SeaTools is a diagnostic tool that helps you determine the condition of the disk drive in your external hard drive, desktop or laptop computer.
Cost / License
- Free
- Proprietary
Platforms
- Windows




MHDD is described as 'The most popular freeware program for low-level HDD diagnostics' and is a hard disk diagnostic tool in the os & utilities category. There are more than 10 alternatives to MHDD for Windows, Linux, MS-DOS, Mac and BSD. The best MHDD alternative is GSmartControl, which is both free and Open Source. Other great apps like MHDD are HD Tune, Hard Disk Sentinel, Victoria and HDD Regenerator.
SeaTools is a diagnostic tool that helps you determine the condition of the disk drive in your external hard drive, desktop or laptop computer.




Lm-Sensors is a free and open-source application that provides tools and drivers for monitoring temperatures, voltage, and fans.



aka MHDD for Linux.
Sadly it's discontinued as well
Even visually it looks very similar to mhdd. Just check yourself

Most users think WHDD is a great MHDD alternative.
StableBit Scanner is a state of the art disk health monitoring tool.




Active@ Hard Disk Monitor is a disk utility that checks and monitors the status of your hard drives to help prevent data loss. The system is based on the Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.).




The aim of ViVARD is to examine the HDD to verify the integrity of each data sector and identify damaged or bad blocks. Compared to other programs, it has the main advantage to remap dead sectors.
DRevitalize is a program that repairs bad sectors (physical defects) on popular magnetic media (hard drives and also floppy drives to some extent) by generating a special sequence of high and low signals around the physically damaged area.

Pc-Check will scan for errors in all hardware components on the computer it is being deployed on and display diagnostic results. The software is bootable from CDs and USBs, so even if the OS won't start the program will still be able to run.




CheckDrive warns you before you lose all your data! Never be surprised by a hard drive failure again! Shows you the health status of your plates Informs you in case of problems.




Only monitors temperature, does not do any advanced monitoring or active tests