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JSON Schema from Sample

Paste a JSON sample and get a JSON Schema Draft 2020-12 document ready for validation libraries like Ajv, jsonschema (Python), or JSON Schema Validator (Java). The schema includes correct types for every field, a required array for present keys, format hints for dates/emails/URIs, and nested schemas for objects and arrays. Powered by Amazon Nova Micro on AWS Bedrock.

Paste a JSON sample. Get a JSON Schema (Draft 2020-12) with inferred types, required fields, and sensible formats. Free, daily-capped.
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What the schema includes

  • • Draft 2020-12 $schema declaration
  • • Correct type for every field
  • required array for present keys
  • format hints for dates, emails, URIs
  • • Nested schemas for objects and arrays
  • • Ready for Ajv, jsonschema, validator libs

About JSON Schema from Sample

Paste JSON, get a JSON Schema (Draft 2020-12) with inferred types, required fields, and format hints. Free, no login. This tool runs entirely in your browser — no data is sent to any server. Your content stays private and secure. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.