Fake Credit Card Numbers for Testing
Developers testing a checkout need card numbers that pass basic validation but are not real. Here is how these test numbers work and how to get one, for testing only.
What makes a card number "valid" for testing
Real and test card numbers pass the Luhn check, a simple math formula that catches typos. A fake credit card number for testing is Luhn-valid so it clears front-end validation, but it is not linked to any real account and cannot be charged.
Why developers use them
When building or testing a checkout form, you need to check that the form accepts a well-formed number, formats it correctly and handles errors, without touching a real card. Test numbers let you do that safely.
Important limits
- These numbers are for testing and demos only. They will not complete a real payment.
- For end-to-end payment testing, use the official test numbers from your payment provider (such as Stripe or PayPal sandbox).
- Never use a generated number to attempt a real transaction.
Generate test data
The fake name generator produces a Luhn-valid card number alongside a full identity. See how to generate fake test data.
Generate test data
A full fake identity including a Luhn-valid card number, for testing. Free.
Open Fake Name Generator →