Credit Card Number Generator & Validator
Important Notice
These credit card numbers are for testing purposes only. They follow the Luhn algorithm but are not real cards and cannot be used for actual transactions.
Generate Test Card Numbers
Validate Card Number
Credit Card Format Reference
| Card Type | Starts With (IIN) | Length | Example |
|---|---|---|---|
| Visa | 4 |
13, 16, or 19 | 4532 7153 3790 4521 |
| MasterCard | 51-55 or 222100-272099 |
16 | 5425 2334 5678 9010 |
| American Express | 34 or 37 |
15 | 3782 822463 10005 |
| Discover | 6011, 644-649, 65 |
16-19 | 6011 0009 9013 9424 |
About Credit Card Number Generation
The generated numbers use the Luhn algorithm (also known as "modulus 10" or "mod 10" algorithm) which is used by all major credit card issuers. This algorithm helps detect accidental errors in card number entry.
- All generated numbers pass the Luhn check
- Numbers follow the correct format for each card type
- Proper prefix (IIN) ranges are used
- Correct length for each card type