smartmontools

smartmontools is ranked #11 of 58 in hardware monitoring software on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

smartmontools plans and pricing

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Smartmontools Free GNU GPL Version 2 · smartctl and smartd utilities github.com · 1 Oct 2026

Compared on hardware monitoring software

Free plan: Yes

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smartmontools

Supported platforms: Darwin (Mac OS X), Linux, FreeBSD, NetBSD, OpenBSD, Solaris, OS/2, Cygwin, QNX, eComStation, Windows
Purpose: The package contains smartctl and smartd utilities for controlling and monitoring storage systems through SMART.
Failure warning: The utilities can provide advanced warning of disk degradation and failure.
Device support: It supports ATA/SATA, SCSI/SAS and NVMe disks, plus SCSI/SAS tape devices.
Operating systems: It should run on modern Linux, FreeBSD, NetBSD, OpenBSD, macOS, Solaris, Windows, Cygwin, OS/2, eComStation and QNX systems.
Live media: It can run from various Live CDs and DVDs.
Origin: Smartmontools was originally derived from the Linux smartsuite package.
Health checks: smartctl can print a device's SMART health status, and a failing status can mean the device has failed or predicts failure within 24 hours.
Capabilities: smartctl can show SMART capabilities, including error logging, offline surface scanning and estimated self-test duration.
Attributes: smartctl can display vendor-specific SMART attributes with raw and normalized values.
Self-tests: smartctl can start short, long and other device self-tests and read the resulting self-test log.
Daemon monitoring: smartd can monitor SMART health, error logs, self-test logs and attribute changes, schedule tests and send warning email.
License: Smartmontools uses the GNU GPL Version 2 license.
Code signing: The program uses free code signing from SignPath.io and a free code-signing certificate from the SignPath Foundation.
Price from: Free

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Where it ranks on Freedom251

Best Hardware Monitoring Software in 2026#11 of 58
Best Disk Health Monitoring Software in 2026#3 of 30
Best Disk Diagnostic Software in 2026#1 of 25
Best Hardware Diagnostic Software in 2026#1 of 25

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Sources

smartmontools.org/static/doxygen/· checked 23 Sept 2026
github.com/smartmontools/smartmontools/blob/main/R· checked 30 Sept 2026
github.com/smartmontools/smartmontools/blob/main/s· checked 30 Sept 2026
github.com/mirror/smartmontools/blob/master/smartd· checked 30 Sept 2026
github.com/smartmontools/smartmontools· checked 30 Sept 2026
smartmontools.org/static/doxygen/smartd_8cpp_source.html· checked 1 Oct 2026