小省购物助手 is a free Chrome add-on designed to help users save money while shopping online. This tool specializes in uncovering hidden coupons and comparing prices across major e-commerce platforms like Taobao, JD.com, and Pinduoduo. Users can simply send product links or describe the item they wish to purchase, and the assistant will find the best available discounts and offers.

The main features of 小省购物助手 include its ability to search for hidden coupons by processing links from popular shopping sites and its price comparison function that evaluates multiple platforms to identify the lowest price for a specified product. While the price comparison feature is currently noted as not being fully precise, the tool aims to continuously improve in making online shopping more cost-effective for users.