JSON-LD Validator | Schema Markup & Structured Data Checker

JSON-LD validator that checks schema markup for syntax errors, missing required properties, and invalid dates or prices. Paste JSON-LD or a full page, no signup.

Also known as: json ld validator · schema markup validator · structured data validator · validate json ld online · rich results checker · schema org validator · structured data testing tool

JSON-LD or Page HTML

Validation Report

About JSON-LD Validator

Check schema.org structured data for the errors that quietly cost you a rich result: missing required properties, dates in the wrong format, prices with a currency symbol, and relative image URLs.

Key Features

Checks required and recommended properties for 35 schema.org types, including Product, Article, FAQPage, LocalBusiness, Recipe, Event and JobPosting
Catches the value-level mistakes a syntax checker misses: 09/05/2026 dates, a price of $34.95, a three-letter currency code written as US Dollars, and ratings outside their own scale
Accepts a whole HTML page and pulls out every script tag, or bare JSON-LD, and reports the exact property path of each problem

Use Cases

Debug why a product page stopped showing star ratings in Google search results
Validate structured data on a staging URL before it ships, without waiting for Search Console to recrawl it
Review markup a plugin or CMS generated for you, where the required properties are easy to miss

Related Keywords

json ld validator

schema markup validator

structured data validator

validate json ld online

rich results checker

schema org validator

structured data testing tool

free schema validator

What this checks, and what only Google can tell you

This validates your markup against the schema.org vocabulary and Google's documented rich result requirements, entirely in your browser. It does not fetch the page, render JavaScript, or promise a rich result: eligibility also depends on content quality, indexing and manual actions, which only Search Console can report. Use this to fix the markup, then confirm eligibility in the Rich Results Test.

Your markup never leaves your browser

Validation runs entirely client-side with the browser's own JSON parser. Nothing is uploaded, logged or sent to a server, so unpublished pages and staging markup are safe to paste.

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Frequently asked questions

What is JSON-LD Validator used for?

JSON-LD validator that checks schema markup for syntax errors, missing required properties, and invalid dates or prices. Paste JSON-LD or a full page, no signup.

Is JSON-LD Validator free to use?

Yes. JSON-LD Validator is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use JSON-LD Validator?

No. JSON-LD Validator works immediately in your browser with no signup, login, or email address required.

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