JSON-LD validator

Check pasted structured data against the properties Google requires and recommends. No URL, no crawl, no captcha.

Runs locally in your browser

Paste JSON-LD, a script tag, or a full HTML page

Need to check a page that is already online? Use the URL validator. /validate

Other tools

JSON-LD escape checker

Google now applies a single pass of HTML unescaping to JSON-LD. Double-escaped entities are no longer unrolled: see what Google actually reads, and get your block rewritten with standard JSON escapes.

Schema markup generator

Fill in the fields Google documents for your type and get valid JSON-LD, ready to paste.

Microdata and RDFa to JSON-LD

Convert legacy inline markup into the format Google recommends, without touching your templates by hand.