Partclone is a software tool used for disk cloning and backup. It allows users to create an image of a disk or partition, capturing all the data and file structures. This is particularly useful for system recovery, migration, or duplication of data across different storage devices. The tool works by copying only the used blocks of data, making the process efficient and faster than traditional cloning methods. Partclone supports various file systems, including ext2, ext3, ext4, and NTFS, making it versatile for different operating systems and environments.