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Rescuezilla vs O&O DiskImage: catalog facts
Rescuezilla	O&O DiskImage
Free Free and open source under the GPL.	Paid Commercial software sold by O&O Software, with a separate Enterprise edition for…
Linux	Windows
Images and backups are fully interchangeable with Clonezilla's in both directions Point-and-click interface instead of Clonezilla's text menus	Full system images as well as file and folder backups Aimed at recovery after ransomware, disk failure or a crash
You boot into it rather than running it from your desktop Whole-drive imaging is the wrong approach for everyday file backups	Windows only Paid, closed-source software
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.