Test Card Generation Algorithm
Our credit card generator implements industry-standard algorithms to create valid test card numbers. Every generated number passes the Luhn algorithm check and follows specific format rules for each card type.
Core Features of Credit Card Generator
- Advanced Luhn algorithm implementation for number validation
- Precise card-specific prefix and length rules
- Smart expiry date generation system
- Secure cardholder name generation
- Card-type specific CVV generation
Comprehensive Card Type Support
- Visa test cards (4xxxxx format, 16 digits)
- Mastercard test numbers (51-55 prefix, 16 digits)
- American Express test cards (34/37 prefix, 15 digits)
- Discover test numbers (6011/644-649/65 prefix)
- JCB test card numbers (35 prefix, 16 digits)
- Diners Club test cards (300-305/36/38 prefix)
- Union Pay test numbers (62 prefix, 16-19 digits)
Security Features
All test credit card generation is performed locally in your browser. No sensitive data is transmitted to external servers, ensuring complete privacy and security for your testing needs.