Snapcraft is a tool developed by Canonical that allows developers to create and manage Snaps, which are self-contained software packages. These packages can run on various Linux distributions, making it easier to distribute applications without worrying about dependencies or system compatibility. With Snapcraft, developers can build, test, and publish their applications in a streamlined process. The tool supports a wide range of programming languages and frameworks, enabling developers to package their software efficiently. This helps ensure that users can easily install and update applications on their systems.