smartmontools vs HDDScan: catalog facts
 smartmontools |  HDDScan |
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Free Free and open source under the GNU GPL version 2. |
Free Freeware with no paid edition. |
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Windows, macOS, Linux, Command line |
Windows |
- Often gives advance warning of disk degradation before data is lost
- smartd monitors on a schedule and notifies you, rather than waiting to be asked
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- Surface tests in read, verify and erase modes
- Shows SMART attributes and drive temperature
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- Command-line only; interpreting the attribute values takes some learning
- Attribute meanings vary by manufacturer and are not always documented
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- Windows only
- RAID volumes and USB flash drives get surface tests only
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Downloadable app |
Downloadable app |
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Open source |
Closed source |
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License: GPL-2.0 |
License not stated |
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No account needed |
No account needed |
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Works offline |
Works offline |
Checked September 21, 2026 | Checked September 23, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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