Self-hosted network monitoring: 15 platforms compared
Network monitoring is the one category where self-hosting is still the norm rather than the exception, so the differentiator is rarely residency. It is polling interval, licensing basis and whether the tool can see across sites without exposing them. A platform that polls every five minutes and charges per device quietly shapes how much of your estate you actually watch.
nPro publishes this comparison. Where nPro appears as one of the platforms listed, its card is marked and its scores are our own assessment. Third-party review scores are sourced from public vendor profiles. Structural facts — deployment model, licensing basis, residency — are verifiable against each vendor's documentation.
15 platforms
nPro EMS
NPRO TECH Sdn. Bhd.
Self-hosted only — publisher of this comparison
Reviews
—
Licensing
$4.50/agent/mo
Average score
8.1
- +One-second polling resolution on a ClickHouse backend, so high-frequency collection is affordable
- +Ships with XDR and SIEM on the same stack — network and security events share one timeline
- +Distributed probes report centrally without exposing remote sites to the internet
- −Device and vendor template library is far smaller than the established monitoring tools here
- −Priced per agent rather than unlimited-device, which suits mixed estates less well than pure network ones
Best for Teams who want network and security monitoring on one platform rather than two
Watch out If you only need network monitoring, the specialists in this table have deeper device coverage
Zabbix
Zabbix LLC
Open source — GPLv2, no device limit
Reviews
—
Licensing
Free; paid support available
Average score
7.8
- +Genuinely free with no device or metric ceiling at any scale
- +Proxies allow distributed collection across sites and network boundaries
- +Very flexible templating and trigger logic once you understand the model
- −Steep initial learning curve — the configuration model is powerful but unintuitive
- −Database sizing and housekeeping become a real operational job at scale
Best for Engineering-capable teams wanting unlimited scale with no licence cost
Watch out Budget engineering time, not licence budget — that is where the cost actually lands
PRTG Network Monitor
Paessler
Sensor-based licensing
Reviews
—
Licensing
Per sensor
Average score
7.6
- +Among the fastest platforms here to get from installer to useful dashboard
- +Auto-discovery and prebuilt sensors cover most common devices out of the box
- +Remote probes handle multi-site collection cleanly
- −Sensor-based licensing gets expensive quickly — each monitored metric consumes a sensor
- −Windows-only server, which is a constraint for Linux-centric infrastructure teams
Best for SMB and mid-market teams wanting quick setup without deep monitoring expertise
Watch out Count sensors carefully before buying — real estates consume far more than expected
LibreNMS
LibreNMS community
Open source — GPLv3, auto-discovery led
Reviews
—
Licensing
Free
Average score
7.5
- +Excellent auto-discovery across a very wide range of network vendors
- +Free with no device limit, and a distributed poller model for larger estates
- +Strong fit for ISP and service provider environments
- −Polling interval is conventionally five minutes — not built for sub-minute resolution
- −Alerting and reporting are functional rather than polished
Best for Network teams and service providers wanting broad device coverage at no licence cost
Watch out If you need second-level granularity, this is the wrong tool architecturally
Nagios XI
Nagios Enterprises
The long-standing incumbent
Reviews
—
Licensing
Per node (XI); Core is free
Average score
6.9
- +Enormous plugin ecosystem built up over two decades
- +Self-hosted with a long track record in conservative environments
- +Very widely understood — skills are easy to hire for
- −Configuration and interface feel dated next to anything else in this table
- −Node-based licensing on XI, and the free Core edition requires substantial assembly
Best for Existing Nagios estates and teams that value ecosystem breadth over modern UX
Watch out Evaluate the interface directly with the people who will use it daily
Checkmk
Checkmk GmbH
Open core — Raw edition free
Reviews
—
Licensing
Free (Raw) / per service (Enterprise)
Average score
7.7
- +Rule-based configuration scales far better than per-host definitions
- +Free Raw edition is genuinely capable rather than a limited trial
- +Distributed monitoring is a first-class feature, not an add-on
- −Enterprise features including advanced reporting sit behind paid editions
- −Smaller community than Zabbix or Nagios, so fewer third-party templates
Best for Teams wanting a modern open-core platform that scales without per-device cost
Watch out Confirm which features you need are in Raw before assuming the free edition suffices
Icinga
Icinga GmbH
Open source — Nagios fork, modernised
Reviews
—
Licensing
Free; paid support available
Average score
7.6
- +Free and open source with no device ceiling, and a far better interface than Nagios Core
- +Configuration as code fits infrastructure-as-code workflows well
- +Clustering and zones handle distributed and segmented networks properly
- −Initial setup is genuinely involved — expect to spend real time on it
- −Documentation assumes a level of familiarity that newcomers often lack
Best for Infrastructure teams who want configuration as code and no licence cost
Watch out This rewards investment; it punishes teams looking for something quick
Observium
Observium Limited
Auto-discovery, low maintenance
Reviews
—
Licensing
Free (Community) / annual (Professional)
Average score
7.2
- +Close to zero-configuration for SNMP devices — discovery does most of the work
- +Very light operational burden once running
- +Good long-term trending and interface statistics for network estates
- −Deliberately limited alerting compared with the alerting-first platforms here
- −Community edition updates infrequently; the subscription edition is the maintained one
Best for Network teams wanting trending and visibility with minimal ongoing effort
Watch out If alerting and response workflow matter, pair this with something else or look elsewhere
SolarWinds NPM
SolarWinds
Enterprise incumbent
Reviews
—
Licensing
Per element
Average score
7.5
- +Polished interface and mature topology mapping
- +Deep device support and a large module ecosystem across the Orion platform
- +Self-hosted, with strong enterprise reporting
- −Element-based licensing makes this among the most expensive options at scale
- −Reputational overhang from the 2020 supply chain compromise still features in security reviews
Best for Enterprises wanting a polished commercial platform with broad device coverage
Watch out Model element counts carefully, and expect security review questions about the vendor
ManageEngine OpManager
Zoho / ManageEngine
Commercial, SMB-friendly pricing
Reviews
—
Licensing
Per device
Average score
7.7
- +Considerably cheaper than the enterprise incumbents for comparable coverage
- +Quick to deploy with sensible defaults and good auto-discovery
- +Integrates with the wider ManageEngine estate including Log360
- −Device-count licensing still applies, and add-ons accumulate
- −Depth of analysis trails the specialist platforms at the top of this table
Best for SMB and mid-market teams wanting commercial support without enterprise pricing
Watch out Check which capabilities are core and which are separately licensed add-ons
Auvik
Auvik Networks
Cloud-managed, MSP-oriented
Reviews
—
Licensing
Per billable device
Average score
6.5
- +Fastest time to value of anything in this table — a collector and you are running
- +Automated topology mapping and configuration backup are genuinely strong
- +Multi-tenant model is purpose-built for managed service providers
- −SaaS only — network data leaves your environment, which rules it out under residency constraints
- −Per-billable-device pricing adds up across large or device-dense estates
Best for MSPs wanting fast multi-client onboarding with no infrastructure to run
Watch out No self-hosted option at all — a hard stop for regulated or air-gapped networks
Datadog Network Monitoring
Datadog
Observability suite module
Reviews
—
Licensing
Per host + flow volume
Average score
6.8
- +Best-in-class dashboards and correlation with application and infrastructure telemetry
- +Very large integration catalogue across cloud and on-premises sources
- +Network Performance Monitoring ties flow data to service dependencies
- −SaaS only, and among the most expensive options once host and flow volume are counted
- −Cost visibility is poor until the first full month's bill arrives
Best for Cloud-native teams already standardised on Datadog for observability
Watch out Model the bill against realistic host and flow volume before committing
Netdata
Netdata Inc.
Per-second metrics, open source agent
Reviews
—
Licensing
Free agent / paid cloud tiers
Average score
7.1
- +Per-second granularity out of the box with essentially no configuration
- +Open-source agent, and a self-hosted parent node is possible for full control
- +Install to useful dashboard in minutes on a single host
- −Host-centric rather than network-centric — SNMP and flow coverage is secondary
- −The managed cloud layer is where multi-node features concentrate, which pulls data outward
Best for Teams wanting high-resolution host metrics with minimal setup
Watch out This is not a replacement for an SNMP-led network monitoring platform
Cacti
The Cacti Group
Open source — RRDtool graphing
Reviews
—
Licensing
Free
Average score
6.7
- +Free, stable and extremely light on resources
- +Long-established SNMP graphing with a large body of community templates
- +Runs happily on modest hardware in small or isolated environments
- −Graphing-first: alerting requires plugins and is not a core strength
- −Interface and workflow are dated, and development pace is slow
Best for Small or isolated networks needing long-term interface graphing at no cost
Watch out Treat this as a graphing tool rather than a monitoring and alerting platform
WhatsUp Gold
Progress Software
Commercial, Windows-based
Reviews
—
Licensing
Points / per device
Average score
7.1
- +Straightforward setup with strong Layer 2 and Layer 3 discovery mapping
- +Self-hosted with clear point-based licensing
- +Good hybrid cloud and on-premises visibility in one view
- −Windows server requirement limits it in Linux-first environments
- −Point-based licensing and add-on modules make total cost harder to forecast
Best for Windows-centric SMB and mid-market networks wanting commercial support
Watch out Add up the modules you actually need — the base licence covers less than it appears
Capability matrix
| Capability | NP | ZB | PR | LN | NG | CM | IC | OB | SW | OM | AU | DD | ND | CA | WU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Self-hosted deployment | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | — | ~ | ✓ | ✓ |
| Fully air-gapped operation | ✓ | ✓ | ~ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ~ | — | — | ~ | ✓ | ~ |
| Open-source core | — | ✓ | — | ✓ | ~ | ~ | ✓ | ~ | — | — | — | — | ✓ | ✓ | — |
| Agentless SNMP / WMI collection | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ~ | ~ | ✓ | ✓ |
| NetFlow / sFlow analysis | ✓ | ~ | ✓ | ~ | ~ | ~ | ~ | ✓ | ✓ | ✓ | ✓ | ✓ | — | ~ | ✓ |
| Sub-minute polling | ✓ | ✓ | ✓ | — | ~ | ✓ | ✓ | — | ~ | ~ | ~ | ✓ | ✓ | — | ~ |
| Auto-discovery and topology mapping | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ~ | ✓ | ✓ | ✓ | ✓ | ~ | ~ | ~ | ✓ |
| Distributed remote probes | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ✓ | ~ | ✓ | ✓ | ✓ | ✓ | ~ | ~ | ~ |
| No per-device licence cap | ~ | ✓ | — | ✓ | — | — | ✓ | ~ | — | — | — | — | ~ | ✓ | — |
| Bundled security monitoring | ✓ | ~ | — | — | — | ~ | — | — | ~ | ~ | — | ~ | — | — | — |
| Deploys in under one day | ✓ | ~ | ✓ | ~ | — | ✓ | — | ~ | ~ | ✓ | ✓ | ✓ | ✓ | — | ✓ |
✓ supported · ~ partial or requires an add-on · — not available
Compare two platforms
Comparison data last verified 2026-09-16. Vendors change packaging frequently — tell us if anything here is out of date and we will correct it.