What is JSON Schema Validator?
JSON Schema Validator checks JSON data against JSON Schema draft specifications.
How to use JSON Schema Validator
Paste JSON data and JSON Schema definitions to validate schema compliance and view error reports.
Key features
- JSON Schema specification compliance checking
- Detailed validation error reports
- 100% client-side operation
Common use cases
- Validating API payload structures against OpenAPI JSON Schemas
Technical details & standards
Evaluates JSON Schema rules client-side.
Frequently asked questions
Which schema drafts are supported?
Draft-07 and 2020-12 specifications are supported.
Is my data safe?
All processing happens entirely in your browser. Your data never leaves your device and is never sent to or stored on a server.
Does it work offline?
Yes. Once the page has loaded, most tools keep working without an internet connection.