Giassi Supermercados is a Brazilian grocery retailer offering online shopping and a network of physical stores. Its website helps customers shop quickly, create a shopping list, browse featured deals, and choose a preferred store to see locally applicable online prices. The assortment spans everyday food and household needs, with products from well-known brands.

Shoppers can find meat and poultry, deli items, dairy products, pantry staples, snacks, and beverages, alongside personal care and cleaning products. Examples shown include Sadia chicken and sausage, Tirol milk and butter, Coca-Cola and Sprite soft drinks, Comfort fabric softener, and Clear shampoo. Giassi also promotes special offers and invites customers to sign up to receive them.

The company provides information about store locations and hours, online sales, payment and security, delivery policies, exchanges and returns, and customer support. Additional resources include a Giassi card, televendas, news, frequently asked questions, and an ombudsman channel. Online prices and conditions are shown for the selected store after login and may differ from those in physical locations