Simple validation
Input
{"name":"John"}
---
{"type":"object","properties":{"name":{"type":"string"}}} Output
Valid JSON schema.
Checks if JSON matches schema.
Developer Tools
Review practical JSON Schema Validator examples so you can understand expected input, output, and common patterns faster.
Use this JSON Schema Validator to check whether your JSON matches a defined schema. It is useful for API validation, backend checks, testing, and ensuring data structure consistency before processing.
Example pages are especially useful for developer tools because they show what good input looks like, what kind of output to expect, and how the tool behaves in common scenarios.
Input
{"name":"John"}
---
{"type":"object","properties":{"name":{"type":"string"}}} Output
Valid JSON schema.
Checks if JSON matches schema.
Fix: Fix JSON syntax
Fix: Check schema format
Fix: Match required fields in schema
After reviewing these examples, run the live tool with your own input. If your task involves a follow-up step, the related page can help you move to the next tool in the workflow.
Open the main JSON Schema Validator page and test your own real input.