Credit Card Validator

Example credit card numbers

Credit Card Type	Credit Card Number
American Express	371449635398431
Diners Club	30569309025904
Discover	6011111111111117
JCB	3530111333300000
MasterCard	5555555555554444
Visa	4916592289993918

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Credit card validator tool that checks if a given credit card number is valid and in the proper format. It can also check if the card is a valid type of card, such as Visa, Mastercard, American Express, etc.

The validation process typically includes checks for the proper length of the card number, the presence of the correct number of digits, and the use of the correct algorithm for generating the card's check digit.

Credit card validator also include the ability to check if the card is expired or if it is a valid number, but not yet been issued. This can be useful for online merchants or businesses that accept credit card payments, as it helps to prevent fraud and ensure that transactions are processed correctly.