Credit Card Number Validator

Check if a credit card number is valid using the industry-standard Luhn formula.

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Credit Card Validator

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Validate credit card numbers using the Luhn algorithm.

How It Works

  1. Enter the card number (spaces are allowed).
  2. Click "Validate Card".
  3. See if the checksum is valid.

Use Cases

  • E-commerce testing
  • Payment gateway integration debugging
  • Data entry verification

Frequently Asked Questions

Does this charge the card?

Absolutely not. This only checks the mathematical validity of the number sequence (checksum). It does not contact any bank.

Is it safe?

Yes, the validation runs locally on your device.

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