• Command line validator for XML schema and well-formed checking.
• Uses the popular Apache Xerces parser.
• Support for batch validation.
• Free to use. Just request a free license key after the trial period.
• Please note: The free license doesn't support enhanced batch validation.