What is structured data?

Structured data is webpage content marked up using Schema.org vocabulary, helping search engines better understand pages. Common formats include JSON-LD, Microdata, and RDFa. Proper markup can earn Rich Results like star ratings, FAQ accordions, and breadcrumbs.

How do I validate structured data?

Paste your JSON-LD code and click Validate. The tool checks JSON syntax, verifies @context and @type fields, and detects known Schema types like Article, Product, FAQPage, etc.

What's the difference between JSON-LD and Microdata?

JSON-LD is Google's recommended format. It uses a JSON object in a script tag, separate from HTML structure, making it easy to maintain. Microdata is embedded directly in HTML attributes. This tool primarily validates JSON-LD.

Free Online Structured Data Validator

Free online structured data validator. Validate JSON-LD, Microdata, and Schema.org markup. Supports Google Rich Results standards, client-side validation for...

Paste your JSON-LD code to validate Schema.org structured data

📊 Result Chart

📖 About This Tool

This tool runs entirely in your browser locally. No registration, no installation, no data upload required. All processing happens on your device, ensuring complete data privacy and security. Compatible with all major browsers including Chrome, Firefox, Safari, and Edge.

✨ Features

100% free, no account required
Client-side processing, data never leaves your device
Responsive design, works on mobile, tablet & desktop
Clean intuitive interface, fast and efficient
Instant processing, no waiting

❓ FAQ

Do I need to create an account?

No. All tools are completely free with no registration or login required.

Is my data safe and private?

Absolutely. Everything runs locally: Free Online Structured Data Validator and other values are processed on your device, never sent to a server. Your data is never uploaded to any server, ensuring complete privacy.

Which browsers and devices are supported?

All modern browsers (Chrome, Firefox, Safari, Edge) and devices including phones, tablets, and desktops are supported.

Are there file size limits?

Processing capability depends on your device and browser. For very large files, consider processing in batches for the best experience.

Free Online Structured Data Validator

Validation Result

📖 About This Tool

✨ Features

❓ FAQ