Schema Markup Validator, Test JSON-LD Free
Paste JSON-LD, get syntax + structure validation.
For Google's official rich-result eligibility test, use Google's Rich Results Test.
About this tool
Checks JSON-LD for syntax errors, missing @context/@type, and required fields per schema type. Catches the typos that silently break rich results.
How to use
- 1. Paste your JSON-LD.
- 2. Click Validate.
- 3. Fix any flagged issues.
Frequently asked questions
What does it check?
JSON syntax, @context/@type presence, and required properties for common types.
Is it free?
Yes.
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