Schemantra

Schemantra is a beta schema markup generator that produces JSON-LD for the full range of schema.org types. It is ontology driven, so a user can describe the entities on a page, such as an organization, address, person, event or offer catalog, and link them to the main entity to build a knowledge graph for semantic and entity-based search. The pitch is that linked markup describes relationships between entities more accurately than isolated snippets. Alongside the generator there is a schema markup crash course with a hands-on example, a structured data case study and a schema guide. A waiting list is open for a course on structured data and semantic SEO that covers schema.org fundamentals and dynamic structured data with Google Tag Manager.