Validate Schema Markup Online

Paste JSON-LD to check syntax and required schema.org fields. Does not fetch live pages — paste-only.

Paste only — cannot fetch live URLs.The schema validator analyzes content you paste into the box. Browsers block websites from loading other sites' HTML (CORS), so we cannot enter a URL and pull your page automatically. Copy HTML from View Source (Ctrl+U / Cmd+Option+U), your CMS, or a saved file.

Not a replacement for Google Rich Results Test, which fetches your URL server-side.

—Status

How to use

  1. Copy JSON-LD from a <script type="application/ld+json"> block in your page source.
  2. Paste it into the box below (single object or array).
  3. Fix any missing @context, @type, or required fields before deploying.

Frequently asked questions

Can this validate schema on a live URL?

No. Paste JSON-LD from your page source or script tags. Browsers cannot fetch other sites' HTML.

What schema types are checked?

Article, Product, FAQPage, HowTo, LocalBusiness, Person, Organization, WebSite, WebApplication, and BreadcrumbList — with required-field validation per type.

Is this a replacement for Google Rich Results Test?

No. This checks JSON syntax and basic required fields locally. Google's tool fetches your URL and tests rich-result eligibility server-side.

Is my JSON sent to a server?

No. Validation runs entirely in your browser.

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