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JSON Schema Validator

Validate JSON data against a JSON Schema (subset of Draft 7) and list every failing path; it does not cover every advanced schema keyword.

Free to use

JSON data & schema

Checks the common Draft 7 keywords (type, enum, required, properties, items, string/number constraints, allOf/anyOf/oneOf/not). It does not resolve $ref, if/then/else, or every advanced keyword — review results accordingly.

Result

Paste JSON data and a JSON Schema, then click Validate.

About JSON Schema Validator

Validate JSON data against a JSON Schema (subset of Draft 7) and list every failing path; it does not cover every advanced schema keyword.

How to use this tool

  1. Enter the requested data or choose an upload.
  2. Check the file type and size limit before submitting.
  3. Review the result, then download or copy it.
  4. Keep the original and use the actions above to continue safely.

Read the full JSON Schema Validator guide →