Free tool · No signup required

Schema Markup
Validator

Paste your JSON-LD schema markup and instantly validate it. Check for errors, identify the schema type, and see exactly which fields are present or missing.

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Instant validation
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Detects 16+ schema types
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No data stored
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Unlimited use
Paste your schema markup JSON-LD Validator
Supports all JSON-LD schema types
Schema Type Detected
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Fields Found
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Context
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JSON Format
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Fields Detected
Validation Results

How to use

01

Generate your schema

Use any Schemify generator tool to create your JSON-LD structured data.

02

Paste it here

Copy your JSON-LD output and paste it into the validator above.

03

Check results

Instantly see your schema type, detected fields, errors and warnings.

04

Fix & publish

Fix any errors, validate again, then paste into your page's <head> tag.

Why Validate Your Schema Markup?

Even a single missing comma or incorrect field name in your JSON-LD can prevent Google from reading your schema, meaning all the SEO benefits you expect won't happen. Schema validation catches these errors before they cost you rankings and rich results.

This tool checks your JSON-LD for syntax errors, missing required fields, incorrect field types, and structural problems. It also identifies your schema type and lists every field present giving, you a complete picture of your structured data in seconds.

What does this validator check?

The Schemify validator performs three layers of checking JSON syntax validation (is the code valid JSON?), schema structure validation (does it follow JSON-LD conventions?), and field-level validation (are required fields present for the detected schema type?). Each layer helps catch a different class of error.

What's the difference between this and Google's Rich Results Test?

Google's Rich Results Test checks if your live page will generate rich results; it requires a live URL. The Schemify validator checks your raw JSON-LD code instantly, without making it perfect for validating before you publish. Use both: Schemify first, then Google to confirm.

Pro tip: Always validate your schema before uploading to Cloudflare or publishing to your live site. Fixing errors locally takes seconds, fixing them after Google has already crawled your page and found invalid schema can take days to recover from.

Common Schema Errors This Tool Catches

❌ Invalid JSON syntax
Missing commas, unclosed brackets, unquoted keys — any of these break the entire JSON block and make it unreadable by Google.
❌ Missing @context
Every JSON-LD block must include "@context": "https://schema.org". Without it, Google cannot identify the vocabulary being used.
❌ Missing @type
The @type field tells Google what kind of entity you're describing. Without it, the entire schema block is meaningless to search engines.
❌ Missing required fields
Each schema type has required fields. FAQPage needs mainEntity, Product needs name and offers. Missing required fields prevent rich results.
❌ Wrong value types
Some fields require specific formats; dates must be ISO 8601, and durations must follow the PT format. Plain text values in these fields cause validation failures.
❌ Script tag included
Some validators fail if you paste the full script tag. This tool automatically strips the script tag and validates just the JSON-LD content inside.

Frequently Asked Questions about Schema Validation

No, they serve different purposes. This tool validates your raw JSON-LD code instantly without needing a live URL. Google's Rich Results Test checks whether your live page will generate rich results in search. Use this tool first to catch code errors, then use Google's test to confirm your live page is working correctly.
Yes. This validator automatically detects and strips the script tag wrapper, extracting just the JSON-LD content for validation. You can paste the complete output from any Schemify generator directly, including the script tags, and it will validate correctly.
Valid schema doesn't guarantee rich results. Google also considers content quality, page authority, user engagement signals, and whether the schema accurately reflects the page content. Schema validation is a necessary but not sufficient condition. If your schema is valid and your content is high quality, rich results typically appear within a few weeks of Google recrawling your page.
No. All validation happens entirely in your browser using JavaScript. Nothing you paste is sent to any server or stored anywhere. Your schema data stays completely private. This is especially important for business schemas that may contain sensitive details like addresses, contact info, or pricing.
This validator supports all 15+ schema types available on Schemify: FAQPage, Article, Product, LocalBusiness, Recipe, Event, Review, BreadcrumbList, JobPosting, VideoObject, HowTo, Organization, Person, Course, SoftwareApplication, and WebSite. It detects the type automatically from your @type field and checks the relevant required fields for that type.

Generate Schema with Our Free Tools

Create valid JSON-LD schema markup in seconds then validate it here

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FAQ Schema
Q&A rich results
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Product Schema
Price & ratings in Google
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Article Schema
Author & date metadata
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Local Business
Google Maps & local search
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Website Schema
Site name & Search box
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Software App
Show app ratings & Prices
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