Mock JSON data generator with a temporary API

Describe the data you need. Mockify generates it with AI and gives you a link you can call from your code. No login needed.

Start generatingSee how it works
  • No login
  • Temporary endpoint for 6 hours
  • Powered by Cohere AI
Example output
[
  {
    "id": 1,
    "first_name": "Emma",
    "last_name": "Johnson",
    "email": "[email protected]",
    "is_active": true
  },
  {
    "id": 2,
    "first_name": "Omar",
    "last_name": "Haddad",
    "email": "[email protected]",
    "is_active": false
  }
]

What is Mockify?

Mockify is a free mock JSON data generator. You describe the data you need, and AI creates realistic JSON for it. There is no login.

You also get a temporary API endpoint for the data. Your app can fetch it with fetch, axios or curl, the same way it would call a real backend.

How it works

  1. Describe

    Write a prompt, pick a ready template, or add your own fields. You can also choose a language and a country.

  2. Generate

    The AI creates realistic JSON data that matches your prompt and fields.

  3. Use the endpoint

    Copy the temporary API link or a code example. No login needed. The link works for 6 hours, and you can keep it for 24 hours.

What you get

  • Your own fields

    Add up to 15 fields and choose a type for each: string, integer, number, boolean, date, email, phone, url or uuid.

  • Ready templates

    Start from Users, Products, Blog posts or Orders, then edit the fields.

  • Language and country

    Choose from 5 languages and 10 countries to get names, places and phone formats that fit.

  • A temporary API link

    Every result gets its own endpoint. It works for 6 hours, and you can keep it for 24 hours.

  • Copy or download

    Copy the JSON, or download it as a .json file.

  • Works from any website

    The endpoint allows requests from any origin, so you can call it from your front end.

Who it is for

  • Frontend developers

    Build screens and call a real URL while the backend is not ready yet.

  • Testers and QA

    Fill forms, tables and lists with realistic records instead of “test 1” and “test 2”.

  • Demos and prototypes

    Show a believable app to a client or a team without real customer data.

  • Students and teachers

    Practice fetching JSON and handling loading and errors, with no server to set up.

Why not use random fake data?

Random generators give you lorem ipsum and the same short names again and again. Real data is more uneven: long names, names with accents or apostrophes, long descriptions, and prices of very different sizes.

Those are the cases that break layouts and validation. With Mockify you can ask for them in your prompt, or choose another language, such as Arabic, to see how your screens handle right-to-left text.

Use the endpoint in your code

Replace YOUR_ENDPOINT_ID with the id from your link. The records are in the data field.

const res = await fetch("https://www.mockify.online/api/mock/YOUR_ENDPOINT_ID");
const json = await res.json();
console.log(json.data); // the records
import axios from "axios";

const res = await axios.get("https://www.mockify.online/api/mock/YOUR_ENDPOINT_ID");
console.log(res.data.data); // the records
curl -s "https://www.mockify.online/api/mock/YOUR_ENDPOINT_ID"

Frequently asked questions

Yes. You do not pay and you do not need an account. There are usage limits to keep the service available for everyone, for example 10 generations every 15 minutes.

No. There is no login. Open the generator, describe your data and generate it.

6 hours. You can press “Keep 24 hours” once to keep it until 24 hours after it was created.

Temporarily. We store the text prompt you enter and the AI-generated response so the link can work. When the endpoint expires, the data is deleted.

Mockify is made for tests, demos and prototypes. The data is created by AI, can contain mistakes, and the endpoint is temporary, so do not use it as a real database or for real customers.

Cohere. Your prompt is sent to Cohere to create the data. See Cohere’s privacy policy for details.

Guides and examples

Ready to generate your mock data?

Open the generator, describe what you need and get a temporary API link.

Start generating