No. 7 of 30 ·Disk Health Monitoring Software

SMART Sniffer

Windows · Mac · Linux · Self-hosted · API

Freedom report

Three barsScore 6.5

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

SMART Sniffer is ranked #7 of 30 in disk health monitoring software on Freedom251. It runs on API, Linux, macOS, Self-hosted, Windows. There is a free plan.

SMART Sniffer plans and pricing

All plans

SMART Sniffer Free MIT-licensed Home Assistant integration and Go agent github.com · 3 Oct 2026

Compared on disk health monitoring software

Free plan: Yes
SMART monitoring: Yes
SSD wear tracking: Yes
Failure warnings: Yes
Remote monitoring: Yes
Supported platforms: Linux, macOS, Windows

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The record

Purpose: SMART Sniffer monitors disk health and reports early warning signs to Home Assistant.
Drive coverage: Its Attention Needed sensor monitors ATA, SATA, NVMe, and SAS drives and reports NO, MAYBE, YES, or UNSUPPORTED.
Notifications: Persistent Home Assistant notifications fire automatically when drive health changes and can escalate, de-escalate, and auto-dismiss.
Multiple machines: A lightweight Go agent runs on each monitored machine, with each drive appearing as its own Home Assistant device.
Discovery: Agents advertise over local-network mDNS/Zeroconf so Home Assistant can discover them without manual IP entry.
Disk usage: Opt-in filesystem monitoring reports total, used, and available bytes and usage percentage for configured mountpoints.
Integrations: The integration provides a service call with SMART data and assessments that can be passed to Google AI, ChatGPT, Claude, or Ollama.
API: The agent exposes HTTP endpoints for health, drive summaries, individual drive SMART data, and configured filesystem usage.
Security: Bearer-token authentication between the agent and integration is optional, and binary downloads are checked with SHA256 checksums.
Requirements: The agent requires smartmontools 7.0 or newer for JSON output support.
USB limitation: USB enclosures that block SMART passthrough are marked UNSUPPORTED with Health: Unknown.
Installation: The Home Assistant integration can be installed through HACS or manually, and the agent has Linux, macOS, and Windows installation instructions.
Security reporting: The security policy requests vulnerability reports by email and says the maintainer aims to acknowledge them within 48 hours and provide a fix or mitigation plan within 7 days for confirmed vulnerabilities.
License and maker: The repository identifies the project as MIT-licensed and built by DAB-LABS.
Price from: Free

Where it ranks on Freedom251

Best Disk Health Monitoring Software in 2026#7 of 30

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Sources

github.com/DAB-LABS/smart-sniffer· checked 3 Oct 2026
github.com/DAB-LABS/smart-sniffer/blob/main/SECURI· checked 3 Oct 2026