JSON Schema Validator

What is the JSON Schema Validator?

The JSON Schema Validator checks JSON data against a JSON Schema and instantly reports whether the structure is valid. Developers can paste any schema and data to verify types, required fields, nested objects and arrays. This makes it ideal for API development, backend validation, data modeling and debugging structured payloads. The validator runs fully client‑side using a compact AJV‑based engine, ensuring privacy and immediate performance. A fast and reliable way to validate JSON without external tools or command‑line utilities.