What is random test data used for?

Random test data is used for unit tests, integration tests, database seeding, API testing, UI prototyping, and performance testing. It helps ensure applications handle a variety of real-world inputs correctly.

Can I customise the fields?

Yes. The generator includes common field types - name, email, phone, age, city, country, UUID, boolean, date, IP address, and more. Select the fields you want and set the number of rows.

Random Data Generator - Free Online Test Data Tool

Seeding Databases with Dummy Data

Choose your preferred output format (JSON, CSV, SQL, etc.).
Select the fields you need, such as Name, Email, or UUID.
Set the number of rows you want to generate.
Click Generate to produce your mock data and download the result.

Random Data Generator: build realistic datasets for development and QA testing with our comprehensive test data tool. Whether you need a JSON generator for API prototyping or a CSV generator for spreadsheet testing, this utility provides high-quality dummy data tailored to your requirements. All processing happens in your browser, ensuring your data structure remains private while you generate thousands of rows of database seeding content.

Customizable Formats for API Testing

Our mock data generator supports a wide range of formats to fit any tech stack. Generate SQL insert statements for quick database population, or use YAML and XML for configuration testing. This data generator is an essential part of any developer's toolkit, providing everything from random names and addresses to complex UUIDs and IP addresses. Streamline your workflow by automating the creation of realistic datasets for performance testing and UI development.

Multi-format support including JSON, CSV, XML, and SQL INSERT
Wide variety of field types: names, emails, phones, and more
Fast client-side generation for immediate results
Downloadable output for easy integration into your projects

Frequently Asked Questions

What does random-data do?

random-data generate random test data in json, csv, xml, yaml, tsv, and sql.

What input does random-data accept?

Paste text directly into the input field, or type your data. Most operations handle Unicode, special characters, and multi-line inputs without issue.

How large an input can I process?

There is no hard limit imposed by this tool. Very large inputs (multi-MB text) process within your browser's available memory. For files larger than 50 MB, a command-line tool may be faster.

Can I download the output?

Yes - every output panel includes a Copy to Clipboard button and a Download as file option. Outputs are saved as plain text or the appropriate file format for the operation.

Accelerate your development cycle with reliable mock data today. Explore more Generator tools at Chunky Munster and use this Random Data Generator to power your next round of testing.

Random Data Generator online

Generate random test data in JSON, CSV, XML, YAML, TSV, and SQL - runs in your browser

Is the generated data truly random?

Can I use this data in production?