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JSON Schema Validator

Validate JSON data against a JSON Schema. Real-time validation with error paths, draft version support, and detailed feedback.

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About This Tool

Validate JSON data against a JSON Schema. Real-time validation with error paths, draft version support, and detailed feedback.

Key Features

Quick Preview

Use Cases

json datetime validation

Frequently Asked Questions

How can I view error details when validation fails?

When validation fails, the tool displays each error's path location, error type, and specific description. Error paths use dot notation (e.g., address.city), making it easy to quickly locate the problematic field in your JSON data.

Which JSON Schema versions are supported?

The tool supports JSON Schema Draft-07 and Draft-2020-12. It automatically identifies the version based on the $schema field in your schema, ensuring validation rules align with the corresponding specification.

What types of constraints can be validated?

The tool supports type matching, required fields, string length, numeric ranges, enum values, regex patterns, array item counts, unique items, format validation (email, URI, etc.), and composite constraints like allOf, anyOf, oneOf, and not.

Is my data safe when using this tool?

Absolutely. All JSON data and schema parsing and validation happen locally in your browser. No data is uploaded to any server, keeping your data structures and schemas completely private.

How can I quickly test the validation feature?

The tool provides a sample data button that automatically loads example JSON data and a corresponding schema. You can immediately see the validation results and modify the data to observe how validation changes.