JSON Schema Validator

Paste a schema and instance side by side, run local validation, and review exact instance/schema paths for supported validation keywords.

JSON Schemasupported subset

JSON instancedata to validate

—Result

—Errors

—Schema properties

—Schema depth

ReadyThis browser-local validator intentionally implements a documented practical subset, not the complete Draft 2020-12 specification or remote reference loading.

How to use this JSON Schema Validator

Paste a schema and instance side by side, run local validation, and review exact instance/schema paths for supported validation keywords.

Supported scope and limits

This browser-local helper is designed around common JSON Schema Draft 2020-12 structures, but it does not claim complete specification coverage. Remote references are not fetched, and generated examples, documentation, TypeScript, Zod, or OpenAPI output should be reviewed and refined against the real schema and application contract before production use.