JSON Schema Validator
Checks a JSON document against a JSON Schema (draft-07 style) and lists every violation with its exact path — types, required fields, ranges, patterns, enums, nested objects and arrays.
Runs 100% in your browser — nothing you paste leaves your device.
Read the full guide to this tool
Notes
- Supported keywords: type, properties, required, items, enum, const, min/max for numbers, lengths, arrays and objects, pattern, format, additionalProperties, allOf/anyOf/oneOf/not and local $ref.
- Remote $ref resolution ($ref to a URL) is not supported — inline the referenced schema instead.
- Runs 100% in your browser — nothing you paste leaves your device.
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