BuyLens - Know Before You Buy

BuyLens is a shopping companion that helps you quickly understand a product without opening the detail page. If you shop on Amazon, Taobao, Tmall or JD, you know the routine: a listing looks good, but you are not sure until you scroll through pages of reviews. BuyLens runs as a side panel right on the product page. It gathers the key details and the reviews people actually left, then an AI model gives you a plain-language summary: what buyers like, what they complain about, and whether it is worth your money. What it does: - Reads the product page you are already on - no copy-pasting links or text. - Summarizes the overall sentiment and the most common pros and cons. - Gives a clear verdict (worth considering, caution, not recommended) so you do not dig through hundreds of comments yourself. - Shows buyer-uploaded photos for some platforms, so you get a real look at the item. - Supports simplified Chinese, traditional Chinese and English. How the AI works: - BuyLens offers a managed LLM proxy: sign in with your email (free) and get a daily analysis quota - no API key to manage. - Prefer full control? Bring your own key. It works with any OpenAI-compatible https service: OpenAI, DeepSeek, or any Anthropic-compatible provider. Your key stays on your device and is only sent to the endpoint you choose. Supported sites: Amazon (US, UK, Canada, Australia, India, Singapore), Taobao, Tmall, JD.com. About permissions: BuyLens only runs on the shopping sites listed above. If you save a custom AI endpoint that is not in the built-in list, Chrome will ask whether to allow access to that address. That is a one-time, optional grant for the endpoint you set - the extension does not ask for access to every website by default. Disclaimer: BuyLens is an independent, unofficial tool and is not affiliated with, endorsed by, or sponsored by Amazon, Taobao, Tmall, or JD.com. All product names and trademarks are the property of their respective owners and are used only to identify the sites this extension supports.