Scanopy is for IT teams and MSPs who want a dedicated network diagram automation tool which works alongside their existing monitoring platform. LibreNMS is for teams with Linux skills that want free, self-hosted monitoring with basic topology visualization. The table below puts the two side by side on discovery, the four topology views, pricing, and licensing, including LibreNMS's trade-offs.
Scanopy vs LibreNMS: head to head
| Scanopy | LibreNMS | |
|---|---|---|
| DiscoveryProtocols used to find devices and map connections | SNMP LLDP CDP ARP TCP/UDP | SNMP CDP LLDP [10] |
| Service detectionWhether the tool fingerprints services per host (databases, web servers, containers) beyond simple port detection | Yes 240+ types | No |
| Network ViewsWhich topology views the tool produces from discovery. L2 Physical switch ports and links L3 Subnets, VLANs, routing Workload VM/container host nesting Application Service-dependency / app grouping Yes supported Tag ? unverified Greyed not supported | L2 map built from xDP (CDP/LLDP) and ARP; no L3 subnet map. [30] | |
| Live updatesWhether the map updates automatically after the initial scan | Yes | No |
| Open sourceOSI means an OSI-approved open-source license; Source available means restricted; No means proprietary | OSI AGPL-3.0 | OSI GPL-3.0 |
| PricingStarting price or pricing model | Starts at $11.99 monthly, unlimited hosts | Free |
| Also includesCapabilities beyond network diagramming | Docker Visualization | Monitoring |
When to choose which
Choose Scanopy when: You want a dedicated, living network-documentation tool: automatic L2, L3, workload, and application views, per-host service detection, flat pricing regardless of host count, and a free self-hostable Community edition. It sits alongside your monitoring stack rather than replacing it.
Choose LibreNMS when: Teams with Linux server management skills that want free monitoring with some topology visualization. If you're already running LibreNMS for monitoring, the weathermap plugin adds basic mapping without another tool.
This is a focused, two-tool comparison. For all 13 tools side by side, see the full comparison of automated network diagram tools.
Sources
Try Scanopy
Scanopy deploys a lightweight daemon that discovers your network and builds a live topology map. No per-device fees, unlimited hosts. It pairs with whatever monitoring tool you already use.
Started as a homelabber, now deep in SNMP MIBs, Layer 3 topology, and service fingerprinting - building the network documentation tool I wished existed.