This is a playground to toy around with the Document Validator standard developed by Byteplug. It's accessible at https://validator.byteplug.io/ and the source code is released under the MIT license.
Developed by Jonathan De Wachter (jonathan.dewachter@byteplug.io).
It's a web front-end that lets you input your YAML specs and JSON documents in order to see how it validates or invalidates them.