Definitely a cool area for exploration. I'm not aware of JSON Schema generators from RDFS either. It should be possible to model the basics (nested structure,

Definitely a cool area for exploration. I'm not aware of JSON Schema generators from RDFS either. It should be possible to model the basics (nested structure, repeated structure, defining the "domain" and "range" of a value). Schema.org definitions however have no conception of "required" values[], however, so some of the cool form validation we see in some of these tools might not apply here. [*] _Consumers_ of Schema.org JSON-LD or microdata, however, might define their own data requirements. E.g. Google has some concept of required fields, which you can see when using the Structured Data Testing Tool.