API & OpenAPI utility

OpenAPI Example Generator

Create a sample JSON value from a named component schema and local references.

● This tool runs entirely in your browser. Your input is never uploaded to our servers.

Schema name

OpenAPI YAML or JSON

Output

Your result will appear here…

How to use OpenAPI Example Generator

Paste an OpenAPI document with components.schemas.
Enter the component schema name, such as User.
Select Generate Example and review the values before using the payload.

Example

Input:

openapi: 3.0.3
info:
  title: Example API
  version: 1.0.0
paths: {}
components:
  schemas:
    User:
      type: object
      required: [id, email]
      properties:
        id:
          type: integer
        email:
          type: string
          format: email
        active:
          type: boolean

Output:

{
  "id": 1,
  "email": "[email protected]",
  "active": true
}

Use cases

Create a starter request or response fixture.
Build example payloads from documented models.
Preview the shape of a component schema.

About this tool

Create a sample JSON value from a named component schema and local references. Processing happens locally in your browser, so your input is not sent to a server or included in analytics.

Frequently asked questions

Are remote references downloaded?

No. Only local component schema references are followed; remote references are not fetched.

Does the example meet every constraint?

No. It uses basic types, examples, defaults, and enums and does not satisfy every OpenAPI constraint.

Is the document uploaded?

No. Example generation runs locally.