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JSON Schema Validator
Paste a schema and document to check types, required fields, enums, lengths, ranges, and nested properties.
Features
- type/required checks
- nested properties
- array items
- pattern/min/max
How to use JSON Schema
- 1Paste schema and JSON document.
- 2Review pass/fail errors.
Examples
Required field
Inputrequired: ["name"]Output
Error if name missing
About JSON Schema
JSON Schema Validator runs practical schema checks in the browser for type, required, properties, items, and common constraints - helpful for API contract smoke tests.
Frequently asked questions
No. It covers common Draft-like constraints, not every keyword.
No.
Practical subset compatible with everyday schemas.