Schema Markup Validator
Check pasted JSON-LD for JSON syntax and selected context, type and property-presence hints. This is a limited local check, not full validation.
Check pasted JSON-LD for JSON syntax and selected context, type and property-presence hints. This is a limited local check, not full validation. The scope note below explains what needs separate review.
Schema Markup Validator is a free Schema & Structured Data Tools utility that runs entirely in your browser — nothing you enter is uploaded.
How to use Schema Markup Validator
- Paste the documented input format into the input field.
- Read the limited checks and any reported missing fields.
- Use a full implementation or the relevant consumer’s test for complete validation.
About this tool
Parses pasted JSON, or the first matching JSON-LD script block, and reports basic @context, @type and selected top-level property-presence hints. It follows arrays and @graph for those hints. It does not expand JSON-LD contexts, verify vocabulary terms or property values, inspect a live URL, or establish Google rich-result eligibility.
Schema Markup Validator runs entirely in your browser. Schema Markup Validator assembles valid JSON-LD locally so you can paste it into your page.
Everything is generated on your device with nothing uploaded. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What does Schema Markup Validator do?
Check pasted JSON-LD for JSON syntax and selected context, type and property-presence hints. This is a limited local check, not full validation.
Is Schema Markup Validator free to use?
Yes — Schema Markup Validator is completely free, with no usage limits.
Where is my data processed by Schema Markup Validator?
Entirely in your browser — Schema Markup Validator keeps your data on your own machine and sends nothing anywhere.
Does this tool fully validate Schema.org or search eligibility?
Parses pasted JSON, or the first matching JSON-LD script block, and reports basic @context, @type and selected top-level property-presence hints. It follows arrays and @graph for those hints. It does not expand JSON-LD contexts, verify vocabulary terms or property values, inspect a live URL, or establish Google rich-result eligibility.
Can I use Schema Markup Validator without a connection?
Yes — after the first load Schema Markup Validator runs entirely offline.