Cardholders of Visa gift cards can check their balances at GiftCards.com and GiftCardMall.com. Gift Cards asks for the card's 16-digit number plus the security code. The site also allows users to check balances for gift cards from Wal-Mart, Starbucks, Barnes & Noble, Best Buy and other retailers, according to GiftCards.com.
Gift Card Mall allows holders of Visa gift cards to check their balances, review their transactions using the card, activate their cards or change their card's PIN. With registration at the site, Visa gift cardholders can also manage multiple gift cards in one place and receive discount offers for purchase of new gift cards, as Gift Card Mall explains.