Credit Card Validator

Validate whether a card number is mathematically well-formed using the Luhn checksum used by all major card networks, and detect the likely card type.

Card number

Formatted4532 0151 1283 0366

Detected typeVisa

Luhn checksumValid

This only checks whether the number is mathematically well-formed (the Luhn algorithm used by all major card networks) — it does not check whether the card actually exists, is active, or has funds. Never enter a real card number into a tool like this.

Example input

4532015112830366

Example output

Visa — valid Luhn checksum