Structured Data Validator

Validate JSON-LD, clean up pasted script tags, and catch common structured data issues.

Quick samples

Schema input

Paste raw JSON-LD or rendered HTML script tags to validate schema markup server-side.

Accepts raw JSON-LD objects, arrays, @graph payloads, or pasted application/ld+json script tags.

Strict mode

Flag missing recommended fields for common schema types.

Paste a schema payload or load a quick sample to review JSON-LD checks and normalized output.

Documentation

Structured Data Validator

Full Docs

About this tool

Structured Data Validator checks JSON-LD schema markup, normalizes pasted script tags, and surfaces repair hints. Use it before adding structured data to a page or CMS.

Supported input

Paste raw JSON-LD or a full script block. The tool normalizes the markup and reports validation results, warnings, and repair guidance.

info

Gotchas

Fix JSON syntax errors before interpreting schema-level warnings. A broken parse can hide deeper markup issues.

Validation helps with structure, but it does not guarantee eligibility for search rich results.

tips_and_updates

Key use cases

  • -Validate JSON-LD before publishing.
  • -Clean up pasted application/ld+json script blocks.
  • -Find parse errors and common schema issues.
  • -Review generated markup from Schema Markup Generator.

FAQ