Validate JSON-LD structure locally

Paste a JSON-LD object, array, or @graph. This checks JSON syntax, Schema.org context/types, and a small practical set of common fields. It does not certify Google Rich Results eligibility.

JSON-LD

—Structured nodes

—Unique types

—Errors

—Warnings

Ready—

After publishing, use search-engine-specific testing and URL inspection for actual feature eligibility and crawl/indexing context. Schema.org-valid data alone does not guarantee a search feature.

Browser-local technical SEO workflow

v10.80 connects metadata, SERP drafting, robots, canonical, hreflang, sitemap and structured-data jobs without requiring an account or sending pasted source to a backend. Existing v5.9/v10.0 SEO generators remain intact while new inspectors make it easier to review a finished head or annotation set.

Search-engine boundaries

Local markup checks cannot know what a crawler fetched, rendered, indexed or selected as canonical. Search engines may rewrite title links/snippets, choose different canonicals, ignore invalid or ineligible structured data, and apply live HTTP/robots conditions that are not present in pasted text. Treat these tools as pre-publish QA, then verify live behavior with the relevant search-engine tools.

How to use this JSON-LD Structured Data Validator

Validate JSON-LD syntax, Schema.org context/types, graph structure, and common type-specific fields locally.

Enter, paste, upload, or choose the inputs shown in the tool above.
Adjust the available options for the result you need.
Review the output before copying, downloading, or using it elsewhere.

What this tool does

Check pasted JSON-LD for parse errors and practical Schema.org field gaps; this is not a Google Rich Results eligibility certificate.

Practical tips and limits

Generated markup and metadata should describe content that is actually present on the page. Search engines decide eligibility and presentation independently.