Schema Markup Validator: Validate JSON-LD Structured Data | Free

A This tool validates JSON syntax and checks for recommended fields. For full rich results eligibility, also use Google's Rich Results Test.

A Yes, completely free.

A Our Schema Markup Validator clearly flags syntax errors and missing required fields in your JSON-LD. Warnings usually indicate optional but recommended fields that, when added, can enhance your schema's potential for rich snippets. Always prioritize fixing errors first, then review warnings to optimize your structured data. Use the tool's feedback to refine your markup, ensuring it accurately reflects your content and meets Schema.org guidelines for better search engine understanding and rich result eligibility.

A Our online Schema Markup Validator offers specialized checks beyond basic JSON syntax validation found in browser developer tools. It identifies missing required fields, warns about recommended but absent properties crucial for rich snippets, and validates against Schema.org guidelines for various types like Article or Product. This focused analysis ensures your structured data is correct and optimized for search engine understanding, saving developers time.

A Paste your product's JSON-LD into the validator. It will then highlight any missing *required* fields, like 'name' or 'offers'. You'll also see suggestions for important *recommended* fields, such as 'image' or 'description', helping you provide complete information.

A No, this validator only processes JSON-LD format. Microdata and RDFa require different parsing logic entirely. If you're migrating from those older formats, you'll need to convert your markup first. Many SEO tools offer conversion scripts. The good news: JSON-LD is Google's preferred format and simpler to maintain across multiple pages.

A Meta tags and schema markup serve different purposes. Meta tags tell browsers about your page, while schema markup tells search engines what your content actually means. For example, a meta description just shows a text snippet, but Product schema can display price and availability directly in search results. You'll want both for best results. Start with schema on your most important pages first.

A You can only paste one JSON-LD block at a time into the validator. If your page has multiple schemas (like separate blocks for Article and Organization), test each one individually. Combining them into one block with a @graph array is cleaner but requires careful syntax. Most pages perform better with a single, well-structured block, which this tool helps you debug field by field.

A JSON syntax validity doesn't guarantee rich results. Our validator checks structure and required fields, but Google also enforces content policies and eligibility rules. For example, a Product schema needs a valid 'price' with currency code, and Review schema requires real reviews, not placeholders. Use our tool to fix syntax first, then Google's test to check eligibility. A clean validation here is step one, not the finish line.

A No, validation is read-only — it won't touch your live site. Paste your JSON-LD into the tool and check for errors. Fixing those issues can actually improve your chances of getting rich snippets. For instance, adding a missing 'priceValidUntil' field to your Product schema might unlock a special SERP feature. Test confidently, then update your actual page markup.