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GSmartControl vs DiskSmartView: catalog facts
GSmartControl	DiskSmartView
Free Free and open source.	Free Freeware from NirSoft, free to use and redistribute without charge.
Windows, Linux	Windows
Highlights SMART anomalies automatically Runs drive self-tests from the interface	Shows temperature, power-on hours and error rates Supports external USB drives
Depends on smartmontools being installed Beware of a phishing site using a similar name	Official requirements stop at Windows 10 Supports IDE, SATA and USB disks only
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License: Freeware
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

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