JSON Schema Validator
Check JSON data against a schema — types, required fields, and enums.
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About this tool
Supports the JSON Schema keywords used day to day: type (including integer and lists such as ["string", "null"]), required, properties, additionalProperties, items, enum, const, minimum/maximum, minLength/maxLength, pattern, minItems/maxItems, uniqueItems, and the email, date, date-time and uri formats. It isn't a full implementation: $ref, allOf/anyOf/oneOf and conditional schemas aren't followed.