HD Tune is not available for Mac but there are a few alternatives that runs on macOS with similar functionality. The best Mac Hard Disk Diagnostic Tool alternative is GSmartControl, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to HD Tune and three of them are Hard Disk Diagnostic Tools available for Mac so hopefully you can find a suitable replacement. Other interesting Mac Hard Disk Diagnostic Tool alternatives to HD Tune are smartmontools and DriveDx.
GSmartControl provides a GUI for smartctl from smartmontools, allowing users to monitor and control SMART data on hard drives. It supports health inspection, runs diagnostic tests, and warns about potential drive failures, ensuring maintenance and optimal disk performance.
The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks.
DriveDx is advanced drive health diagnostic and monitoring utility. Unlike most drive utilities, DriveDx does not only monitor the drive’s built-in S.M.A.R.T. status, but also analyzes the changes of all drive health indicators that are closely related to HDD or SSD failures...
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GSmartControl just carries all it takes control/check disks or SSDs for defects. Same for its cli part 'smartmontools'.