Sandientu.vn, also presented as Sàn Điện Tử, is a Vietnam-wide online classifieds and buying-and-selling platform. It enables users to post listings for free and browse offers by category or location, connecting people seeking products, services, jobs, and business opportunities. Its categories include real estate, employment and recruitment, cars, motorcycles, electronics and appliances, education and training, services, household goods, community listings, and partner searches. Visitors can explore listings from across Vietnam, with locations covering major cities and provinces, or search all categories in one place.

The site features recently posted, highlighted, and popular advertisements, with examples ranging from property and vehicle rentals to air conditioners, electrical cables, and other goods. Sandientu.vn also publishes practical blog content about online business, effective listing strategies, and real estate advertising. The platform offers options to register, sign in, submit an advertisement, and review information about premium listings and banner advertising. Sandientu.vn states that it transmits listing information and does not accept responsibility for the content of individual advertisements.