SEO & Performance
JSON-LD Validator Helper
Paste JSON-LD to check its syntax and flag common structural omissions against schema.org rules. Everything runs in your browser — your data never leaves the page.
Actions
No input yetJSON-LD input
live
Paste the JSON-LD you ship in a <script type="application/ld+json"> block.
Checks run locally and update as you type.
Validation report
schema.org checksNo input
Paste JSON-LD to validate it.
How it works
The input is parsed with the browser’s own JSON.parse so syntax errors
point at the exact line and column. When the JSON is valid, the document is walked for
@context, @type, and common schema.org entities such as
Article, Product, and Organization, then checked for
required and recommended properties, empty values, keyword typos, and relative URLs.
Everything is local: nothing is uploaded and no request is made.