Compare software

smartmontools vs CrystalDiskInfo: catalog facts
smartmontools	CrystalDiskInfo
Free Free and open source under the GNU GPL version 2.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows
Often gives advance warning of disk degradation before data is lost smartd monitors on a schedule and notifies you, rather than waiting to be asked	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
Command-line only; interpreting the attribute values takes some learning Attribute meanings vary by manufacturer and are not always documented	Windows only A Good verdict does not mean a drive cannot fail tomorrow
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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