Is there a row limit?

Processing happens in-browser, so tens of thousands of rows can be generated depending on browser performance.

What output formats are available?

JSON, CSV, and SQL INSERT statements are supported.

Is my data sent to a server?

No, all processing happens locally in your browser. Generated data is never sent to a server.

Dummy Data Generator - Free Test Data Generator Tool

Column Definition

Output Settings

Rows

Format

Templates

About Dummy Data Generator

Dummy Data Generator is a free online tool that instantly generates realistic test data right in your browser. It supports 20+ data types including names, emails, addresses, phone numbers, UUIDs, dates, and more. Export your data as JSON, CSV, or SQL INSERT statements. All processing happens locally in your browser — no data is ever sent to a server. Perfect for development, testing, and demo purposes.

How to Use

Define column names and data types to set up the schema
Choose the number of rows and output format (JSON/CSV/SQL)
Click the generate button to create dummy data
Copy the results or download as a file

Frequently Asked Questions

What data types are supported?: Over 20 data types including names, emails, addresses, phone numbers, UUIDs, dates, numbers, URLs, and company names.
Is there a row limit?: Processing happens in-browser, so tens of thousands of rows can be generated depending on browser performance.
What output formats are available?: JSON, CSV, and SQL INSERT statements are supported.
Is my data sent to a server?: No, all processing happens locally in your browser. Generated data is never sent to a server.