JSON Schema Validator - Validate JSON Against Schema Online
Validate JSON data against a JSON Schema and get detailed error messages instantly
Developer Tools
JSON Schema Validator - Validate JSON Against Schema Online
How to Use
1Paste your JSON Schema in the first textarea
2Paste your JSON data in the second textarea
3Validation results appear instantly
4Errors include the path and description of each issue
Frequently Asked Questions
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It defines the structure, data types, and constraints your JSON data must follow.
This validator uses Ajv, which supports JSON Schema drafts 04, 06, 07, and 2019-09 by default. The draft is inferred from the "$schema" keyword if present.
Error paths use JSON Pointer notation. "(root)" refers to the top-level object, "/name" refers to the "name" property, "/items/0" refers to the first item in an array, and so on.
Yes. All validation happens entirely in your browser — your schema and data are never sent to any server.