Json Schema Validator

JSON Schema Validator checks whether a JSON document matches a schema you provide. Paste your data and schema, run validation, and get a clear pass/fail plus a list of every violation with its location — ideal for testing API payloads, config files, or learning JSON Schema.

1. Paste your JSON data into the data box 2. Paste a JSON Schema into the schema box 3. Click Validate 4. Read the result: a green check means it passed, a red cross lists each error with its path

Type checking covers integer, number, string, boolean, array, and object (integers must be whole numbers, not 30.0). Numeric constraints: minimum and maximum. String constraints: minLength, maxLength, and pattern (compiled as a RegExp). enum membership is enforced. Object handling validates required keys and recurses into properties; array handling recurses into each item via the items schema.