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Mock Data Generator

Generate mock names, emails, IDs, dates, and other sample records for testing workflows.
Rating 4.5/5 | 0 comments | Free
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Generation Setup
Selectable Fields
Optional Input Notes

Generate reusable mock rows with deterministic output.

About Tool

Prototyping interfaces and testing database performance requires high-quality, realistic data. The Mock Data Generator allows you to create thousands of sample records instantly, providing a safe alternative to using sensitive real-world information during development and QA cycles.

Presets and Customization

Whether you need a simple list of users or a complex set of order histories, the tool offers various Presets such as Users, Contacts, and Orders. These presets automatically configure common fields like First Name, Email, and Company. You can adjust the "Row count" using the slider or numeric input to generate exactly the volume of data you need, whether it's a dozen rows for a UI mockup or thousands for stress-testing a CSV Splitter workflow.

Deterministic Data Generation

One of the most powerful features for developers is the Deterministic Seed. By entering a specific seed value, you ensure that the generator produces the exact same "random" data every time you run it. This is invaluable for automated testing where you need predictable inputs to verify expected outcomes. If you are integrating this data into a web application, you can choose between CSV or JSON export formats, making it easy to then use an Excel to JSON tool for further refinement if necessary.

Exporting Your Mock Data

Once your data is generated, you can view a preview in the output area. The tool allows you to either copy the raw data to your clipboard or download it as a file. This makes it easy to populate local databases, fill out spreadsheet templates, or provide sample files for documentation. Because the tool runs entirely in your browser, your generated datasets remain private and are never stored on a server.

Quick Start Guide

  • Select a Preset: Choose a data template like "Users" to quickly populate fields.
  • Adjust Quantity: Use the row count slider to set the desired number of records.
  • Format Output: Select either CSV or JSON depending on your project requirements.
  • Generate and Download: Click "Run" to create the data, then "Download Result" to save it.

Frequently Asked Questions

Is the generated email data real?

No, all emails and contact details are synthetically generated and do not belong to real individuals.

Can I set a specific date range for date fields?

Yes, the "Date start" option allows you to anchor your generated date fields to a specific timeframe.

What is a deterministic seed used for?

A seed ensures that the generator produces the same dataset every time. This is helpful for team members who need to work with identical test data.

Can I add custom field headers?

The tool uses standard headers based on the selected preset or custom field configuration to ensure compatibility with most data importers.

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