JSON-LD Schema Validator
Validate structured data markup for schema.org compliance and required fields.
Schema Validator Features
Fast, accurate structured data validation in your browser.
Validates required fields for Article, Product, FAQPage, HowTo, and 15+ schema types.
Enter a URL to automatically extract and validate all JSON-LD blocks on the page.
Shows errors, warnings, and detected schema types in an easy-to-read report.
About JSON-LD Schema Validator
This tool validates JSON-LD structured data against schema.org requirements. Paste your markup or enter a URL to check for syntax errors, missing required fields, and unknown schema types.
Frequently Asked Questions
Is this tool free to use?
Yes, this tool is completely free.
No account or registration is required.
You can use it as many times as you like.
Is my data private?
JSON input is processed entirely in your browser.
URL fetching uses a proxy to retrieve the page content.
We do not store or log any submitted data.
What is the difference between errors and warnings?
Errors indicate missing required fields that search engines expect.
Warnings indicate best practices that should be followed but are not strictly required.
Fix all errors before submitting to Google Search Console.
Why is my schema type showing as unknown?
The validator checks a curated list of common schema types.
Less common types may not have required field definitions built in.
Unknown type warnings do not mean the schema is invalid.
How do I fix missing required fields?
Add the missing property to your JSON-LD object.
Refer to schema.org documentation for acceptable values.
Re-run the validator after making changes.
Does it work on mobile?
Yes, the tool is fully responsive.
It works on phones, tablets, and desktops.
No app download is needed.
What browsers are supported?
All modern browsers are supported.
This includes Chrome, Firefox, Safari, and Edge.
Keep your browser updated for best results.
Should I also use Googles Rich Results Test?
Yes. This tool provides quick local validation.
Googles Rich Results Test provides official validation against Googles requirements.
Use both for the most thorough validation.