Doyou is a Chrome extension designed to assist users in making more mindful purchasing decisions while shopping online. It caters to individuals who may tend toward impulsive buying by prompting them with a simple question: "Do you really need it?" when they attempt to finalize a purchase on popular e-commerce platforms like AliExpress.

The extension features a thoughtful shopping list management system that retains saved items for seven days. Users can access their saved products through the Doyou icon, which displays the name, site, and remaining days until deletion. The tool aims to enhance the shopping experience by encouraging users to reconsider their purchases, ultimately fostering more budget-conscious decisions without compromising privacy, as data is stored locally in the browser.