Key capabilities
- Supports Draft 7, 2019-09, and 2020-12
- Validate large JSON in a background Worker
- Click an issue to locate data and schema rules
- Multi-file $ref, sample generation, presets, and bundle exports
JSON Schema Validator
Validate JSON Schema locally with multiple drafts, multi-file references, issue location, sample generation, and bundle exports.
Referenced schemas0 files
Waiting for input changes to validate automatically
143 B data611 B schema
JSON dataValid JSON
JSON SchemaValid JSON
Validation results0 issues
Waiting for input changes to validate automatically
About JSON Schema Validator
Validate JSON structures and locate contract issues. Validate JSON Schema locally with multiple drafts, multi-file references, issue location, sample generation, and bundle exports. The core workflow is designed to run in your current browser.
Useful for
- Validate API request and response contracts
- Check configuration and deployment parameters
- Validate test fixtures and mock data
Frequently asked questions
Is JSON Schema Validator free to use online?
Yes. JSON Schema Validator opens in a modern browser and does not require desktop software installation.
What is JSON Schema Validator useful for?
Common use cases include Validate API request and response contracts; Check configuration and deployment parameters.
Is my input or file uploaded?
The core processing workflow is designed to run locally in the browser. Key capabilities include Supports Draft 7, 2019-09, and 2020-12, Validate large JSON in a background Worker, Click an issue to locate data and schema rules; account, comments, and anonymous analytics may still create normal site requests.
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