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Subnetlens icon

Subnetlens

Local-first Windows LAN scanner with live discovery, topology mapping, per-device port history, and 26 built-in IT tools.

Network Map

Cost / License

  • Freemium (Pay once)
  • Proprietary

Application type

Platforms

  • Windows
Dashboard
Devices
+7
Radar
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Features

Properties

  1.  Privacy focused
  2.  Lightweight

Features

  1.  Dark Mode
  2.  Ad-free
  3.  Works Offline
  4.  No registration required
  5.  Network Scanner
  6.  Network Mapping

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Subnetlens information

  • Developed by

    GB flagHELIOSOFT LTD

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    One time purchase (perpetual license) that costs $79 + free version with limited functionality.

  • Alternatives

    9 alternatives listed

  • Badge

    Get an embeddable badge for Subnetlens

  • Supported Languages

    • English

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What is Subnetlens?

Subnetlens is a local-first Windows desktop app for LAN discovery, network mapping, and IT troubleshooting. It helps IT admins, small businesses, MSPs, and home-lab users see what is on their network without deploying a cloud service or server stack.

It scans and classifies devices, builds an interactive topology map, tracks open ports and service history per device, listens for mDNS and SSDP device activity in real time, and includes built-in tools such as ping, traceroute, DNS lookup, port scan, WHOIS, GeoIP, TLS checks, and HTTP header inspection.

The free tier includes single-subnet network scanning, topology mapping, device inventory, and core diagnostic tools. Subnetlens Pro (one-time purchase) adds Radar monitoring, Prometheus metrics, scheduled scans, risk scoring, HTML reports, IP address management, webhooks, an encrypted credential vault, SNMP topology, an embedded terminal, and multi-network profiles.

Scan data stays on the user's machine unless explicitly exported. The Windows installer is code-signed by HELIOSOFT LTD and contains no adware, bundles, or third-party offers.

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