Global Credit Card Validator
Validate credit card numbers and identify card schemes across the top 20 global payment networks using the Luhn Algorithm.
About Global Credit Card Validator
The Global Credit Card Validator by Box4.dev evaluates the mathematical integrity of the Primary Account Number (PAN) and automatically determines the underlying card scheme among 20 leading payment networks.
Validation is executed 100% locally in your browser using the Luhn Algorithm (ISO/IEC 7812 Mod 10) and IIN/BIN prefix resolution. The tool checks the control digit, assigned prefix ranges, and expected digit lengths.