Mock API JSON Generator

About this tool

Generate a mock JSON array of fake records (id, name, email, active) to use as a placeholder API response while building your front end.

Example

Input: 5 records

Output: [{ "id":1, "name":"...", ... }]

Privacy

This tool runs entirely in your browser. Your data is processed locally and never uploaded to a server.

How to use this tool

1. Enter how many fake records you want for your placeholder API response.
2. Choose the field set if the tool lets you adjust it, or keep the default fields of id, name, email, and active.
3. Generate the JSON and copy it into your front end mock data, test fixture, or temporary API response.
4. Paste the output into your app and verify your list views, forms, and loading states with realistic object data.

Step by step, what happens

1. The tool reads your request for a mock JSON array and prepares a list of fake records.
2. It creates each record with common front end fields such as id, name, email, and active.
3. It formats the result as valid JSON so you can paste it directly into your app or API mock.
4. You use the generated array as stand in data while your real backend is still being built.

Worked example

If you need a quick placeholder response for a users page, you can generate a small JSON array with a couple of fake records.

Input: 2 records

1. You ask the tool for two mock records.
2. It builds a JSON array with two objects using the default fields id, name, email, and active.

Tips and common mistakes

• Use this for temporary front end work, not for real production data.
• Keep the fields close to what your UI expects so you catch layout and state issues early.
• If your app needs a different shape, replace the generated values after copying the JSON.
• Make sure your tests cover both active true and false values so your UI does not assume only one state.

Frequently asked questions