Carter's, online at carters.com, save money on hot items when shopping on Carter's when applying our coupons, promo codes during checkout. Trust us, these coupons are good. Make the best of our Carter's promo codes to get 25% OFF. All discounts are totally free to use. Carter's, Inc., also known as the William Carter Company, is a major American manufacturer of children's apparel. It was founded in 1865 by William Carter. Previously, the company also made underwear for adults. Carters acquired competitor OshKosh B'Gosh in 2005.