Best Network Mapping Software

Domotz takes the opposite approach to tiered vendors: there are no plans to compare because every feature ships on every device. Its stated position is no tiers, no feature gating and no setup fees, so the same monitoring, alerting and remote access available on one device is available on five hundred.

That leaves two ways to buy. The Collector Plan is $35 per collector per month, which Domotz recommends and which gives full platform access on every device behind that collector. The Managed Device option is $1.50 per managed device per month for organisations that would rather pay only for devices they actively manage. Annual and volume discounts are available on both. Included throughout are automatic device discovery, network topology mapping, real-time monitoring and alerts, remote power management, unlimited networks and locations, API access, PSA and ticketing integrations and a mobile app. It is aimed squarely at MSPs and IT service providers, with more than 3,600 using it, and carries SOC 2 Type II. The trial runs 14 days with no credit card.

PRTG is network monitoring first, with mapping delivered through its map and dashboard builder rather than as a standalone topology tool. Its licensing model is the thing to understand: you buy sensors, not devices or users. A sensor is one monitored aspect of one device, so a single switch might consume several.

Paessler publishes the ladder openly. PRTG 500 is $200 per month paid annually and is described as enough for multiple aspects of 50 devices; PRTG 1000 is $358 for around 100 devices; PRTG 2500 is $742 for around 250; PRTG 5000 is $1,300 for around 500; and PRTG 10000 is $1,642 for around 1,000 devices. Above that, PRTG Enterprise Monitor is quoted. The wider family includes PRTG Hosted Monitor for a SaaS deployment and PRTG UVexplorer, which is where deeper network discovery and topology mapping sits. A free trial is available.

Lansweeper approaches network mapping through asset intelligence: rather than drawing topology diagrams, it discovers everything connected to the network and builds an inventory of what is actually there. It describes itself as cyber asset intelligence and reports more than 30,000 environments in use, with agentless discovery reaching devices that agent-based tools miss.

Its pricing structure is unusually generous at the bottom. The trial gives 14 days of full access, then continues free for up to 100 assets with unlimited user seats and community support, which is a genuine free tier rather than a time-limited demo. Starter is from EUR 219 per month billed annually and Pro from EUR 399, both including 2,000 assets, with Enterprise and Custom quoted for global scale and governance needs. Prices display in local currency, so figures vary by region. Assets are the unit that matters: the definition of an asset and how the count scales are the first questions to settle in a quote.

Nmap, short for Network Mapper, is the tool most of this category is measured against and the one least like the rest of it. It is a free and open-source utility for network discovery and security auditing, run from the command line rather than a dashboard, and it produces scan results rather than maintained topology diagrams. Buyers wanting continuously updated documentation should look at the commercial tools here; those wanting to know precisely what is on a network right now start with Nmap.

It is a suite rather than a single binary. Zenmap provides a graphical front end, Ncat handles data transfer, redirection and debugging, Ndiff compares scan results between runs to reveal what changed, and Nping generates packets and analyses responses. On Windows it depends on the Npcap packet capture library. The Nmap Scripting Engine extends scanning far beyond port discovery into service and vulnerability checks. The current release is Nmap 7.99, and the project has been developed continuously since 1997. It may be modified and redistributed under the terms of its licence.

LibreNMS is a community-developed, fully open-source network monitoring system, which makes it the zero-licence-cost option in this category. There is no paid tier and no vendor to negotiate with: the trade is that you host, configure and maintain it yourself.

Mapping is native rather than an add-on. It ships an availability map, a dependency map, a general network map, custom maps and a world map, built on top of auto-discovery that finds devices and their relationships over SNMP. Around that sits a substantial alerting system with rules, templates and a long list of delivery transports covering Discord, Slack, Alertmanager, Cisco Spark, Elasticsearch and many more. It scales through distributed polling, a dispatcher service and options such as RRDCached and Redis, and exposes a full API for automation. Storage can feed InfluxDB, Prometheus, OpenTSDB or Kafka. Being community software, support comes from documentation and the community rather than a vendor contract.

Faddom maps application dependencies rather than network topology, which is a different question to the one most tools in this category answer. Instead of showing how switches interconnect, it shows which servers, services and applications rely on each other, and it does so agentlessly so nothing has to be installed on the machines being mapped.

Speed of first result is its main claim: dependencies mapped in under 60 minutes, with a fully self-serve setup and a 14 day free trial that needs no credit card. Coverage spans on-premises physical servers, virtual machines and cloud instances, and it doubles as a lightweight CMDB for teams that need current dependency data without a full configuration management programme. The most important qualifier is one Faddom states plainly on its own pricing page: it is designed for enterprises with 100 or more servers. Pricing is not published as a list. A configurator asks for server count and type, then produces a recommended plan.

NetBrain treats mapping as the input to automation rather than the deliverable. It generates hybrid-cloud maps, A-B path diagrams and inventory reports instantly, then uses that model to assess the network continuously and act on what it finds. The company frames the direction as agentic NetOps, with AI agents that diagnose network issues rather than only alerting on them.

What separates it from a diagramming tool is what happens after the map exists: one-click auto-remediation, security intent discovery and orchestration, continuous 24/7 assessment to catch problems before they become outages, and AI-assisted observability for transient issues that are gone by the time an engineer looks. Change management is covered by what NetBrain calls a triple defence for safe network change. Integrations span Cisco, Datadog, Infoblox and Jira in both Cloud and Data Center editions. Pricing is not published and deployments are scoped with the sales team.

Device42 maps infrastructure rather than network topology alone, and the distinction matters when comparing it with a diagramming tool. Its agentless discovery spans legacy mainframes through to cloud, building a picture of what exists and, more importantly, what depends on what. Application dependency mapping is native rather than an add-on.

The platform combines data centre infrastructure management, CMDB, IT asset management and reporting in one place, which is why it tends to be evaluated for migration and consolidation projects rather than day-to-day monitoring. Cloud migration capability includes AWS migration support and affinity-based automatic move groups, which use discovered dependencies to work out what has to move together. The company was acquired by Freshworks to strengthen its IT asset management capability and now trades as Device42, a Freshworks company. It reports customers across more than 60 countries. A 14 day free trial is offered and pricing is not published.

SolarWinds Network Topology Mapper is one of the few tools in this category built for network mapping specifically rather than mapping as a by-product of monitoring. It performs multi-level discovery to produce an integrated OSI Layer 2 and Layer 3 map with detailed device information, so the diagram shows both physical switch connections and logical routing rather than one or the other.

Discovery runs by scanning IP address ranges or from a defined seed device using industry-standard protocols, and maps refresh without re-scanning the network each time. The output matters as much as the discovery: maps export to Microsoft Visio, PDF and PNG, and exports can be scheduled so documentation stays current. That feeds directly into the compliance use case, since standards such as PCI require up-to-date network diagrams and maintaining those by hand is what most teams are trying to escape. It also doubles as network inventory management. SolarWinds offers a free trial and download; no price is published on the product page.

Datadog is a cloud based observability and security platform that unifies infrastructure monitoring, application performance monitoring (APM), log management, real user monitoring, and security monitoring in a single product. It correlates metrics, traces, and logs so engineering teams can pivot between them to investigate issues down to the code level, and it offers more than 1,000 integrations with cloud providers and other tools.

Datadog's pricing is modular and usage based, with each product billed separately, such as per host for infrastructure and APM, or per GB and per million events for log management. A limited free tier covers up to 5 hosts with 1-day retention. Datadog also offers AI powered features including anomaly detection and autonomous investigation agents.