CC Check

CC Check is a lightweight, menu bar applet to help busy users verify credit/bank card numbers on the fly. No internet connection required. CC Check users the Luhn algorithm and can verify the following card issuers:

• Visa
• MasterCard
• Discover
• American Express
• Diner Club
• Maestro
• JCB
• and more!

Save yourself time and peace of mind with CC Check!

Note: This is a very simple test and cannot verify that valid card numbers are active or have actually been issued by a bank or credit card agency.