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Validate against schema

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JSON Schema Validator

Validate your JSON data against JSON Schema specifications. Get detailed error reports with path locations and export validation results instantly.

Note: This is a basic JSON Schema validator. For advanced features like $ref resolution, custom formats, and full Draft 2019-09 support, consider using specialized libraries like ajv.

How to Use JSON Schema Validator

  1. Upload or paste your JSON and Schema data following the how to validate JSON schema online guide to confirm content accuracy
  2. Select the Schema Draft version - the JSON schema validator tool free will automatically adapt to different specifications
  3. Click the Validate button to instantly learn how to use JSON schema validator and see results with timing information
  4. If errors appear, use the error list to locate paths and view highlighted details in the editor
  5. Export the validation report to share with your team or add to audit documentation

Case Study: JSON Schema Validation in API Integration

During an API refactoring phase, the team relied on the best JSON schema validator for developers to validate response data. Using the JSON schema validator with examples template library, they quickly discovered missing optional fields and prevented production incidents before deployment.

Frequently Asked Questions

Which JSON Schema draft versions are supported?

This basic validator supports common validation rules. For full Draft 04, 06, 07, and 2019-09 support including $ref resolution, consider using advanced libraries.

How are $ref references handled?

Basic inline $defs are supported. For complex multi-file references, use specialized validation tools or libraries.

Is this JSON schema tool free?

Yes! Core validation features are completely free, making it an ideal free JSON schema checker online for basic validation needs.

What should I do if validation fails?

The error list provides path locations, expected values, and actual values to help you identify and fix schema mismatches quickly.

Are there JSON schema validator with examples available?

Yes! Click Load Example to see sample JSON data and a corresponding schema for quick reference and learning.

Can I validate multiple files at once?

Batch validation for multiple JSON files is available in our premium plan for enterprise users.

How do I jump to error locations?

Click any error item to see the path location. Advanced editor integration with line highlighting is planned for future releases.

What does continuous validation mode do?

When enabled, continuous validation automatically checks your data as you type, providing instant feedback on schema compliance.

Can I export validation reports?

Yes, click Export Report to download a JSON or Markdown file containing detailed validation results and error information.

Is this suitable for QA testing workflows?

Absolutely! It's perfect for contract validation during testing phases and ensuring API responses match expected schemas.

Does it support external schema files?

You can paste external schema content directly, or upload dependency files manually for inline validation.

Can I use this tool on mobile devices?

Yes! The interface is fully responsive and works smoothly on smartphones and tablets for on-the-go validation.