Credit Card Validator
Validate credit card numbers using the Luhn algorithm and identify card types
â ī¸ Security Notice
This tool validates the format and checksum of card numbers only. It does not verify if a card is actually active or belongs to anyone. Never share real credit card information on unsecured websites. The test numbers provided are for testing purposes only.
âšī¸ How It Works
Luhn Algorithm: A checksum formula used to validate card numbers. It detects single-digit errors and most transpositions.
Card Type Detection: Identifies the card network based on the Issuer Identification Number (IIN), the first 6 digits of the card.