tariff-lens.com

What It Is

Tariff Lens is a Chrome extension designed for U.S. online shopping. Its main purpose is to show how proposed Trump tariffs could affect product prices when browsing Amazon US, eBay, Temu, AliExpress, and Etsy. It is not a traditional developer API tool; rather, it is a browser-side information enhancement tool that displays the current price, post-tariff price, percentage increase, and additional dollar amount through an on-page overlay.

Core Features

The page highlights improvements in version v1.0.7 for Amazon product detection, claiming over 90% accuracy in identifying Amazon products. It also says the extension can estimate product origin even when the country of origin is not explicitly shown, using brand recognition and pattern detection across 100+ manufacturers. In addition, it can identify Made in USA products and mark their tariff impact as $0, helping avoid misclassifying U.S.-made goods as imports. For tariff rates, the page lists example rates for September 2025, such as 15% for the EU, 30% for China, and 15% for Japan.

Pricing and Requirements

The product page repeatedly states that it can be added to Chrome for free. No paid plan, subscription, enterprise edition, or payment method information was found. As for usage conditions, the page notes that it works best on U.S. versions of e-commerce sites, with English language settings and prices in USD. This means accuracy may be affected on non-U.S. sites, non-English pages, or when prices are not displayed in dollars.

Pros and Cons

Its advantages are a low installation barrier, direct integration into the shopping workflow, coverage of several major e-commerce platforms, and results shown in both dollar amounts and percentages, making it useful for understanding how policy changes may affect consumer prices. The drawbacks are also clear: the page does not disclose whether it is open source, how privacy and data processing are handled, whether any API/SDK is available, its browser compatibility range, or technical documentation. Its estimates depend heavily on country-of-origin detection and timely tariff-rate updates, so they should not be treated as final actual taxes or fees.

Who It’s For and Access from China

Tariff Lens is best suited for consumers shopping on U.S. sites who care about potential price increases on imported goods, as well as users studying the impact of trade policy. For Chinese users, the page does not provide information about network accessibility, payment, or localization. Since the tool requires U.S. sites, English, and a USD environment, access and usability from mainland China will depend on the Chrome Web Store, the target e-commerce sites, and the local network environment. At present, this can only be rated as unknown.