DiskMaster vs GSmartControl

DDiskMaster9.4Visit GSmartControl8.7Visit

Higher score D DiskMaster #1 in Disk Diagnostic Software 9.4/10 Free plan Free plan✓ 0 of 5 features Visit DiskMaster

vs

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

• DiskMaster fits best

  Cross-platform monitoring and diagnostics

• GSmartControl fits best

  Graphical SMART diagnostics across desktops

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Side by side

Feature	DDiskMaster 9.4/10 Visit ↗	GSmartControl 8.7/10 Visit ↗
At a glance
Editor score	9.4	8.7
Ranking	#1 in Disk Diagnostic Software	#4 in Disk Diagnostic Software
Best for	Cross-platform monitoring and diagnostics	Graphical SMART diagnostics across desktops
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows, macOS, Linux	Windows, macOS, Linux
Built for	Solo, Small business	Solo, Small business
Features DiskMaster 0/5 · GSmartControl 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	SMART monitoring, self-tests, surface scans, and health scoring History charts track temperature, wear, and drive counters Alerts, reports, repair tools, and Windows/Linux/macOS support	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
Cons	SMART data reading depends on supported SATA and USB drives Focused on local monitoring rather than remote monitoring Repair tools are optional rather than part of the core workflow	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
Our verdict	DiskMaster is a free, open-source desktop application for monitoring and diagnosing drive health across Windows, Linux, and macOS. It reads native SMART data from supported SATA and USB drives, calculates an itemized health score, runs… Read the review →	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 →

Strengths and trade-offs

• DiskMaster — where it wins

  • SMART monitoring, self-tests, surface scans, and health scoring
  • History charts track temperature, wear, and drive counters
  • Alerts, reports, repair tools, and Windows/Linux/macOS support

  Where it doesn't

  • SMART data reading depends on supported SATA and USB drives
  • Focused on local monitoring rather than remote monitoring
  • Repair tools are optional rather than part of the core workflow

• 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

• DDiskMaster9.4/10 · Free plan

  A free, open-source diagnostic suite for monitoring and investigating drive health.

  Visit DiskMasterFull verdict →
• GSmartControl8.7/10 · Free plan

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

  Visit GSmartControlFull verdict →