JSON Schema Generator

Paste a JSON payload to instantly generate JSON Schema, TypeScript interfaces, and Zod validation schemas. Detects common formats like email, URL, date-time, and UUID.

20 fields

4 nested objects

1 array

date-time

uri

uuid

JSON Input

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "id": {
      "type": "string"
    },
    "type": {
      "type": "string"
    },
    "created_at": {
      "type": "string",
      "format": "date-time"
    },
    "data": {
      "type": "object",
      "properties": {
        "order_id": {
          "type": "string"
        },
        "amount": {
          "type": "integer"
        },
        "currency": {
          "type": "string"
        },
        "customer": {
          "type": "object",
          "properties": {
            "id": {
              "type": "string"
            },
            "email": {
              "type": "string",
              "format": "email"
            },
            "name": {
              "type": "string"
            }
          },
          "required": [
            "id",
            "email",
            "name"
          ]
        },
        "items": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "sku": {
                "type": "string"
              },
              "quantity": {
                "type": "integer"
              },
              "unit_price": {
                "type": "integer"
              }
            },
            "required": [
              "sku",
              "quantity",
              "unit_price"
            ]
          }
        },
        "metadata": {
          "type": "object",
          "properties": {
            "source": {
              "type": "string",
              "format": "uri"
            },
            "session_id": {
              "type": "string",
              "format": "uuid"
            }
          },
          "required": [
            "source",
            "session_id"
          ]
        }
      },
      "required": [
        "order_id",
        "amount",
        "currency",
        "customer",
        "items",
        "metadata"
      ]
    },
    "webhook_url": {
      "type": "string",
      "format": "uri"
    },
    "is_live": {
      "type": "boolean"
    }
  },
  "required": [
    "id",
    "type",
    "created_at",
    "data",
    "webhook_url",
    "is_live"
  ]
}

JSON Schema

Generates a draft/2020-12 JSON Schema with type inference, required fields, nested objects, array items, and format detection for strings like email, URL, date-time, and UUID.

TypeScript

Produces typed interface declarations with proper nesting. Null values become optional fields. Array items are typed from the first element.

Zod Schema

Creates runtime-validated z.object() definitions with chainable validators for emails, URLs, UUIDs, integers, and datetime strings.

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{ "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "id": { "type": "string" }, "type": { "type": "string" }, "created_at": { "type": "string", "format": "date-time" }, "data": { "type": "object", "properties": { "order_id": { "type": "string" }, "amount": { "type": "integer" }, "currency": { "type": "string" }, "customer": { "type": "object", "properties": { "id": { "type": "string" }, "email": { "type": "string", "format": "email" }, "name": { "type": "string" } }, "required": [ "id", "email", "name" ] }, "items": { "type": "array", "items": { "type": "object", "properties": { "sku": { "type": "string" }, "quantity": { "type": "integer" }, "unit_price": { "type": "integer" } }, "required": [ "sku", "quantity", "unit_price" ] } }, "metadata": { "type": "object", "properties": { "source": { "type": "string", "format": "uri" }, "session_id": { "type": "string", "format": "uuid" } }, "required": [ "source", "session_id" ] } }, "required": [ "order_id", "amount", "currency", "customer", "items", "metadata" ] }, "webhook_url": { "type": "string", "format": "uri" }, "is_live": { "type": "boolean" } }, "required": [ "id", "type", "created_at", "data", "webhook_url", "is_live" ] }