Credit Card Validator is a lightweight and portable software application whose only goal is to verify the validity of credit card numbers. It can be of great use if you have lost some old credit cards and need to find out whether they're worth looking for or not.

As there is no setup pack implied, you can put the executable file in any part of the hard disk and just click it to run. Another option is to save a copy of Credit Card Validator to a USB flash disk or similar removable storage unit, in order to run it on any workstation directly, as long as it has .NET Framework installed.

More importantly, the app does not modify Windows registry settings, nor create extra files on the disk, leaving it clean after removal.

The GUI is represented by a single with with a clear-cut look, where the "what you see is what you get" concept clearly applies, as there are no other options available, aside from the ones shown in the main frame.

All you have to do is type or paste a credit card number, and Credit Card Validator will automatically find out if it is still valid or not. There are no other noteworthy options available.

The application does not put a strain on PC performance, since it runs on low CPU and memory. We have not come across any stability issues in our tests, since it did not hang, crash or pop up error messages. However, it displayed several expired credit cards as being still valid. We also have to take into account that it has not been updated for a while.