Paste JSON or HTML
Use JSON-LD or HTML with application/ld+json script blocks.
JSON-LD Validator
Check JSON-LD syntax and inspect structured-data types in JSON or pasted HTML.
Free
No sign-up
Runs in your browser
What is JSON-LD Validator?
JSON-LD Validator is a free online seo tool from GigaTools. Check JSON-LD syntax and inspect structured-data types in JSON or pasted HTML. It runs entirely in your web browser, so nothing is uploaded and it works on any device without installing software.
Common uses
- Find malformed JSON-LD before publishing.
- Inspect multiple scripts and graph nodes.
How it works
How to use JSON-LD Validator
Inspect the data
Review syntax errors, contexts and structured-data types.
Test eligibility
Use Google Rich Results Test and review the guidelines for your schema type.
FAQ
Good to know
How do I use JSON-LD Validator?
1. Paste JSON or HTML: Use JSON-LD or HTML with application/ld+json script blocks. 2. Inspect the data: Review syntax errors, contexts and structured-data types. 3. Test eligibility: Use Google Rich Results Test and review the guidelines for your schema type.
Does passing guarantee rich results?
No. This checks syntax and basic structure, not every schema property or Google eligibility. It does not resolve remote contexts.
Are scripts executed?
No. JSON is parsed as data; pasted HTML scripts and linked resources are not loaded.
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