Capital One Shopping is the extension formerly known as Wikibuy, acquired by Capital One in 2018 and reopened to the general public — no Capital One credit card required to sign up or earn. Its rates aren't the highest, but its coupon-testing engine and Amazon third-party seller price-comparison are the strongest in the category, and everything is denominated in dollar-equivalent Shopping Credits redeemable for gift cards.
Install the Capital One Shopping browser extension or mobile app — no Capital One account required.
Shop normally at any of the 30,000+ covered merchants; the extension auto-tests coupon codes at checkout and applies the best one.
On Amazon product pages, it flags cheaper listings from Walmart, Target, or third-party sellers with equivalent shipping.
Cashback accrues as Shopping Credits at $1 per credit, redeemable for gift cards to major retailers once you hit $5.
Shoppers who want zero-effort savings and don't care about cash payouts. The Amazon price-compare feature alone is worth installing even if you never use the cashback side.
Payouts are gift-card only — no PayPal, no bank transfer. Rates on named stores also tend to trail TopShoppa, Rakuten, and TopCashback by 1–3% because coupons are the primary product here.
The best cashback extension for people who won't remember to visit a portal. A weaker choice if you specifically need cash back rather than gift-card credit.