americanexpress.com
American Express issues its own cards and runs its own network, which is why Membership Rewards, Centurion lounges and its famous customer service stay in-house. Compare personal and business cards, from cash back to Platinum.
bankofamerica.com
Bank of America's official card center: compare cards, apply, or respond to a mailed pre-approved offer directly on bankofamerica.com.
capitalone.com/credit-cards
Capital One's full card lineup, from cash back and travel rewards to cards for building credit, with pre-approval that does not affect your score.
chase.com/sapphire
Chase's official Sapphire page: compare Sapphire cards and respond to a mailed Sapphire invitation directly on chase.com.
citi.com/credit-cards
Citi's card lineup including Double Cash and Custom Cash, two of the most recommended flat-rate and category cash back cards.
get.creditonebank.com
Credit One's official page for checking a mailed pre-approved offer: enter the approval code from your letter. Note that Credit One (credit-builder cards) is unrelated to Capital One.
creditcards.com
CreditCards.com has compared card offers since 1998: side-by-side rates and rewards, editor reviews and weekly APR tracking that shows where credit card interest rates actually stand.
discover.com/credit-cards
Discover's official card center: cash-back and miles cards, and the place to respond to a mailed Discover invitation number safely on discover.com.
mastercard.us
Mastercard's official site: compare card benefits across the network, from Standard to World Elite, and access Priceless experiences, travel protections and zero-liability coverage.
nerdwallet.com/best/credit-cards
Side-by-side credit card comparisons with plain-English reviews of rewards, APRs and fees. One of the most trusted starting points for picking a card.
thepointsguy.com
The best-known site for maximizing credit card points and miles: card reviews, transfer partner guides and award travel strategies.
visa.com
Visa's official site. Visa is accepted at over 100 million merchant locations worldwide; find card benefits, travel tools, and zero-liability fraud protection details for cards on the network.