JSON Schema Validator

JSON Schema Validator

JSON Schema Validator

Validate JSON data against draft-07 schemas, debug errors, and generate schemas.

Validation Status

1. Input JSON Data

2. JSON Schema

Data Path	Error Message	Schema Keyword

Simple Schema Generator

Paste a valid JSON object below, and we will infer a basic schema structure for you.

Input JSON Object

Generated Schema

Quick Guide to JSON Schema

JSON Schema is a vocabulary that allows you to annotate and validate JSON documents.

Common Keywords

type: Defines the data type (string, number, object, array, boolean, null).
properties: Defines keys within an object.
required: An array of property names that must exist.
additionalProperties: Boolean (true/false) to allow or forbid unknown keys.
items: Defines the schema for items within an array.
pattern: Regex string for validating string formats.
enum: Restricted set of allowed values.