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HDDScan vs DiskSmartView: catalog facts
HDDScan	DiskSmartView
Free Freeware with no paid edition.	Free Freeware from NirSoft, free to use and redistribute without charge.
Windows	Windows
Surface tests in read, verify and erase modes Shows SMART attributes and drive temperature	Shows temperature, power-on hours and error rates Supports external USB drives
Windows only RAID volumes and USB flash drives get surface tests only	Official requirements stop at Windows 10 Supports IDE, SATA and USB disks only
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Freeware
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

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