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GNU ddrescue vs HDClone: catalog facts
GNU ddrescue	HDClone
Free Free and open source, part of the GNU Project.	Freemium A limited free edition is available. Higher editions are paid.
macOS, Linux, Command line	Windows
Handles read errors so as little data as possible is lost Scrapes good sectors out of partially readable blocks	Boots from its own medium, so the system disk can be cloned safely Handles copying onto a smaller target drive
Command-line only, with no graphical interface Copies raw blocks and does not recover individual deleted files	The free edition is speed limited and lacks most features Windows only, closed source
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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