OSFClone review
A focused, open-source choice for exact forensic disk imaging.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OSFClone is a free, open-source, self-booting utility for creating and cloning exact raw disk images. It is intended for forensic imaging rather than general-purpose drive migration, with support for FAT, NTFS, and USB-connected drives. The software works independently of the installed operating system and can boot from USB flash drives or CD/DVD media. Its core audience is forensic practitioners and other users who need sector-preserving images with accompanying verification and metadata.
The feature set is centered on preserving evidence detail. OSFClone retains unused sectors, slack space, fragmentation, and undeleted records, then creates images in raw, AFF, EWF, or dc3dd formats. It can compress created disk images and store forensic metadata with them. MD5 or SHA1 hash comparison between clones and source drives adds a direct verification step. Since the product is free and open source, its value is concentrated in this imaging capability rather than in paid plan differences or subscription packaging.
OSFClone also fits into PassMark Software’s related tooling through OSFMount, OSForensics, and ImageUSB. That ecosystem gives the product a clearer role in workflows involving image mounting, forensic analysis, and USB imaging. Its narrow scope is a strength when sector-by-sector preservation and forensic formats matter, but it is less suitable for users seeking a conventional desktop cloning experience or broad platform coverage. Choose OSFClone for raw forensic imaging and bootable media; choose another category fit when routine operating-system migration is the main goal.
OSFClone pros and cons
- Where it wins
- Preserves sectors, slack space, fragmentation, and undeleted records
- Supports AFF, EWF, raw, and dc3dd image formats
- Adds hash comparison, compression, and forensic metadata storage
- Where it doesn't
- Linux is the supported operating system
- Its forensic focus is narrower than everyday disk cloning
- Requires bootable USB or CD/DVD media for its self-booting workflow
OSFClone fact sheet, pricing and score →
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