About the JSON-LD Schema Validator & Linter
JSON-LD (JavaScript Object Notation for Linked Data) is the recommended structured data format endorsed by Google, Microsoft, and the W3C for implementing Schema.org markup. However, a single missing comma, unmatched brace, or incorrect property key can invalidate the entire script block.
Validating your JSON-LD code before publishing ensures that search engines can parse your structured data without errors.
This JSON-LD Validator checks JSON syntax with real-time error reporting, verifies the presence of @context and @type properties, analyzes structure across all Schema.org types, and beautifies raw JSON strings.
A common error when copying JSON-LD is including unescaped quotes or trailing commas before closing braces, which causes standard JSON parsers to throw syntax errors.
Tip: Paste all generated structured data into this validator to confirm valid JSON parsing before embedding in production page templates.