JSON Schema Validator

Use this JSON Schema Validator to check if your JSON data conforms to a specific JSON Schema. Just paste your JSON and your schema — and this tool will instantly show whether your data is valid.

Under the hood, this tool uses the powerful open-source library ajv (Another JSON Schema Validator), one of the fastest and most flexible JSON schema validators available in the JavaScript ecosystem.

How to Use JSON Schema Validator

Paste your JSON in one field and your JSON Schema in the other. The validator will analyze your data using ajv and highlight which part (if any) doesn’t comply with the schema.

This tool supports Draft 7, Draft 2019-09, and other widely used versions of the JSON Schema specification.

Why Validate JSON Against a Schema?

JSON Schema provides a way to define the structure, types, and constraints of your data. By validating against a schema, you can ensure data consistency and prevent runtime bugs in APIs, configuration files, and databases.

This tool is especially useful for frontend/backend developers, API designers, and data engineers working with structured JSON.

Looking for a JSON Formatter?

You can also try our JSON Formatter to beautify and validate raw JSON input.