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JSON Dummy Data Generator

Mock Data Tool

Generate valid, random **JSON mock data** for testing. Prototype APIs and fill your UI with realistic placeholders instantly.

Generator
Schema Template (Mustache + Faker)

{{repeat(5)}} to array loop{{internet.email}} for faker

Generated Output

Why use a Dummy JSON Generator?

A **JSON Dummy Generator** is essential for "Database-First" or "API-First" development. It allows storage and frontend engineers to agree on a **JSON Schema** and generate thousands of lines of realistic test data (users, products, transactions) before writing a single line of backend logic. This unblocks UI development and stress-testing.

How to Create Mock Data

  1. 1

    Define Structure

    Use the visual templating system to add fields. Select types like `Name`, `Auto-Increment ID`, `Boolean`, or `Date`.

  2. 2

    Set Row Count

    Choose how many objects you want to generate. Need 5 users? Or 500? Adjust the count to fit your test case.

  3. 3

    Export

    Click Generate to produce the JSON array. You can verify it works with our **JSON Path Tester** or download it for your DB seed file.

Features

Realistic Data

We don't just output `string1`, `string2`. We simulate real-world data shapes like proper names, dates in ISO 8601 format, and boolean flags.

DB Seeding

Perfect for populating your local MongoDB, PostgreSQL, or Firebase database with initial test content during early development.

Instant Mocking

Completely client-side generation. Generate massive datasets instantly without hitting any server rate limits.

Frequently Asked Questions

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