Structured Data Validator
Validate JSON-LD structured data against Schema.org types. Detect schema type, validate required fields, suggest recommended fields, multi-schema support, Google Rich Results link, Schema.org docs link, history, shareable URL. 100% client-side.
About Structured Data Validator
Validate JSON-LD structured data against Schema.org types. Detect schema type, validate required fields, suggest recommended fields, multi-schema support, Google Rich Results link, Schema.org docs link, history, shareable URL. 100% client-side. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
What does this validator check?
It parses your JSON-LD, detects the @type (Article, Product, Event, Organization, LocalBusiness, Person, Recipe, Review, FAQPage, HowTo, BreadcrumbList, VideoObject), checks all required fields are present and valid (URLs, dates, numbers), flags missing recommended fields, and reports errors + warnings as human-readable messages.
How do I use it?
Paste your JSON-LD (with or without the <script> wrapper) into the textarea. The tool parses it in real time and shows: detected schema type, missing required fields (errors), missing recommended fields (warnings), and a Google Rich Results test link to verify with Google directly.
Does it support multiple schemas in one document?
Yes — if your JSON-LD is a @graph array, each schema in the graph is validated independently. Errors and warnings are listed per schema with its index in the graph.
What extra features does this tool have compared to others?
(1) Schema type auto-detection. (2) Required field validation. (3) Recommended field suggestions. (4) Human-readable error messages. (5) Warning messages for missing recommended fields. (6) Multi-schema (@graph) support. (7) Google Rich Results test link. (8) Schema.org docs link per type. (9) History (localStorage, last 20). (10) Shareable URL.
Is my data sent anywhere?
No. Validation runs locally. The Google Rich Results link is a clickable external link — your data is not sent there automatically.
Related tools
Affiliate Commission Calculator
Calculate affiliate commissions across four program types — flat percent, tiered percent (progressive brackets), recurring (monthly × N months), and hybrid (initial + recurring). Apply refund-rate and tax-withholding adjustments, compute effective commission rate, compare two program types side-by-side, and project break-even sales to hit a target income. History (localStorage) + shareable URL. 100% client-side.
Affiliate Link Cloaker & Redirect Generator
Cloak affiliate links into pretty URLs and generate redirect scripts (PHP, JavaScript, HTML meta refresh), plus .htaccess, nginx, and robots.txt rules. CSV import of slug/affiliate_url pairs, slug auto-generator from hostname, click-tracking parameter builder, URL-shortener compatibility check, history (localStorage), shareable URL. 100% client-side.
Anchor Text Distribution Analyzer
Analyze anchor text distribution from backlink data. Categorize anchors as exact/partial match, branded, generic, naked URL, or image. Compute distribution %, warn on over-optimization, and export. 100% client-side.