Instacart is an online grocery marketplace that enables customers to order groceries from local stores and trusted grocers across North America, with options for same-day delivery or curbside pickup. The service connects users with personal shoppers who pick and deliver the items, offering contactless delivery and real-time order updates through the app or website. It operates across a wide range of departments and stores, providing access to a large catalog and price variations by retailer. Instacart also offers memberships and promotional features to reduce delivery fees and enhance shopping convenience.