FREE • LOCAL • PRIVATE
JSON Schema Validator
Check JSON data against supported schema rules.
🔒 Everything is processed inside your browser. We do not upload your input.
Enter your input to begin.
What this tool supports: Supports common type, properties, required, items, enum, const and numeric/string/array size rules. Not a full JSON Schema implementation; $ref and advanced keywords are rejected. Maximum text input: 500,000 characters. Processing is local and your original text is unchanged.
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