Schema Markup Validator vs Schemantra (2026): which should you pick?

Pick Schema Markup Validator if

• Fits if you're a developer checking that schema.org markup is well formed
• Works for sites using structured data for engines and apps other than Google

Look elsewhere if

• Skip it if you want to know about Google rich results, which need Google's Rich Results Test
• Too light for a whole site, as it checks one URL or snippet per run
• Not for you if you want saved history or scheduled checks, as the page offers neither
• Watch out: it's hosted by the schema.org community project, not a company selling support

Pick Schemantra if

• Fits if you need a schema.org type that Google's rich result tools don't cover
• Works for mapping how the entities on a page relate before you write the markup

Look elsewhere if

• Watch out: it's still labeled a beta, the footer copyright reads 2022 and the newest blog posts are from March 2024
• Not for you if you want markup tested, as it only writes it
• Too light for sites that need markup added and monitored, as you paste it in yourself and nothing is checked later
• Skip it if you don't want an account, which is needed to create and save schemas

Schema Markup Validator

• Does not tell you whether a page qualifies for Google rich results; Google's Rich Results Test does that.
• Tests one URL or one snippet per run; the page offers no site crawl, scheduling or saved history.
• Hosted by the schema.org project, a community effort founded by Google, Microsoft, Yahoo and Yandex, not a company selling support.

Schemantra

• It is labeled as a beta; the footer copyright reads 2022 and the newest blog posts date from March 2024.
• It only writes markup: you add the JSON-LD to your pages yourself or through a tag manager, and nothing is monitored afterward.
• An account is needed to create and save schemas.
• Custom ontology building is offered as a service, with no prices shown.

Schema Markup Validator

Fetch a URL

Enter a page address and the validator fetches the page and checks the structured data embedded in it.

Test a code snippet

Paste markup into the editor to check it before it is published, and rerun the test after each change.

Any schema.org type

Checks syntax and compliance with schema.org standards for every type in the vocabulary, not only the ones Google uses for rich results.

No Google-specific warnings

Google describes it as validating schema.org data without Google feature-specific warnings, which its Rich Results Test covers instead.

Interface in many languages

The validator's interface can be switched between dozens of languages, including Japanese, German, Hindi, Arabic and Spanish.

Schemantra

The full schema.org vocabulary

Its guide lists 1,353 schema types and 1,448 properties, so less common types can be built as well as the ones Google uses for rich results.

Sub-schemas and linked entities

Properties that are themselves types, such as an organization's founder as a Person, are added as sub-schemas linked to the main entity.

Knowledge graph view

Shows the entities on a page and how they relate to the main one as a diagram while you build.

Industry starting points

Lists the usual types for local businesses, healthcare, real estate, ecommerce, car dealers, airlines, hotels and publishers.

Free course and guides

A schema markup crash course with a car dealership example, step-by-step guides, and a forum for questions.

Schema Markup Validator

• Free$0

  Validates schema.org markup from a fetched URL or a pasted code snippet, with the interface in several languages.

Schemantra

• Free$0

  Sign in to create, link and save schema markup of any schema.org type, with no limits stated.