CrystalDiskInfo
CrystalDiskInfo: A free Windows utility with detailed SMART, temperature, and SSD wear monitoring. Ranked #7 of 30 in Disk Health Monitoring Software by our editors (8.5/10); pricing: Free plan; best for free Windows SMART and SSD checks.
At a glance
- Editor score8.5 / 10
- PricingFree plan
- Best forFree Windows SMART and SSD checks
- Free planYes
- Paid fromFree
- SMART monitoringYes
- Facts checked23 Sep 2026
Where it wins
- Detailed SMART values with health states, temperatures, and graphs
- SSD remaining-life indicators and configurable temperature thresholds
- Resident monitoring with email alerts for supported drive events
Where it doesn't
- Windows-only platform scope
- USB, RAID, and controller compatibility varies
- Does not predict the exact date of drive failure
Our verdict on CrystalDiskInfo
CrystalDiskInfo is a free, open-source Windows desktop utility for monitoring HDD and SSD condition. It displays S.M.A.R.T. attributes such as current, worst, threshold, and raw values, alongside drive health, temperature, firmware, serial number, interface, power-on statistics, and other information. Its health states—Good, Caution, Bad, and Unknown—give users a direct way to review drive condition. It is suited to Windows users who want detailed local disk checks without a paid plan.
The product’s pricing is straightforward: it is free, with no paid tier described. Its strongest depth is in drive telemetry. CrystalDiskInfo can show SSD remaining-life and vendor-specific endurance indicators, display temperature thresholds, keep event logs, and plot drive data over time. Resident monitoring supports automatic refresh and alarm settings, while email alerts cover supported health and drive events. These capabilities make it useful for checking both current status and changes over time, although health warnings do not establish the exact date a drive will fail.
Platform fit is the main constraint. CrystalDiskInfo is designed for Windows, including desktop and Windows Server versions, and support extends to selected USB devices, Intel RAID configurations, and NVMe drives. Compatibility varies with external drives, controllers, and RAID arrangements, so it fits users whose hardware is supported rather than environments needing broad device coverage. Choose it for free, detailed SMART and SSD monitoring on Windows; consider an alternative if cross-platform access, wider integration, or more predictable controller compatibility is essential.
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CrystalDiskInfo pricing
CrystalDiskInfo fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| SMART monitoring | Yes |
| SSD wear tracking | Not verified |
| Temperature alerts | Yes |
| Failure warnings | Not verified |
| Remote monitoring | Not verified |
| Drives on cheapest plan | Not verified |
| Supported platforms | Windows XP/Vista/7/8/8.1/10/11 and Windows Server 2003/2008/2012/2016/2019/2022/2025; x86/x64/ARM64 |
| Deployment | Desktop |
| Platforms | Windows |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | crystalmark.info |
| Facts checked | 23 Sep 2026 |
Alternatives to CrystalDiskInfo
- Hard Disk SentinelA full-featured Windows and Linux monitor with diagnostics, alerts, backups, and remote management.9.4
- smartmontoolsBroad, free disk-health monitoring for technical users comfortable with command-line tools.9.2
- DA Drive AnalyzerA low-cost, cross-platform drive monitor with AI predictions and NAS coverage.9.0
See all CrystalDiskInfo alternatives →
CrystalDiskInfo vs the competition
- CrystalDiskInfo vs Hard Disk Sentinel
- CrystalDiskInfo vs smartmontools
- CrystalDiskInfo vs DA Drive Analyzer
- CrystalDiskInfo vs DiskMaster
- CrystalDiskInfo vs Scrutiny
- CrystalDiskInfo vs HDD Health Monitor
Compare CrystalDiskInfo with any tool side by side →
Also Ranked In
CrystalDiskInfo is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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