Krupuk (Javanese) is a cracker made from starch or animal skin and other ingredients that serve as flavouring. Most krupuk are deep fried, while some others are grilled or hot sand fried. They are popular snacks in maritime Southeast Asia, most closely associated with the culinary traditions of Indonesia, in particular Javanese cuisine. It is a ubiquitous staple in its country of origin and has spread to other countries either via the migration of diaspora populations or exports.

A cracker is a flat, dry baked biscuit typically made with flour. Flavorings or seasonings, such as salt, herbs, seeds, or cheese, may be added to the dough or sprinkled on top before baking. Crackers are often branded as a nutritious and convenient way to consume a staple food or cereal grain.