Side by side
isSemantic.net vs Schema.dev
Both stand on schema markup tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
isSemantic.net brings several structured-data tasks together in one web tool, including validation, markup generation and RDF conversion. Check its usage restriction and validation scope against your needs before relying on it.
Visit isSemantic.net Free plan APIExtensionWeb
Schema.dev combines structured-data creation with validation, offering both a guided builder and UI or API testing. Its deployer and Cloudflare DNS integration are not yet available, according to their coming-soon labels.
Visit Schema.devThe facts
| isSemantic.net | Schema.dev | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | API, Extension, Web |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 2 |
| Maker | Not published | Not published |
| Website | issemantic.net | schema.dev |
| On schema markup tools | #11 of 24 | #7 of 24 |
isSemantic.net: what it does well
- Checks JSON-LD, RDFa and Microdata against listed standards.
- Generates JSON-LD and RDFa markup from examples.
- Shows RDF as a graph, table and hierarchy.
- Converts RDF from a URL or code snippet.
- Free plan; runs on the web.
What to know first
- Terms restrict use to private, non-commercial purposes.
- Non-Schema.org vocabularies are not validated.
- Search-result appearance is not guaranteed.
- Cookies and IP address storage are disclosed.
Schema.dev: what it does well
- Builder supports 40+ schema types.
- Generates formatted JSON-LD for pages.
- Tests through a UI or optional API.
- Free tester UI and Chrome extension.
- Supports text transformations and custom field text.
What to know first
- Deployment is marked coming soon.
- Cloudflare DNS integration is marked coming soon.
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