Compare software

SeaTools vs GSmartControl: catalog facts
SeaTools	GSmartControl
Free Free download from Seagate.	Free Free and open source.
Windows	Windows, Linux
Official diagnostic tool from a drive manufacturer Quick health check for hard drives and SSDs	Highlights SMART anomalies automatically Runs drive self-tests from the interface
Aimed mainly at Seagate drives Offers diagnostics rather than repair or recovery	Depends on smartmontools being installed Beware of a phishing site using a similar name
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: GPL-3.0
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 23, 2026

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