Fing

Best Self Hosted Alternatives to Fing

A curated collection of the 3 best self hosted alternatives to Fing.

Fing provides network scanning and monitoring via mobile/desktop apps and Fing Box hardware. It discovers and identifies devices on LAN/Wi‑Fi, runs network diagnostics and performance tests, and issues alerts for connectivity and security events.

Alternatives List

#1
WatchYourLAN

WatchYourLAN

Self-hosted lightweight LAN IP/ARP scanner with web dashboard, new-host notifications, online/offline history, and metrics export to Prometheus or InfluxDB for Grafana.

WatchYourLAN screenshot

WatchYourLAN is a lightweight network IP scanner that continuously discovers devices on your local network using ARP scanning and presents results in a web interface. It helps you keep an inventory of hosts, track availability over time, and get notified when new devices appear.

Key Features

  • Web GUI to view discovered hosts and their status
  • New-host detection with notifications via Shoutrrr-supported channels
  • Online/offline history tracking with configurable retention
  • Host list/inventory for the scanned interfaces
  • Optional metrics export via Prometheus endpoint and InfluxDB 2.x integration for Grafana dashboards
  • Supports SQLite by default, with optional PostgreSQL storage
  • Configurable via web UI, config file, or environment variables

Use Cases

  • Detect unknown devices joining a home or office LAN
  • Track device availability and troubleshoot intermittent connectivity
  • Feed LAN device presence metrics into Prometheus/InfluxDB and visualize in Grafana

Limitations and Considerations

  • No built-in authentication; access should be protected with a reverse proxy/SSO layer or network controls
  • Requires ARP scanning capabilities and typically needs host networking to scan the LAN effectively

WatchYourLAN is a practical choice for lightweight LAN discovery and basic intrusion awareness, with a simple UI and integrations for notifications and observability stacks. It fits well in homelabs and small networks where continuous device monitoring is needed.

6.7kstars
228forks
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#2
NetAlertX

NetAlertX

Self-hosted network visibility and presence scanner that discovers connected devices and alerts on new, unknown, or changed hosts across your LAN/Wi‑Fi.

NetAlertX screenshot

NetAlertX is a network visibility and alerting service that scans your LAN/Wi‑Fi to discover connected devices and detect presence, reconnections, disconnects, and other changes. It helps you maintain an accurate device inventory and get notified when something unexpected appears on your network.

Key Features

  • Scheduled network scans to detect new, unknown, or returning devices
  • Change detection for device status and network attributes (for example IP changes)
  • Multiple discovery/import methods (such as ARP scanning, DHCP lease import, Pi-hole imports, UniFi controller import, and SNMP router import)
  • Extensible plugin system for custom scanners and integrations, with UI generation support
  • Web UI for device inventory, status history, and network overview
  • Notifications via multiple gateways (including NTFY, Pushover, Pushsafer, and Apprise-supported services)
  • Integrations via API endpoints and webhooks, including smart-home workflows

Use Cases

  • Detect and alert on unauthorized or unexpected devices joining a home or small-office network
  • Presence detection to trigger automations when key devices arrive or leave
  • Build and maintain a lightweight network source of truth and device inventory

Limitations and Considerations

  • Some scan methods (notably ARP-based scanning) may not discover devices across different subnets without additional network setup
  • Low-level scanning can require elevated network permissions depending on the deployment environment

NetAlertX is well-suited for homelabs and small networks where you want straightforward device discovery, change tracking, and actionable alerts. Its plugin and notification ecosystem makes it adaptable to different network setups and automation needs.

5.3kstars
307forks
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#3
Atlas

Atlas

Atlas is a containerized network infrastructure visualizer that scans subnets and Docker hosts, stores results, and presents real-time graphs and dashboards for monitoring.

Atlas screenshot

Atlas is a containerized tool for discovering, analyzing, and visualizing network infrastructure. It scans local subnets and Docker containers, stores findings, and presents them through a web UI backed by an API.

Key Features

  • Multi-interface and multi-subnet network discovery with configurable scan ranges
  • Docker host scanning via Docker socket inspection, including multi-network containers
  • Fast scans (ARP/ping) plus deeper enrichment such as open ports and OS fingerprinting
  • Interactive, real-time network graph visualization and host table views
  • Scheduled scanning with configurable intervals and runtime interval management via API/UI
  • SQLite persistence for discovered hosts, interfaces, and scan results
  • REST API with interactive documentation for accessing hosts and scheduler controls

Use Cases

  • Homelab visibility: map devices, services, and container connectivity at a glance
  • Lightweight infrastructure monitoring: detect new hosts, IP changes, and exposed ports
  • Troubleshooting networking issues: understand multi-NIC and multi-network relationships

Limitations and Considerations

  • Requires elevated network capabilities (for example raw socket access) to perform discovery scans
  • Docker inspection requires access to the Docker socket, which has security implications

Atlas combines a Go-based scanning engine, a FastAPI backend, and a React UI served behind Nginx to provide an approachable, continuously updated view of your network. It is suited to environments where quick discovery and clear visualization are more important than heavyweight enterprise NMS complexity.

876stars
36forks
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Why choose an open source alternative?

  • •Data ownership: Keep your data on your own servers
  • •No vendor lock-in: Freedom to switch or modify at any time
  • •Cost savings: Reduce or eliminate subscription fees
  • •Transparency: Audit the code and know exactly what's running