GSmartControl is described as «Smartctl GUI that supports controlling hard drive Self-Monitoring, Analysis, and Reporting» and is a popular hard disk diagnostic tool in the os & utilities category. There are more than 25 alternatives to GSmartControl for a variety of platforms, including Windows, Linux, Mac, BSD and PortableApps.com. The best alternative is CrystalDiskInfo, which is both free and Open Source. Other great apps like GSmartControl are HD Tune, smartmontools, Disks and HDDScan.GSmartControl alternatives are mainly Hard Disk Diagnostic Tools but may also be Benchmark Tools or Hard Disk Benchmark Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of GSmartControl.