🧪

Dummy Data Generator

Generate realistic fake data for testing in JSON, CSV, SQL, TSV, or XML format

Quick Presets

Select Fields5 selected

Basic(5)

Name(3)

Contact(2)

Location(7)

Work(4)

Data(9)

Internet(7)

Finance(3)

Personal(4)

Text(2)

Advanced(1)

Rows

Format

Share to Community

Was this tool helpful?

What is Dummy Data Generator?

Free online dummy data generator to generate realistic fake user data for testing and development.

Choose from dozens of field types - names, emails, phone numbers, addresses, companies, dates, UUIDs, and more. Set the number of rows, select your output format (JSON or CSV), and download instantly. Perfect for populating databases, testing APIs, creating mockups, and building demo data. All data is generated client-side using deterministic algorithms - no external API calls. No signup required.

How to Use Dummy Data Generator

1Select the fields you want to include (name, email, phone, address, etc.)
2Set the number of rows to generate (1 to 10,000)
3Click Generate to create the data instantly
4Copy the output or download as JSON or CSV

Frequently Asked Questions

You can generate names (first, last, full), emails, phone numbers, street addresses, cities, states, zip codes, countries, company names, job titles, dates, UUIDs, URLs, IP addresses, credit card numbers (fake), lorem ipsum text, numbers, and booleans.

The data is pseudo-random - generated by deterministic algorithms using curated word lists and patterns. Names come from common name databases, emails are derived from generated names, and addresses use realistic but fictional combinations. The data looks realistic but doesn't correspond to real people.

You can export data as formatted JSON (array of objects) or CSV (comma-separated values). Both formats are ready to import into databases, APIs, spreadsheets, or testing frameworks.

You can generate up to 10,000 rows at once. Since all generation happens in your browser, larger datasets may take a moment on slower devices. For most testing purposes, 100-1000 rows is sufficient.

Share this tool

Related Tools

🧪

Mock Data Generator

Generate millions of rows of realistic mock data from SQL schemas, Prisma models, or a visual column builder

AI Data Generator

Generate mock data in JSON, CSV, or SQL from a text description using a local AI in your browser

🔌

API Mock Response Generator

Free online API mock response generator - generate mock API responses for testing

👤

Random Name Generator

Free online random name generator - generate realistic random names for testing and mockups

🔒

Password Generator

Strong password generator online - generate secure random passwords that never leave your browser

🏞️

Lorem Picsum Gallery

Free online lorem picsum gallery - generate random placeholder images with custom dimensions

🧪