JSON Schema Generator & Validator

Generate a schema from samples

Multiple samples merge into one shape — a field only becomes optional if it's actually missing from one of them, the same inference engine behind Living Types.

Sample 1

Schema

Paste at least one JSON sample.

Validate data against a schema

JSON data

JSON Schema

Supports type/properties/required/items/enum, min/maxLength, pattern, minimum/maximum, and additionalProperties: false — not the full draft-07 spec (no $ref, oneOf/allOf/not).

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