[Osiris]

Self Image is an Open-Source hard disk imaging tool. It is capable of backing up hard drives or partitions even if those partitions or hard disks are not mounted in Windows. This means that it is for instance possible to backup a Linux partition in Windows using Self Image.
The interface looks clean and requires minimal user input to backup or restore partitions or hard drives. The user selects a source which can be either a file, i.e. a previously backed up partition or hard drive, a partition or hard drive or NBD, a network block device.
The same three can be selected for the output as well. If you want to backup a partition you would select the partition in Input and File in Output. I suggest to enable compression to save disk space. The build in multi-core support speeds up this process tremendously.
Self Image skips free space which reduces the size of the created backup and makes the entire process much faster.
One advantage of Self Image over many similar tools is the ability to create backups of partitions that are currently in use. I had to reboot Self Image once after installation before I was able to see my partitions in the software.
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Self Image