Test Data Generator

What Is Test Data Generation?

Test data generation is the process of creating realistic but synthetic data for software testing and development. Instead of using production data (which raises privacy and security concerns), developers use generated test data that mimics real-world data patterns. This tool lets you define a schema with field names and data types (name, email, phone, address, UUID, date, number, boolean, and more) and generates the specified number of rows of realistic data. The output can be exported in multiple formats: JSON for API testing and data interchange, CSV for spreadsheet analysis, SQL INSERT statements for database seeding, and HTML tables for visual review. Test data generation is essential for unit testing, integration testing, performance testing, and demo environments.

How to Use This Tool

1. Define schema fields — Click + Add Field to add fields. Enter a field name and select a data type from the dropdown.
2. Set row count — Enter the number of rows to generate (up to 1000).
3. Choose output format — Select JSON, CSV, SQL INSERT, or HTML Table based on your needs.
4. Click Generate — The tool creates realistic fake data matching your schema definition.
5. Copy or download — Click Copy to copy the data to your clipboard, or Download to save as a file in the selected format.

Frequently Asked Questions