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Knockoff
The Knockoff Chrome extension filters pseudo-brand products from Amazon search results.
About Knockoff
Knockoff is a browser extension available for Chrome, Firefox, and Safari that filters trademark-squat pseudo-brand products from Amazon search results. The public GitHub repository is a frozen snapshot with no further updates, as active development has moved to a private repository. This version runs entirely locally with no server network requests, using bundled brand lists and name heuristics to identify and flag suspicious listings. Users can adjust filter strictness and choose to hide, dim, or label filtered items, with custom allowlist and blocklist options available.
Key features
- Filters trademark-squat pseudo-brands from Amazon search results
- Runs entirely locally with no server network requests
- Offers three adjustable filter levels (relaxed, standard, strict)
- Lets users hide, dim, or label filtered product listings
- Includes custom allowlist and blocklist for brand control
- Adds brand verdict chips to Amazon product detail pages
Best for: Shoppers who want to avoid unestablished, trademark-squat brands when browsing Amazon.
Good for
- Operates entirely locally with no tracking or external server requests
- Uses a large bundled list of established brands for filtering
- Provides adjustable filter levels to match user preferences
Watch out for
- Public GitHub repository is a frozen snapshot with no further updates
- Active development is closed-source in a private repository
- Safari version requires Xcode and manual native app building for local use
Knockoff at a glance
- Category
- Lifestyle & Hobbies › Shopping & Deals
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Browser extension
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Knockoff alternatives
Tools and sites you could use instead, ranked by how closely they match.
Desenmascara analyzes links and domains for fraud signals such as phishing, fake stores and impersonation, and presents supporting evidence.
ComparisonTables provides detailed product comparisons with specifications, availability and pricing, plus sorting and filters.
PriceHistory tracks product prices across Amazon, Flipkart and Myntra, with price charts, low-price records and alerts.
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Knockoff FAQ
Does Knockoff send any data to external servers?
No, the public repository version runs entirely locally with zero network requests to Knockoff servers.
How do I install the local build of Knockoff for Safari?
Open the provided Xcode project, build the native app wrapper, then enable the extension in Safari Settings > Extensions.
What actions can I take on filtered product listings?
You can hide filtered items, dim them, or label them, and click any badge to trust, block, show once, or report a misclassification.
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