ReviewLens — Fake Review Detector for Amazon, Walmart, eBay & Etsy

Spot fake reviews on Amazon, Walmart, eBay & Etsy. Authenticity score from review patterns + real Reddit sentiment. Free.

ReviewLens grades product reviews on Amazon, Walmart, eBay and Etsy from A to F, right on the product page. How it works Review bursts: flags weeks with more than five times the usual number of reviews. Five-star clustering: flags listings where more than 80% of ratings are five stars and almost none are two or three. Unverified buyers: flags listings where many reviews aren't verified purchases. Short, generic reviews: flags listings where most reviews are under 10 words. Reddit check: searches Reddit for real discussion of the product and shows you the threads. Price history: tracks the price each time you visit, so you can spot fake "sales". Every red flag is listed with the numbers behind it, and the full method is public at reviewlense.com/how-it-works. A Fakespot alternative: Fakespot shut down on July 1, 2025. ReviewLens works on more stores, including Etsy, and adds a Reddit check. Supported stores: Amazon US, UK, Canada, Germany, France, Japan, India and Australia; Walmart US; eBay US, UK, Germany, France, Canada, Australia, Italy and Spain; Etsy. Free, no account. ReviewLens doesn't collect personal data. It sends anonymous usage counts (never product IDs, page addresses or prices) that you can switch off in the popup.