Schema Markup Validator

Validate JSON-LD syntax, entity types, and required properties locally.

JSON-LD or script markup

This is static analysis of the content you paste. It does not crawl live pages, verify HTTP responses, or replace Google Search Console and official validation tools.

About this tool

Parse JSON-LD or a script block and report missing required properties, unsupported types, invalid URLs, and graph-level problems. It goes beyond JSON formatting to address broken structured data reported on r/TechSEO.

Related tools

More seo you might find useful.

SERP Snippet Preview

Preview a Google-style result and catch title or description truncation.

Meta Description Generator

Create private, template-based meta descriptions with length checks.

Open Graph & Social Card Preview

Preview Facebook, LinkedIn, Slack, and X cards and generate their tags.

Other categories

Looking for something different? Browse the rest of the catalog.

Suggest a tool