Validate JSON data against a JSON Schema. Catch missing required fields, wrong types, pattern mismatches, and enum violations before they hit production.
JSON Schema is a vocabulary for annotating and validating JSON documents. It defines the shape of valid JSON data —required fields, data types, numeric ranges, string patterns, and enumerated values. The spec is maintained under the IETF (draft-bhutton-json-schema-00).
This validator checks: type (integer vs. number vs. string), required fields, minimum/maximum value constraints, enum allowed values, pattern (regex) matching on strings, and minLength/maxLength limits.
See also: JSON Formatter · JSON Diff · JSON →Code