Credit Card Number Generator
Generate valid-format test credit card numbers for QA and development. Runs entirely in your browser, nothing is sent anywhere.
These numbers pass the Luhn checksum used to catch typos, same as real card numbers do. They are not issued by any bank and cannot be charged. For testing and QA only.
Need the opposite? Use Credit Card Validator
What is Credit Card Number Generator?
A credit card number isn't just random digits. It follows a fixed structure: a network prefix (Visa numbers start with 4, Mastercard with 51-55, and so on), an account number, and a final Luhn check digit that lets a system catch a mistyped or corrupted number before it even reaches a payment processor. This tool builds numbers that follow that exact structure and pass the same Luhn check real numbers do, so they behave correctly in any form validation, checkout flow, or test script you point them at. These are not real accounts. They cannot be charged, they aren't tied to any bank, and no purchase will ever go through with one. That's the point: you get realistic-looking, structurally valid test data without touching a real card number, which also keeps your test environment out of PCI DSS scope in the first place. Use it for payment-form validation testing, load/stress testing a checkout flow, seeding a QA or staging database, or building a demo that needs to look real without using anyone's actual financial data.
FAQ
No. They pass the same structural checks (network prefix, length, Luhn checksum) as real card numbers, but they aren't issued by any bank and aren't linked to any account. No charge will ever go through with one.
No. They will fail at any real payment processor, because they were never issued. They're only useful for testing form validation, checkout flows, and QA data.
Yes, for testing and development purposes. This is standard practice in QA and payments engineering. It would not be legal to use a generated number, or a real one, with intent to commit fraud.
Visa, Mastercard, American Express, and Discover, each generated with the correct prefix and length for that network.