Credit Card Validator

To use Card Validator, Paste card no in the given input box below and click on validate credit card button.

Check your credit card number

  • Visa
  • Mastercard
  • American Express
  • Discover
  • JCB
  • Diners Club

Example credit card numbers

Credit Card Type Credit Card Number
American Express 371449635398431
Diners Club 30569309025904
Discover 6011111111111117
JCB 3530111333300000
MasterCard 5555555555554444
Visa 4111111111111111

Passed Validation Failed

Luhn Algorithm Check

We'll check your number against the Luhn Algorithm to see if it is a valid credit card number.

Major Industry Identifier

The first digit of a credit card number represent the category of entity which issued the card.

Issuer identification number

The first six digits of a card number identify the institution that issued the card to the card holder.

Personal Account Number

igits 7 to final number minus 1 (the last is the checksum) indicate the individual account identifier.

About Credit Card Validator

Credit Card Validator helps implementing validations for the credit cards, variety of identification numbers such as credit card numbers, IINs (Issuer Identification Numbers) and BINs (Bank Identification Numbers), prefixes, etc through the Luhn algorithm.

The algorithm used in Credit Card Validator is the Luhn algorithm or mod 10 algorithm which is a simple checksum formula that determines the validity of a card using the account number and checksum digits. It supports all major credit card brands such as VISA, MasterCard, American Express, Diner's Club, JCB.

credit card validator

How does a credit card validator work?

The working principle of a Credit Card Validator is very simple as it uses the Luhn Algorithm to determine the validity of a card using the account number and checksum.

There are two ways that a credit card validator works:-

Manual Validation

  1. Write down the last digit of your credit card which is the checksum digit that helps to check the remainder.
  2. List each digit of your credit card number, starting with the left of the checksum and moving to the left.
  • If you have a credit card with 16 digits, just double the amount of each digit from right to left.
  • If you have a credit card with 15 digits, just double the results of digits in a number greater than 10, add the two digits of the new number together, and write that result into your list.

For example, if the number on the card is 7, duplicating it will be 14. And the sum of the two digits will be five.

  1. Total your list of numbers while excluding the checksum digit. The credit card has a valid number if the total can be divided by 10 and if not then do not process the credit card transaction.

Online validation

  1. Visit online credit card validation service using our tool.
  2. Entry the type of credit card, card number, and expiry date and submit it to validate your credit card.
  3. Just wait for the validation confirmation from the website. If the credit card is found to be valid then it validates the card, else could not process the transaction.

Credit card Types and Format

There are four major credit card types used worldwide are American Express (Amex), Discover, Mastercard, and Visa. The two of the major credit card networks Amex and Discover issue their own credit cards to customers whereas Mastercard and Visa networks are issued by a secondary bank or other financial organizations.

The format of the credit card types is constantly changing, but most cards share several features like the issuer name, the network, the cardholder’s name, and the card number.

1) Credit Card Issuer is the bank that issued the credit card.

2) Credit Card Name is the name of this particular credit card. The card name begins with the name of the issuing bank followed by the particular card name

3) Credit Card Network is the credit card network responsible for processing payments made with the card i.e. Visa, Mastercard, American Express, Discover.

4) Cardholder Name is the name of the owner of the card.

5) Credit Card Number is the identifying number stored in the magnetic strip.

6) Chip EMV Technology holds the cardholder’s information

7) Date Of Account Opening is the time when a credit card account was opened.

8) Expiration Date is the date at which this particular card will expire.

9) CVV Security Code is at the back of credit cards and is a fraud-prevention tool, used for unauthorized transactions. CVV code is a three-digit number for Visa, Mastercard, Discover, and a four-digit number for Amex.

10) Magnetic Stripe is at the back of the credit card that holds all of your account information.

Example of Credit Card validator

There are many Credit Card validators available online and are safe to use and all the calculations are performed in your browser so that your credit card number remains safe.

This tool uses the Luhn algorithm, which is an error-checking algorithm supported by all popular credit card brands, to verify each card numbers length as well as validity. You can validate single card numbers and get the output one after another.

To validate credit card, we should know the credit card types

For Visa Credit Card - 4XXX XXXX XXXX XXXX

For MasterCard Credit Card - 5XXX XXXX XXXX XXXX

For Discover Credit Card - 6XXX XXXX XXXX XXXX

For American Express Credit Card - 3XXX XXXX XXXX XXXX

For Diner’s Club Credit Card - 30XX XXXX XXXX XXXX

For JCB Credit card - 35XX XXXX XXXX XXXX

Advantages of credit card validator

The main benefits of using a credit card validator are:-

  • It only checks the main industry identifier or MII, the personal account number, and the issuer identification number.
  • No risk of data leak and is safe to use
  • Prevents fraud and maximizes credit card sales
  • Saves time by performing the checksum calculations
  • Gets immediate results in no time


Credit Card Validator provides validation utilities to fetch the result by providing credit card data inputs. It also provides a determined card type for validation in which you wish to render an accompanying payment method (Visa, MasterCard, JCB, Discover and much more, etc)

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