American Express Generate and validate American Express card numbers

A handy free service for validating and generating American Express numbers for testing. American Express numbers are usually 15 digits in length and start with 34 or 37. The validator will accept American Express with or without spaces but not with hyphens.

This service is provided for testing purposes only. It is not affiliated with any of the companies or brands for which it produces data. Provided "as is", without warranty, and used at your own risk.

American Express number generator

Click the button to generate a list of 10 random numbers.

American Express number validator