Skip to content
JSON Schema ValidatorDeveloper Tools

JSON Schema Validator

Validate JSON locally against a clearly stated practical subset of JSON Schema.

Loading Tool…

What Is the JSON Schema Validator?

The JSON Schema Validator checks types, properties, required fields, array items, enums, numeric limits, string lengths and patterns, returning exact data paths for issues.

How It Works

Paste a JSON instance and schema. Fix any parse errors first, then work through the path-specific validation ledger.

When to Use It

Use it for lightweight local checks and teaching. Full standards compliance requires a dedicated JSON Schema implementation.

Frequently Asked Questions

Which Keywords Are Supported?
type, properties, required, items, enum, minimum, maximum, minLength, maxLength and pattern.

Found an issue? Send Feedback. See our data sources and update policy for tools that depend on changing information.