PiExt
Backup and restore tool for Raspberry Pi systems
Creates and restores compressed images of Linux EXT2, EXT3 and EXT4 partitions, including the boot partition and MBR, on Raspberry Pi systems.
PiExt provides a graphical user interface (GUI) for both creating and restoring images. Image creation is also available via the command line (CLI).
Instead of storing the complete filesystem partition, PiExt stores only the sectors currently used by the filesystem.