Test data that looks real and stays private
Build a schema from 240+ field types, preview it instantly and download as much as you need.
Runs in your browser
Data and passwords are generated on your device and never uploaded. We keep only what you choose to save to your account.
Rows that make sense
Email matches the name, age matches the birthdate, ZIP matches the state. Not random noise per column.
Reproducible
Seed and reference date are saved with the schema, so the same link gives the same data on any day.
Big files, no sign-up
Up to 100,000 rows per file and as many files as you need, without an account.
240+ field types
People, addresses, companies, finance, dates, internet, products, vehicles, animals, food and more.
Test-safe finance fields
Luhn-valid test cards, official Stripe test numbers and checksum-valid IBANs.
Three steps to a dataset
- Pick fields or start from a template: users, orders, products, employees.
- Tune them: ranges, custom lists, blank %, seed, and the language with a free account.
- Download CSV, JSON, SQL or XML, or share the schema with a link.
id,first_name,last_name,email,age,state
1,Jarrod,Dietrich,[email protected],35,CO
2,Clement,Predovic,[email protected],45,TX
3,Louis,Towne,[email protected],59,CO
4,Antone,Nienow,[email protected],35,MAFree to start, more when you need it
The generator stays free without an account. Sign up for bigger files and AI, or go Pro when data is your daily job.
$0 no credit card
- 1,000,000-row files
- 41 languages, related tables
- AI data, mock APIs, saved schemas
$9 a month, or $79 a year
- 5,000,000-row files
- All 54 languages and 35 templates
- 50 AI runs a day, 25 mock APIs
$10 per person a month, from 3 people
- Everything in Pro for everyone
- A shared library of schemas
- Owner and admin roles
Frequently asked questions
Is RNDGen free?
Yes. The data generator and all password tools are free and need no account: up to 100,000 rows per file. A free account, with no credit card, adds 1,000,000-row files, more languages, saved schemas, related tables, AI data and mock APIs. Pro ($9 a month) and Team ($10 per person a month) raise the limits.
Do you store the data I generate?
No. Files and passwords are generated in your browser and never uploaded. We store only what you choose to keep in your account: saved schemas, mock API records you host with us, and AI descriptions for 90 days.
Which formats are supported?
CSV, Excel (.xlsx), JSON, JSON Lines, SQL (PostgreSQL, MySQL, SQLite, SQL Server), XML, YAML, Markdown and HTML tables.
Are the passwords secure?
Passwords are created with the browser’s cryptographic random generator (crypto.getRandomValues) and never leave your device.