Credit Card Check Tool
Credit Card Checker Tool instantly check credit card number for validity. It verifies MasterCard, Visa, Carte Blanche, Diners Club, EnRoute, American Express (AMEX), Discover, JCB and other credit card numbers. Credit Card Check Tool utilizes LUHN10 algorithm (except EnRoute) and first card...
http://www.onlineinvestingsite.com/download/ccctool.exe - 272Kb - Download - Screenshot

Credit Card Verifier
Credit Card Verifier allows you instantly check all major credit cards number for validity without submitting the card number online. Credit Card Verifier can validate any VISA, MasterCard, Diners Club, Carte Blanche, EnRoute, American Express (AMEX), Discover, or JCB credit card number. ... In order to verify a credit card account, you will need software that can access credit card networks, and, typically, submit authorization request on the card account. ... If you need to charge credit cards and validate credit card accounts, please look into a merchant provider such as Authorize.
http://www.credit-card-verifier.com/download/credit-card-verifier.exe - 292Kb - Download - Screenshot

Easy Credit Card Verifier
Easy Credit Card Verifier instantly checks credit card numbers for validity using LUHN10 algorithm. Using this software you may check MasterCard, VISA, Diners Club, EnRoute, Carte Blanche, AMEX, Discover, or JCB credit card numbers without submitting them online.
http://www.ashkonsoftware.com/download/ecverify.exe - 363Kb - Download - Screenshot

Easy Credit Card Checker
Easy Credit Card Checker allows you instantly check credit card number for validity. It can verify Visa, MasterCard, Diners Club, Carte Blanche, EnRoute, American Express (AMEX), Discover, JCB and other credit card numbers. Easy Credit Card Checker uses LUHN10 algorithm (except EnRoute) as well...
http://www.filesland.com/download/acccheck.exe - 272Kb - Download - Screenshot

CardCheck
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... It checks the leading digit(s) is correct for that card type, 3. ... It checks the validity of the number structure against the internal credit card checksum.
http://www.dijialbum.com/download/cardchck.exe - 414Kb - Download - Screenshot

Credit Card Number Validator
Credit Card Number Validator is a free utility to help you check validity of a credit or debit card number. Credit Card Number Validator verifies credit or debit card numbers right on your PC without going on-line or transmitting sensitive information from your PC. ... It only verifies whether or not a credit or debit card checksum is valid; it does not validate the credit or debit card account. ... In order to verify a credit or debit card account, you will need software that can access credit and debit card networks, and, typically, submit authorization request on the card account.
http://www.soft911.com/CCV/validator.exe - 358Kb - Download - Screenshot