Free JSON Schema Validator

Validate JSON data against JSON Schema (Draft 4/6/7) instantly in your browser. Get detailed error messages with paths, line numbers, and keyword context. Load sample schemas, upload files, and copy validated results. No signup required.

Paste a schema and data to begin
JSON Schema
"type" "properties" "required" "items" "enum" "pattern" "minimum" "anyOf" "$ref"
JSON Data
Validation Results
Enter a JSON Schema and JSON data, then click Validate

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