Validate JSON-LD syntax
Check JSON-LD syntax and required top-level markers.
Local processing · Nothing is uploaded · 1 MB input limit
Input & settings
Ready. Enter your input to begin.
How to use this tool
Enter your own site data. Process and inspect the generated result before adding it to your website.
Limits and behavior
Checks JSON syntax and @context plus @type/@graph only. Does not expand contexts, validate vocabulary, resolve remote contexts, or certify search eligibility. Maximum total input 1 MB, output 3 MB, JSON nesting 64 levels. Processing stays in your browser worker. Input is limited to 1 MB and output to 3 MB. No input content is saved by CraftAI.
Check JSON-LD syntax and markers
Validate supported JSON-LD syntax before adding structured data to a webpage.
Is passing this check equivalent to Google's Rich Results Test?
No. Structured data feature eligibility involves type-specific requirements and Google's policies.
Related tools: build json ld schema · generate faq schema