Keepa - Amazon Price Tracker
Shopping
Adds price history charts and the option to be alerted on price drops to all supported Amazon sites.
Users
4M
Rating
4.7
Reviews
5,113
7D Growth
0|0%
Growth signalFree or hybridMedium-risk permissions
Knockoff - Amazon Brand Filter
Filters pseudo-brand junk out of Amazon and can hide sponsored listings. Buy from real, established brands.
Users100KCurrent public install base
Rating4.8Store average score
Reviews127Public review volume
Manifest versionV3Extension platform version
7-day growth+30KNet users gained this week
7-day growth rate+42.9%Relative weekly velocity
Preview
6 assetsKnockoff - Amazon Brand Filter Media preview
Trend
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User Growth Over Time
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7-day rating trend
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7-day rating change
Start
4.78
Latest
4.82
7-day rating change
+0.04
2026年7月18日2026年7月24日
Growth overview
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1-day growthNo data
----7-day growthGrowing
+30K+42.9%30-day growthNo data
----Technical snapshot
Version, languages, and crawl freshness
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Version0.1.0
ManifestV3
Size72.54KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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Amazon is flooded with trademark-squat "brands": SZHLUX, HORUSDY, LATTOOK, DOZAWA... random strings registered purely to unlock Amazon Brand Registry, selling commodity goods with no company, no warranty, and no reputation behind them.
Knockoff detects those listings and hides, dims, or labels them, right in the search results. Buy from real, established brands, even when that means paying more.
HOW IT WORKS
Every product tile's brand is checked locally, on your device:
• Your personal allowlist and blocklist always win
• A curated list of ~5,000 established brands, plus the community AmazonBrandFilterList, refreshed daily
Reviews
Recent review snapshot
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Store average score4.8Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.7Average computed only from synced review bodies below
Reviews with text73Synced review bodies
Total ratings / reviews127Chrome Web Store public rating/review count
Store average score: 4.8. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Fantastic extension. Filter the knock-off garbage on Amazon.
Perfect.
Outstanding. So glad I found this and don't have to deal with nonsense garbage brands anymore.
Pretty much has everything I would have asked for in an extension, however the website shows it can block sponsored results via a setting. It appears to have no function nor setting for this.
Does exactly as stated. Highly Satisfied.
Discovered this from an X post and it’s exactly what I was hoping for. Knockoff does a great job cleaning up Amazon search results by dimming or completely hiding those sketchy pseudo-brands (the random all-caps names that flood results). The filter levels (Relaxed / Standard / Strict) work well, and the ability to quickly add your own trusted or blocked brands is a nice touch. It feels like shopping on a much cleaner version of Amazon. What really stands out though is how privacy-respecting it is. After looking into the permissions, this extension is extremely minimal — it only asks for local storage. No broad tab access, no scripting on other sites, no web request monitoring, and no tracking or accounts. Everything processes locally in your browser. It only makes one cached daily request to its own API for brand list updates and supports optional anonymous reports. The Firefox version even explicitly declares no data collection. It’s also fully open source (FSL-1.1-MIT, converting to MIT) here: https://github.com/Shpigford/knockoff If you’re tired of wading through questionable brands on Amazon, this is a solid, trustworthy tool. Clean results with strong privacy — highly recommended.
Works exactly as advertised and helps eliminate the flood of garbage that makes browsing Amazon so insufferable so much of the time. It's a great idea and well-executed.
Top tier. Love it!
Fast and unobtrusive. Makes Amazon much easier to use when shopping for generic products and everyday essentials. Developer did a good job balancing visibility on the page without taking over and breaking the website.
It simply works. Excellent extension to have.