https://abacktools.com/tools/data/validators/xml-validator
XML XSD Validator - Validate XML and XML Schema Files | Aback Tools
Free XML XSD Validator online. Validate XML documents and XSD schema files for namespace declarations, schema structure issues, and line-level diagnostics. No...
schema filesxmlxsdvalidatorvalidate
https://lists.w3.org/Archives/Public/public-rww/2016Oct/0013.html
Re: Schema Markup Documents ie: .bot files from Timothy Holborn on 2016-10-04 (public-rww@w3.org...
https://docs.prepr.io/schema-spec
Using Prepr schema spec to generate and validate JSON files. | Prepr CMS – Prepr docs
Learn how to use the Prepr schema spec to generate and validate JSON files you can sync to a Prepr schema.
prepr schema spec