JSON Validation

What is JSON structure validation?

JSON structure validation goes beyond syntax checking to verify that JSON data conforms to expected structure and business rules. While syntax validation ensures correct JSON format, structure validation uses JSON Schema to define required fields, data types, value ranges, and relationships. For example, a schema might require an "email" field to be a string matching email format, or "age" to be a number between 0 and 120. Structure validation catches logical errors like missing required fields or values outside acceptable ranges. It ensures API contracts are met and data quality is maintained. JSON Schema provides a vocabulary for describing JSON structure with constraints like required properties, type restrictions, pattern matching, and enumerated values. Use our JSON Editor at jsonconsole.com/json-editor for syntax validation, then apply JSON Schema for structure validation. This two-tier approach ensures both syntactic correctness and semantic validity of your JSON data.
Last updated: December 23, 2025

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