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GSmartControl vs CrystalDiskInfo: catalog facts
GSmartControl	CrystalDiskInfo
Free Free and open source.	Free Free and open source under the MIT licence.
Windows, Linux	Windows
Highlights SMART anomalies automatically Runs drive self-tests from the interface	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
Depends on smartmontools being installed Beware of a phishing site using a similar name	Windows only A Good verdict does not mean a drive cannot fail tomorrow
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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