The best Hard Disk Diagnostic alternative to CrystalDiskInfo is GSmartControl, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to CrystalDiskInfo and many of them are Hard Disk Diagnostic Tools so hopefully you can find a suitable replacement. Other interesting Hard Disk Diagnostic Tool alternatives to CrystalDiskInfo are Hard Disk Sentinel, HD Tune, smartmontools and Victoria.
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.
Provides advanced monitoring for HDDs and SSDs with S.M.A.R.T. diagnostics, predicts hardware failures, schedules automatic backups, benchmarks drive performance, logs temperatures, repairs disk errors, supports tests, notifications, and multi-drive configurations.
HD Tune is a hard disk / SSD utility with many functions. It can be used to measure the drive's performance, scan for errors, check the health status (S.M.A.R.T.), securely erase all data and more!.
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.
Victoria is a small application designed to assess performance, test and perform minor repairs to your IDE drive and SATA HDD. It's designed primarily for HDD repairmen in stationary conditions and is not intended to test the system hard drive.
Advanced tool delivering real-time HDD and SSD health diagnostics, S.M.A.R.T. and failure indicator analysis, pre-failure alerts, temperature tracking, performance and health ratings, automatic health reports by email, history-based insights, and user-friendly interface.
HDDScan is a freeware utility for storage devices diagnostics (HDD, RAID, Flash). The program can scan storage device for bad blocks, show S.M.A.R.T. attributes and change some HDD parameters such as AAM, APM, etc.
Monitoring temperatures and status of system components such as CPU, GPU and hard disk drive, fan speeds
HDD Guardian provides a Windows front-end for smartctl, a utility which monitors your hard drive(s) and SSD(s) for health status, taking advantage of S.M.AR.T.
Samsung Magician software is designed to help you manage your Samsung SSD with a simple, intuitive user interface. Download files and find supported models.
Scrutiny is a Hard Drive Health Dashboard & Monitoring solution, merging manufacturer provided S.M.A.R.T metrics with real-world failure rates.
PassMark DiskCheckup allows the user to monitor the SMART attributes of a particular hard disk drive. SMART (Self-Monitoring Analysis and Reporting Technology) is a feature on a computer's hard disk for providing various monitoring indicators of disk reliability.
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Works pretty alright, enough for my needs, though there's some values where it will say "pre-failure" for even the values you get out-of-the-box with a new drive, something to be aware of.
To respond to the one negative comment, all drives will show as "unknown device" IF you don't run the program with admin privileges -- even my SATA HDDs and SSDs will display as "unknown device" if I do not have superuser privs.