How do I convert Swagger JSON to RAML/YAML and validate it? I am not looking for a programmatic way, just a one off conversion.
Conversion
If you are looking to convert from any version Swagger to RAML 0.8 then APITransformer.com can do it for you. We're almost done with RAML 1.0 export. Will release it in a week's time.
Validation
The converted description comes out of the same code-gen engine that APIMatic uses to validate an API description before generating SDKs/Client libraries. Therefore, the converted RAML will be validated by default.
API descriptions in a variety of formats can also be validated via APIMatic's CLI or APIMatic's API