GSmartControl vs HDDScan

GSmartControl8.7Visit HDDScan8.0Visit

Higher score GSmartControl #4 in Disk Diagnostic Software 8.7/10 Free plan Free plan✓ 0 of 5 features Visit GSmartControl

vs

HDDScan #8 in Disk Diagnostic Software 8.0/10 Free plan Free plan✓ 0 of 5 features Visit HDDScan

• GSmartControl fits best

  Graphical SMART diagnostics across desktops

• HDDScan fits best

  Free technical Windows diagnostics

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Side by side

Feature	GSmartControl 8.7/10 Visit ↗	HDDScan 8.0/10 Visit ↗
At a glance
Editor score	8.7	8.0
Ranking	#4 in Disk Diagnostic Software	#8 in Disk Diagnostic Software
Best for	Graphical SMART diagnostics across desktops	Free technical Windows diagnostics
Pricing model	Free	Free
Starting price	Free plan	Free
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows, macOS, Linux	Windows
Support	Docs	Email
Built for	Solo, Small business	Solo, Small business
Features GSmartControl 0/5 · HDDScan 0/5
Bad-sector scan	Not checked yet	Not checked yet
Read/write testing	Not checked yet	Not checked yet
Surface scan	Not checked yet	Not checked yet
Bootable media	Not checked yet	Not checked yet
SMART tests	Not checked yet	Not checked yet
Specs
Platform	Not checked yet	Not checked yet
Maximum drive size	Not checked yet	Not checked yet
Our review
Pros	Free and open source across Windows, macOS, and Linux Highlights SMART anomalies and runs drive self-tests Supports SATA, PATA, NVMe, selected USB bridges, and RAID controllers	SMART analysis plus short, extended, and conveyance tests Surface verification, read, erase, and butterfly read tests Reports, temperature monitoring, background operation, and command-line support
Cons	Some USB-bridge and RAID-controller configurations are supported selectively Focused on SMART diagnostics rather than broader disk management Saved smartctl output is available only as a read-only virtual device	Windows platform coverage limits use on other operating systems SSD wear tracking is not part of the documented feature set Remote monitoring and configurable temperature alerts are not included
Our verdict	GSmartControl is a free, open-source graphical interface for smartctl and the smartmontools package. It is designed for users who want to inspect HDD and SSD health without working exclusively at the command line. The application displays… Read the review →	HDDScan is a freeware diagnostic utility for hard disk drives, SSDs, USB storage, FireWire devices, SCSI drives, and supported RAID volumes. It is aimed at Windows users who need technical visibility into drive health, identity,… Read the review →

Strengths and trade-offs

• GSmartControl — where it wins

  • Free and open source across Windows, macOS, and Linux
  • Highlights SMART anomalies and runs drive self-tests
  • Supports SATA, PATA, NVMe, selected USB bridges, and RAID controllers

  Where it doesn't

  • Some USB-bridge and RAID-controller configurations are supported selectively
  • Focused on SMART diagnostics rather than broader disk management
  • Saved smartctl output is available only as a read-only virtual device

• HDDScan — where it wins

  • SMART analysis plus short, extended, and conveyance tests
  • Surface verification, read, erase, and butterfly read tests
  • Reports, temperature monitoring, background operation, and command-line support

  Where it doesn't

  • Windows platform coverage limits use on other operating systems
  • SSD wear tracking is not part of the documented feature set
  • Remote monitoring and configurable temperature alerts are not included

• GSmartControl8.7/10 · Free plan

  Free, open-source SMART diagnostics for supported desktop drives.

  Visit GSmartControlFull verdict →
• HDDScan8.0/10 · Free plan

  A free Windows diagnostic utility with SMART analysis, surface tests, reports, and monitoring.

  Visit HDDScanFull verdict →