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CrystalDiskInfo vs DriveDx: catalog facts
CrystalDiskInfo	DriveDx
Free Free and open source under the MIT licence.	Paid Paid license with a free trial download.
Windows	macOS
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	Detailed SMART health indicators for SSDs and HDDs Runs drive self-tests
Windows only A Good verdict does not mean a drive cannot fail tomorrow	macOS only Paid after the trial
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
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.