Tariff Calculator for Amazon
I made a simple tariff calculator extension for Amazon. It queries gemini flash 2.0 to determine the category, and then matches it with the corresponding tariff category. Fun quick hack – it does brick a little – but the majority of the code was cobbled by a first pass of Claude Code Repo is here: https://github.com/mergd/amzn-tariff
Tariff Calculator for Amazon launched on April 30, 2025 with 35 votes, #678 of 7,818 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Tariff Calculator for Amazon is a browser extension that helps users understand import duties on Amazon products. It uses AI to identify product categories and automatically matches them with applicable tariff rates. The tool is designed for shoppers concerned about hidden tariff costs, though the maker notes it occasionally has performance issues. The extension is open-source and available on GitHub.
written from the facts on this page · September 2026
From the sources
who cares what amazon does I made a chrome extension where you can check the price yourself it checks if the product was made in china, and then determines which tariff schedule it falls under, and the corresponding price
Does a similar job
all alternatives →

ShadowBid - Chrome Extension2016 · chromewebstore.google.com · ▲111A simple way to save on Amazon with automated purchases
- IBI Built a Site to Track U.S. Tariff Updates in Real Time2025 · tariffstatus.com · ▲13
Hi I'm Ryan, the creator of Tariffstatus.com. I woke up wondering what tariffs were active and what was scheduled. However, when I started searching the web, it was a quagmire of news sites and long articles that didn't give me a simple and clear answer - the government sites were even worse. Also, I imagine they will be constantly changing. I wanted this for myself, but I'm also hopeful it helps others. I plan to keep it up to date. Many of these tariffs are having and will have a significant impact on both consumers and business owners. Trying to bring a bit of order to the chaos! I’d love…

More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, April 2025
the whole month →
Hi everyone, I built PyXL — a hardware processor that executes a custom assembly generated from Python programs, without using a traditional interpreter or virtual machine. It compiles Python -> CPython Bytecode -> Instruction set designed for direct hardware execution. I’m sharing an early benchmark: a GPIO test where PyXL achieves a 480ns round-trip toggle — compared to 14-25 micro seconds on a MicroPython Pyboard - even though PyXL runs at a lower clock (100MHz vs. 168MHz). The design is stack-based, fully pipelined, and preserves Python's dynamic typing without static type restrictions.…
Dev tools · 2025 · runpyxl.com

The Unsure Calculator is an online tool that lets you calculate with numbers you’re not sure about.
Life & fun · 2025 · filiph.github.io

https://the-pocket.github.io/Tutorial-Codebase-Knowledge/
AI · 2025 · github.com


