CVV Generator & Validator
Generate secure test CVV/CVC numbers for all major card networks or learn how card verification values work.
Understanding CVV/CVC/CID
A Card Verification Value (CVV) is a security feature for "card-not-present" transactions (like online shopping). It proves that the person placing the order has physical possession of the card.
Industry Names
- Visa: CVV2
- Mastercard: CVC2
- Amex: CID (4 digits)
- Discover: CID (3 digits)
Why 3 or 4 Digits?
Most major networks use a 3-digit code printed on the signature strip on the back of the card. American Express uses a 4-digit Card Identification Number (CID) printed on the front, just above the main card number.
Security Tip: Real CVVs should never be stored by merchants. They are for one-time validation only.
Frequently Asked Questions
Is CVV the same as a PIN?
No. A PIN is for ATM or in-person "card-present" transactions. A CVV is specifically for online or telephone transactions.
Where is the CVV on Amex?
On American Express cards, the 4-digit CID is on the front, right above the card number. For Visa/MC, it's the 3-digit code on the back.
Can I use these for real shopping?
No. These are randomly generated codes for testing, educational, and developer purposes only. They will not work with real financial accounts.
What happens if I enter the wrong CVV?
The transaction will typically be declined by the issuing bank, even if the card number and expiration date are correct.