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nwipe vs HDDScan: catalog facts
nwipe	HDDScan
Free The open-source application is available without a license fee.	Free Freeware with no paid edition.
Linux	Windows
Parallel drive erasure with a text interface	Surface tests in read, verify and erase modes Shows SMART attributes and drive temperature
Erasure destroys the selected drives' contents.	Windows only RAID volumes and USB flash drives get surface tests only
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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