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Knockoff

A free, fair-source browser extension that filters pseudo-brand junk out of Amazon search results. For Chrome and Firefox.

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Knockoff screenshot – image 1

Overview

A free, fair-source browser extension that filters trademark-squat pseudo-brands out of Amazon search results. Buy from real, established brands.

AI summary

Knockoff is a browser extension designed to filter out pseudo-brands from Amazon search results, allowing users to shop from established brands. It operates locally in the browser without requiring accounts or cloud lookups, and offers customizable filtering options based on user preferences.

Who Is It For

Best for

Users who frequently shop on Amazon and want to avoid untrustworthy brands, particularly those concerned about brand integrity and product authenticity.

Not for

Users who prefer a more traditional shopping experience without additional filtering or those who are comfortable with sponsored listings.

Strengths & Weaknesses

Biggest strength

The ability to filter out pseudo-brands using a locally run appraisal system that does not track user data.

Biggest weakness

Lack of visible pricing information or free trial options may limit accessibility for some users. (AI-inferred; may be outdated – founders can correct this)

Classification

Likely competitors
HoneyRakutenFakespot

Alternatives to Knockoff

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How we sourced this: Observed fields () were crawled from https://knockoff.co/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 14 July 2026. Is this your tool? Claim it to edit and get a do-follow badge.