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CrystalDiskInfo vs SeaTools: catalog facts
CrystalDiskInfo	SeaTools
Free Free and open source under the MIT licence.	Free Free download from Seagate.
Windows	Windows
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	Official diagnostic tool from a drive manufacturer Quick health check for hard drives and SSDs
Windows only A Good verdict does not mean a drive cannot fail tomorrow	Aimed mainly at Seagate drives Offers diagnostics rather than repair or recovery
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Proprietary
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 21, 2026	Official website Full listing and sources Checked September 24, 2026

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