The most elegant way to create random data

With help of powerful and flexible templates written in good old JavaScript.

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What is this?

Have you ever needed to craft mock data for API or script testing? Creating a single record of semi-realistic structured data isn’t that hard. But do it at scale, with say, thousands of records can be a daunting task.

Enter JSON Generator, a tool that handles the heavy lifting for generating structured JSON objects, stuffed with sequenced and/or controllable random data.

Write your code

JSON Generator has an easy, but powerful templating language. Let's dive right in with some simple examples:

using builtin generators

JG.repeat(2, 5, {
  id: JG.objectId(),
  name: `${JG.firstName()} ${JG.lastName()}`,
  company: JG.company(),
  address: `${JG.integer(1, 100)} ${JG.street()}, ${JG.city()}, ${JG.state()}`,
  about: JG.loremIpsum({ units: 'sentences', count: 2 }),
});

or custom generators

JG.repeat(3, {
  phone() {
    const num = _.shuffle(_.range(10));
    let i = 0;
    return '+1 (xxx) xxx-xxxx'.replace(/x/g, () => num[i++]);
  }
});

Get generated random data

Generated data is stored on the server. You can simply copy data and store it locally or fetch it through the API.

.json

[
  {
    "id": "600dc3b5d617e547a0e74cb9",
    "name": "Mitchell Fitzgerald",
    "about": "Proident voluptate veniam voluptate mollit reprehenderit anim officia et ea ex laboris nulla laboris. Nulla ut aliquip fugiat tempor veniam sint aliqua reprehenderit tempor Lorem commodo anim.",
    "address": "48 Flatlands Avenue, Cutter, North Dakota",
    "company": "Scenty"
  },
  {
    "id": "600dc3b5c4e60ba2ebf06569",
    "name": "Howell Faulkner",
    "about": "Mollit Lorem reprehenderit qui elit id aliqua. Deserunt ipsum ad cupidatat ullamco ut aliqua est do consectetur nostrud sit esse.",
    "address": "77 Hemlock Street, Hasty, Florida",
    "company": "Fleetmix"
  }
]

.json

[
  {
    "phone": "+1 (149) 760-2835"
  },
  {
    "phone": "+1 (135) 972-8640"
  },
  {
    "phone": "+1 (213) 854-9760"
  }
]

Fetch it from API

JSON Generator has a convenient REST API. You can fetch your data with the HTTP request.

  curl --request GET -H "Authorization: Bearer R4iN..." --url https://api.json-generator.com/templates/tAu-9/data

This is that simple!

What are you waiting for? Get Started