Credit Card Validator
NEWValidate credit card numbers using the Luhn algorithm. Identify the card type (Visa, Mastercard, Amex, Discover) and check if the number is valid.
Card Type
Unknown
Formatted Number
Length
Luhn Check
→ Send output to:
Advertisement
How to use Credit Card Validator
- Enter a credit card number (with or without spaces).
- Click Validate.
- See if the number passes the Luhn check.
- View the identified card type.
What is Credit Card Validator?
This tool validates credit card numbers using the Luhn algorithm (also known as the 'mod 10' algorithm), which is the standard checksum formula used to validate card numbers. It also identifies the card type based on the number prefix.
This is for educational and validation purposes only — it does NOT verify if a card is real, active, or has funds. No data is sent to any server.
Advertisement
FAQ
- What is the Luhn algorithm?
- The Luhn algorithm is a simple checksum formula used to validate identification numbers like credit cards. It catches accidental errors like mistyped digits.
- Does this verify if a card is real?
- No — this only checks if the number format is valid using the Luhn algorithm. It cannot verify if a card exists, is active, or has funds.
Related tools
Last updated: