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Credit Card Validator (Luhn)

Validate credit card numbers using the Luhn algorithm. Detects card brand (Visa, Mastercard, Amex, Discover, Diners, JCB) and checks digit validity.

Developer Tools Finance & Money 13,000

Test Cards

Visa: 4111 1111 1111 1111

Mastercard: 5500 0000 0000 0004

Amex: 3782 8224 6310 005

Discover: 6011 1111 1111 1117

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