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Credit Card Generator

Generate test card numbers with real network prefixes and a valid Luhn check digit. Test data only: they aren't linked to any account and won't work for payments.

Output · 0 cards

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Loading issuer specs…

0 · ?
Issuers
7
Checksum
Luhn

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Guides

This credit card generator makes fake card numbers for testing checkout forms and payment screens. Pick one of 7 networks (Visa, Mastercard, American Express, Discover, JCB, Diners Club or UnionPay) and it builds a number with that network's prefix, the right length and a correct Luhn check digit. Each number also gets a random expiry date 3 to 60 months out and a random CVV.

The digits after the prefix are random. Nothing comes from a real card, and no number is linked to an account, so they won't go through a real payment. They're for checking that your form accepts a well-formed number and rejects a mistyped one. Using a generated number to attempt a real purchase is fraud.

Testing a payment provider's sandbox? Use the test card numbers that provider publishes. Sandboxes usually accept only their own.

What is a credit card generator?

A tool that produces numbers shaped like real card numbers: the right prefix (the BIN), the right length and a valid Luhn checksum. It saves developers from typing real card details into test systems. Typical uses:

  • Checkout form validation
  • QA test cases and fixtures
  • Demo and staging environments
  • Testing how a UI formats and masks card numbers

How to use the credit card generator

  1. Pick a network from the Issuer menu.
  2. Set Count, from 1 to 20. A new batch appears when you change either option.
  3. Click a card to copy its number, or use Copy numbers for the whole list.
  4. Click Regenerate for a fresh batch.

What each test number includes

  • A prefix from the network's ranges, for example 4 for Visa, 51 to 55 for Mastercard, and 34 or 37 for Amex.
  • The right length: 16 digits for most networks, 15 for Amex, 14 for Diners Club, and 16 or 19 for UnionPay.
  • A Luhn check digit computed from the other digits.
  • A random MM/YY expiry and a CVV (4 digits for Amex, 3 for the rest). Neither is checked against anything.

Example outputs

The layouts you'll see, with # standing for a random digit:

  • Visa: 4### #### #### ####
  • Mastercard: 5### #### #### #### (or 2### from the newer range)
  • American Express: 3### ###### #####
  • Diners Club: 3### #### #### ##

Frequently asked questions

Are generated credit card numbers real?

No. They follow the format rules, but no bank issued them and there's no account, cardholder or credit line behind them.

Will these numbers work in a payment sandbox?

Probably not. Most sandboxes only accept the test numbers listed in their own docs. Use those for sandbox charges and these for form and UI tests.

Can these be used for real transactions?

No. A bank will decline them, and trying is fraud. This tool is for testing software only.

Can I generate multiple card numbers?

Yes, up to 20 at a time. Copy numbers copies them one per line, without spaces.

Is this credit card generator free?

Yes, with no sign-up. The numbers are generated in your browser.

Built and maintained by Bipul Kumar. Found a wrong number or a broken result? Tell me and I'll fix it.