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HDDScan vs Scrutiny: catalog facts
HDDScan	Scrutiny
Free Freeware with no paid edition.	Free Free to download and self-host.
Windows	Linux, Web, Self-hosted
Surface tests in read, verify and erase modes Shows SMART attributes and drive temperature	Historical S.M.A.R.T. trends per drive Failure thresholds based on real world data
Windows only RAID volumes and USB flash drives get surface tests only	Needs a server and a collector with drive access Focused on drive health only
Downloadable app	Self-hosted
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
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 23, 2026

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