Credit card authorisation software: Manage your credit cards, Start Your Own Online Virtual Credit Card Biz, A free program chock full of financial advice and more.
CardCheck verifies credit card numbers to ensure they are genuine. CardCheck supports: Visa, MasterCard, American Express, Diners Club and Discover cards. Cards can be checked individually or in batches. It performs three functions: 1. It checks the number of digits is correct for that card type, 2. It checks the leading digit(s) is correct for that card type, 3. It checks the validity of the number structure against the internal checksum
