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SeaTools vs DriveDx: catalog facts
SeaTools	DriveDx
Free Free download from Seagate.	Paid Paid license with a free trial download.
Windows	macOS
Official diagnostic tool from a drive manufacturer Quick health check for hard drives and SSDs	Detailed SMART health indicators for SSDs and HDDs Runs drive self-tests
Aimed mainly at Seagate drives Offers diagnostics rather than repair or recovery	macOS only Paid after the trial
Downloadable app	Downloadable app
Closed source	Closed source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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