Credit/Debit Card Validator
Detect card type and validate numbers instantly.
Card Holder
John Doe
Expires
12/25
How to use the Card Validator
- Select Credit or Debit card tab.
- Enter your card number in the realistic card input field.
- The tool auto-detects the card type (Visa, MasterCard, etc.).
- Click Validate to check if the card number is valid.
- Results are shown via a toast notification.
What is a Card Validator?
A Card Validator is a tool used to check whether a credit or debit card number is valid. It performs two main functions: it identifies the card issuer (like Visa, MasterCard, or American Express) based on the card number's prefix, and it uses the Luhn algorithm to verify that the card number follows the standard checksum formula. This helps in catching typos and fraudulent card numbers.
Why Use Our Card Validator?
- E-commerce and Developers: Quickly validate card numbers at the point of entry to reduce transaction errors.
- Data Entry: Ensure accuracy when manually entering card information.
- Fraud Prevention: Acts as a first line of defense against fake or randomly generated card numbers.
- Educational Tool: Learn about the structure of card numbers and the Luhn algorithm.
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