You’ve surely noticed that when browsing Amazon, most of the brand names are not ones you recognize. In fact, they’re mostly not names at all, just a series of seemingly random letters mashed together. And even if the product does show up, the fly-by-night operation behind it probably won’t be around to offer support or a replacement when it breaks. A browser extension called Knockoff is meant to save you from those, well, knockoff products in the first place. Built by developer Josh Pigford, the extension, which is available for Chrome and Firefox, went viral this week when he posted it on X—which is probably indicative of just how many people have had the same “What the f**k is this brand?” thought pop into their heads while scanning Amazon. When activated, Knockoff will dim listings on Amazon that appear to be from some random upstart that will actually ship you an imitation product. Knockoff is now live! Filter out the knockoff crap brands on Amazon. Sorry to brands like WNPETHOME, EHEYCIGA, YXYL, LU&MN, JOYIN, TOMY, GODONLIF, YOOJEE, LINGTENG, LANEIGE, VISCOO, BIODANCE, COOFANDY, BALENNZ, TOSY and LUENX.https://t.co/9mLk0EAsfG https://t.co/K07lMkepOW — Josh Pigford (@Shpigford) July 7, 2026 In a conversation with 404 Media, Pigford explained that the first thing the extension looks at is the brand name. Have a bunch of consonants or vowels strung together in a nonsensical way? You’re probably getting dimmed. But there’s also a community-supported block list where users can flag knockoff brands to make sure other users are aware not to buy (or report when a real brand has gotten caught in the crossfire).