Validate Schema.org

Validate Schema.org structured data types, properties, and value relationships.

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ToolSchema.org Validator
Input
Output
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How it works

JSON-LD, Microdata, or RDFa becomes typed items and properties, then vocabulary metadata is used to flag type mismatches and malformed value shapes. Unknown extensions are reported separately from syntax errors.

  • Vocabulary checks catch type-property mismatches.
  • Schema.org extensions remain visible rather than discarded.

Worked example

Validate Product JSON-LD
Check a Product schema for required fields (name, offers) and structural validity
Input
											{"@context":"https://schema.org","@type":"Product","name":"Laptop","offers":{"@type":"Offer","price":"999","priceCurrency":"USD"}}
Output
												Valid: yes
Type: Product
Errors: none
Warnings: none
Properties: name, offers

When to use this

SEO audits, ecommerce markup, and publisher structured data validate Schema.org.

Edge cases

  • A property can be valid for one type but not another.
  • A recommended property can be absent without making syntax invalid.
  • A custom vocabulary term may be intentional but unknown.

References