If you've ever shopped on Amazon or Bol.com, you've probably run into the same annoyance I have: you search for a product, and the results are absolutely littered with third-party sellers. Sometimes it's fine, but more often than not, you end up with weird shipping times, questionable return policies, or prices that make you wonder if you're buying from a parallel universe.
So, I built a browser extension to fix that.
Get started
Quinine can be installed from your browser's webstore directly:
If you run into any issues or have feedback, please send me a message through here
Why "Quinine"?
The name "Quinine" comes from the famously bitter compound in tonic water. Just like a bad shopping experience can leave a bitter taste, so can buying from dropshippers or random resellers. Quinine (the extension) is here to filter out those unwanted results and make your shopping a little less bitter.
What Does It Actually Do?
Quinine is a browser extension for Chrome and Firefox that automatically filters out products from third-party sellers on common webshops. With a single click, you can toggle the filter on or off. When enabled, you'll only see products sold directly by the platform themselves. No more sifting through endless listings from sellers you've never heard of.
There's a little badge at the top of the page to let you know if Quinine is working, and you can always turn it off if you want to see everything again.
Supported Websites
- Amazon (Excluding China, India & Turkey)
- Bol.com (NL, BE & FR)
If you're shopping on any of these platforms, Quinine's got your back.
How Does It Work?
Without getting too technical: Quinine works by filtering out products that aren't sold directly by the platform itself. It doesn't collect any data, doesn't track you, and does all its work right in your browser. No cloud, no analytics, no nonsense.
You just get a cleaner, more trustworthy shopping experience.
Statistics
One of the most satisfying parts of using Quinine is seeing just how much cleaner your search results become. In some cases, Quinine can reduce the number of items you see by up to 99%!
| Amazon.com | |||
|---|---|---|---|
| Searchterm |  |
 |
Reduction |
| Minecraft | 6.000+ | 1.000+ | 83.3% |
| Candy | 5.000+ | 700+ | 86.0% |
| Micro SD Card | 2.000+ | 193 | 90.4% |
| Sunscreen | 4.000+ | 919 | 77.0% |
*As calculated on 17-07-2025
| Bol.com | |||
|---|---|---|---|
| Searchterm | |
|
Reduction |
| Schoenen | 300.000+ | 12.778 | 95.7% |
| Banaan | 13.189 | 135 | 99.0% |
| Micro SD Kaart | 1.096 | 104 | 90.5% |
| Zonnebrand | 3.219 | 313 | 90.3% |
*As calculated on 17-07-2025
Why Bother?
I got tired of scrolling through endless listings from sellers I didn't trust, so I made something to fix it. If you're like me and just want to see the real deals, give Quinine a try. Your shopping cart (and your sanity) will thank you.
Happy shopping!