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HDDScan vs CrystalDiskInfo: catalog facts
HDDScan	CrystalDiskInfo
Free Freeware with no paid edition.	Free Free and open source under the MIT licence.
Windows	Windows
Surface tests in read, verify and erase modes Shows SMART attributes and drive temperature	Plain Good, Caution or Bad verdict on top of the raw S.M.A.R.T. table Supports NVMe, many USB enclosures and some Intel RAID setups
Windows only RAID volumes and USB flash drives get surface tests only	Windows only A Good verdict does not mean a drive cannot fail tomorrow
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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