JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It acts as a set of rules that your JSON must follow.

Why should I validate my JSON?

Validation ensures that your data follows the correct structure, preventing crashes in your application and ensuring API compatibility between systems.

Is my JSON data kept private?

Yes. The validation is performed entirely in your browser using the AJV library. Your data and schemas never leave your computer.

Which draft versions does it support?

We support the most common schema versions, including Draft 4, 7, and the latest 2020-12 specifications.

How do I fix validation errors?

Our validator provides the exact line number and property path (e.g., `user.email`) where the data doesn't match the schema, making it easy to fix.

JSON Schema Validator

// Initializing_Validator...

How to Use This JSON Schema Validator

1Paste your JSON Schema into the schema editor.
2Paste the JSON data you want to test into the data editor.
3Check the validation status indicator.
4Fix the highlighted errors in your data or schema until it passes.

Features

✓Support for multiple JSON Schema drafts
✓Detailed error messages with paths to invalid fields
✓Live validation as you type
✓Sample templates for quick testing
✓100% Private local processing

Ensure Data Integrity in Your Apps

JSON has become the de-facto standard for data exchange on the web. However, its flexibility can lead to errors. JSON Schema provides a contract between services, ensuring that data is predictable and reliable. This validator is an essential tool for backend engineers and API developers during the development and debugging process.

Frequently Asked Questions

Verifying status...