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Hard Disk SentinelDiskSmartView
Freemium

A limited free version exists. The Professional edition is a paid licence.

 Free

Freeware from NirSoft, free to use and redistribute without charge.

Windows, Linux Windows
  • Health and estimated lifetime per drive rather than raw S.M.A.R.T. values
  • Sees drives behind many USB enclosures and RAID controllers
  • Shows temperature, power-on hours and error rates
  • Supports external USB drives
  • The free version is limited; most features need the paid Professional edition
  • 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
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked October 8, 2026

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