Top Alternatives to HD Tune

CrystalDiskInfo is a utility tool that can tell you about the hardware performance of your hard disk, including how likely it is to stop operating in the near future.

CrystalDiskMark is a disk benchmark software.

GSmartControl is a graphical user interface for smartctl (from smartmontools package), which is a tool for querying and controlling SMART.

Hard Disk Sentinel monitors and tests the health of your computer's hard disks.

Smartmontools (S.M.A.R.T. Monitoring Tools) is a set of utility programs (smartctl and smartd) to control and monitor computer storage systems using the Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) system built into most modern (P)ATA, Serial ATA and SCSI hard drives.

H2testw is a software is designed to detect the real capacity of USB flash disk or SD memory cards.

HDDScan is a Free test tool for hard disk drives, USB flash, RAID volumes and SSD drives. The utility can check your disk for bad blocks in various test modes.

Victoria is an experimental program to analyze your HDD, so you can see the health and the performance in detail. It can also perform surface tests.

DriveDx is an advanced drive health (S.M.A.R.T.) diagnostics and monitoring utility.