isSemantic.net vs JSON-LD Generator
isSemantic.net
issemantic.netJSON-LD Generator
jsonld.comSide by side
| Figure | isSemantic.net | JSON-LD Generator |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 0 | 1 |
| Spec score · Schema Markup Tools | 7.3 (#15) | 7.8 (#7) |
| Purpose | isSemantic.net validates, visualizes, generates and converts structured data on websites. | The generator creates JSON-LD structured data for websites by letting users fill in fields and view the generated markup in real time. |
| Support | The maker provides a Contact us link and says users with queries about the terms can contact them, but the opened pages do not state a support response commitment. | The contact page invites questions and says the maker will do their best to respond. |
Plans
In their own words
isSemantic.net
isSemantic.net is a free web tool for validating, generating, visualizing and converting structured data. Its validator accepts JSON-LD, RDFa and Microdata and checks them against Schema.org, Google Search, Facebook Open Graph, Twitter Cards, Facebook App Links and HTML outline semantics. Markup using other vocabularies appears separately and is not validated. The generator creates or edits examples for Google Search, Schema.org, Open Graph and Twitter Cards, accepts imported snippets and allows added Schema.org properties. Google and Schema.org output is JSON-LD; Open Graph and Twitter Cards output is RDFa. The RDF visualizer shows a graph, triples table and hierarchy. It supports formats including JSON-LD, Microdata, N-Quads, N-Triples, N3, RDFa, RDF/XML, TriG and Turtle, with provisional RDF-star support. The converter accepts a URL or snippet, detects formats and converts serializations. Terms restrict use to private, non-commercial purposes.
JSON-LD Generator
JSON-LD Generator is a free web tool that creates structured data markup from fields users fill in, with generated JSON-LD shown in real time. It covers 17 schema types, including Article, Breadcrumb, Course, Event, FAQ, HowTo, Local Business, Organization, Product, Recipe, Review, Video, WebSite and WebPage. Product fields include offers, ratings and reviews; Local Business offers more than 100 subtypes, with examples such as Restaurant, Hotel and Dentist. The tool displays live checks for required fields and produces JSON using JSON.stringify, which the site describes as strictly valid JSON. Users can copy the generated code and open Google’s Rich Results Test, or follow a shortcut to the schema.org Validator. The form state is preserved between visits. A companion address-to-latitude-and-longitude tool is available for Local Business or Organization data. The generator runs on the web and requires JavaScript. Its creator, Patrick Coombe, says the site launched in 2017 as a reference for web developers and SEO practitioners learning about JSON-LD.