JSON Schema Validator
NewValidate JSON data against a JSON Schema to ensure it matches the expected structure. Supports type checking, required fields, string length constraints, and numeric range validation. Essential for API contract testing, data validation, and configuration file verification.
JSON Data
JSON Schema
How to Use JSON Schema Validator
- 1Paste your JSON data on the left
- 2Paste your JSON Schema on the right
- 3Click Validate
- 4See detailed validation errors or success
Your Privacy is Protected
JSON Schema Validator runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
No server uploadNo account required100% freeWorks on all devices
Frequently Asked Questions
Which JSON Schema version is supported?
A simplified subset of JSON Schema (draft-07 compatible) supporting type, required, properties, minLength, maxLength, minimum, and maximum.
Why Use This Tool?
Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed
Tags
json schemajson validationschema validatorjson schema validatordata validation