Generators

Free Test Data Generator — MyDevToolsMock Data Generator on MyDevTools

Schema-based fake data for APIs and tests: export JSON, CSV, SQL, or XML (a local Mockaroo alternative). Good for "generate sample users JSON" or "CSV test data".

About Mock Data Generator

Build a field schema with dozens of data types, optional blanks, sequences, and export JSON, CSV, SQL, or XML up to thousands of rows — all locally on your device. Part of MyDevTools — an all-in-one desktop toolkit that runs offline and processes your data locally on your machine.

Common Mock Data Generator use cases

Use Mock Data Generator when you need a fast, dedicated way to work with mock data. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks. Because MyDevTools keeps related utilities together in one offline desktop app, you can move from Mock Data Generator into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.

Example workflow

A typical workflow starts by pasting or typing your input into Mock Data Generator. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes Mock Data Generator part of a practical developer workflow instead of a one-off utility page.

Key Features

  • Mock Data Generator supports mock data workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports test data generator workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports fake data workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports json fixtures workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports csv generator workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports sql insert generator workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports api testing workflows in one all-in-one desktop toolkit.
  • Mock Data Generator supports mockaroo workflows in one all-in-one desktop toolkit.
  • Runs offline on your desktop
  • Free to use, always

Mock Data Generator FAQ

Is Mock Data Generator free to use?

Yes. Mock Data Generator is part of MyDevTools, the all-in-one developer desktop app, and is free to use.

Do I need to install anything for Mock Data Generator?

Mock Data Generator is one of 80+ tools in the MyDevTools desktop app. Install MyDevTools once and every tool works offline, with your data processed locally.

What is Mock Data Generator best for?

Schema-based fake data for APIs and tests: export JSON, CSV, SQL, or XML (a local Mockaroo alternative). Good for "generate sample users JSON" or "CSV test data".

What should I use with Mock Data Generator?

Most developers pair Mock Data Generator with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.

How to Use Mock Data Generator

  1. 01

    Open the tool

    Open Mock Data Generator in the MyDevTools desktop app — no account required to start.

  2. 02

    Enter your data

    Paste or type your input directly. Processing happens locally on your device.

  3. 03

    Copy the result

    Get your output instantly. Copy it, download it, or keep working in the same tab.

Learn

Mock Data Generation: Strategies, Tools, and Best Practices for Testing

Learn how to generate realistic fake data for development and testing: names, emails, dates, UUIDs, addresses, and structured records — without using real user data.

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