Generators
Credit Card Number Generator (Test)
Generate Luhn-valid test credit card numbers for QA and form testing.
Free foreverRuns in your browserNo sign-up
These are Luhn-valid test numbers for QA and form validation only. They are not real cards, carry no funds and cannot be used for payments.
Numbers pass the Luhn checksum used by payment forms, so they are perfect for testing input validation.
About the Credit Card Number Generator (Test)
Developers and testers need card numbers that pass a payment form's format and checksum checks without using a real card. This tool creates them.
Each number matches the chosen brand's prefix and length and passes the Luhn checksum, so it is accepted by validation code while carrying no funds and belonging to no one.
They are for testing input validation only and cannot be used for payments.
Key features
- Visa, Mastercard, American Express and Discover formats
- Luhn-valid check digit
- Bulk generation
- Clear test-only labelling
How to use
- 1Pick a card brand and how many numbers you need.
- 2Click Generate.
- 3Copy the numbers into your test forms.
Examples
Visa test number
Generates a 16-digit number starting with 4 that passes the Luhn check, formatted in groups of four.
Frequently asked questions
- Are these real credit card numbers?
- No. They are randomly generated test numbers that only satisfy the format and Luhn checksum. They are not linked to any account, carry no funds and cannot be used to pay for anything.
- Why do they pass validation?
- Payment forms check the card brand prefix, length and the Luhn checksum. These numbers are built to satisfy all three so you can test your validation logic.
- Can I use these to make a purchase?
- No. They will be declined by any real payment processor. They exist purely for testing and development.