Compare software

SeaTools vs CrystalDiskInfo: catalog facts
SeaTools	CrystalDiskInfo
Free Free download from Seagate.	Free Free and open source under the MIT licence.
Windows	Windows
Official diagnostic tool from a drive manufacturer Quick health check for hard drives and SSDs	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
Aimed mainly at Seagate drives Offers diagnostics rather than repair or recovery	Windows only A Good verdict does not mean a drive cannot fail tomorrow
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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