Network monitoring tools in 2026
Devices, links, latency and traffic: SNMP polling, flow analysis and path monitoring. This list has 29 network monitoring tools. Of these, 13 are open source, 18 have a free plan and 23 can be self-hosted. Checked by hand on 30 September 2026.
- 1
Akvorado
Flow collector and visualizer that receives NetFlow, IPFIX and sFlow, enriches flows with interface and routing data, stores them in ClickHouse and shows them in a web UI.
- 2
Auvik
Cloud-managed network monitoring that discovers and maps switches, routers and firewalls, tracks traffic and alerts on device problems.
- 3
Cacti
Network graphing tool built on RRDtool: polls devices over SNMP or scripts and draws long-term graphs of traffic and system metrics.
- 4
Checkmk
Infrastructure monitoring for servers, networks, cloud and containers with automatic service discovery; the base edition is open source and paid editions add more.
- 5
Domotz
Remote network monitoring for MSPs and IT teams: a collector on each site discovers devices and alerts on outages and SNMP metrics.
- 6
ElastiFlow
Flow and SNMP collector that ships network flow records to Elasticsearch, OpenSearch and other stores, with ready-made dashboards and security detections.
- 7
Hubble
Network observability layer for Cilium that shows service dependencies, network flows and DNS and HTTP traffic between Kubernetes workloads, using eBPF.
- 8
Kentik
Network observability SaaS that analyzes flow, BGP and device data to show traffic, performance problems and DDoS attacks.
- 9
LibreNMS
Network monitoring system with automatic SNMP discovery, graphs and alerting, supporting a long list of network hardware vendors.
- 10
ManageEngine OpManager
On-premises network and server monitoring for routers, switches, firewalls, Windows and Linux hosts and virtual machines.
- 11
NetAlertX
Self-hosted scanner that discovers devices on your network and alerts when new, unknown or offline devices appear.
- 12
NetCrunch
AdRem Software's agentless network monitoring system for devices, servers and services over SNMP, WMI and other protocols, with maps, dashboards and alerting.
- 13
Netdisco
Open source network management tool that discovers switches and routers over SNMP and lets you locate devices by MAC or IP, browse ports and track inventory.
- 14
NetXMS
Network and infrastructure management system with SNMP discovery, network maps, server agents and event correlation; an Enterprise edition adds support and features.
- 15
ntopng
Web-based network traffic monitor that analyses packets or flows to show top talkers, applications, hosts and alerts. Open source Community edition with paid Pro and Enterprise versions.
- 16
Obkio
Network performance monitoring that places agents at sites, in clouds and on user devices and runs synthetic traffic between them to measure latency, loss and jitter.
- 17
Observium
Network monitoring platform with SNMP auto-discovery of devices; a free Community Edition and a paid Professional edition with faster updates.
- 18
OpenNMS
Network management platform for fault and performance monitoring at scale; Horizon is the open source edition and Meridian the supported one.
- 19
PingPlotter
Network troubleshooting tool that runs continuous traceroutes to chart latency and packet loss hop by hop. Desktop editions include a free version; the Cloud edition monitors remote users.
- 20
Plixer Scrutinizer
NetFlow and IPFIX analysis platform for network traffic visibility, capacity planning and security investigations.
- 21
pmacct
Set of passive network monitoring daemons that collect NetFlow, IPFIX, sFlow, BGP and BMP data and export traffic accounting to databases or message brokers.
- 22
Progress Flowmon
Flow-based network monitoring and network detection and response from Progress, covering traffic analysis, application performance and threat detection.
- 23
PRTG Network Monitor
Windows-based network and server monitoring from Paessler built around sensors for SNMP, WMI, flows, ping and HTTP, with maps and dashboards.
- 24
SmokePing
Latency monitor that probes hosts continuously and graphs latency and packet loss distribution over time.
- 25
SolarWinds
Suite of network, server, database and application monitoring products, sold as self-hosted software and as the SaaS SolarWinds Observability.
- 26
Statseeker
Network performance monitoring that polls interfaces and devices over SNMP at short intervals and keeps full-resolution history for capacity planning and forensics.
- 27
ThousandEyes
Cisco's network and internet visibility service: synthetic tests from cloud and enterprise agents trace the network path to your apps and SaaS providers.
- 28
WhatsUp Gold
Progress network monitoring for devices, servers and applications, with layer 2/3 discovery and interactive network maps.
- 29
Zabbix
Open source monitoring for networks, servers, VMs, applications and cloud, using agents, SNMP and templates with trigger-based alerting; Zabbix Cloud is the hosted option.
Side by side
| Tool | Pricing | Free plan | Open source | Self-hosted | SNMP polling | Flow analysis | Device discovery | Topology maps | Latency and path | Bandwidth graphs | Syslog and traps | Configuration backup | Alerting | Wireless |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Akvorado | Free | Yes | Yes | Yes | Yes | Yes | - | - | - | Yes | - | - | - | - |
| Auvik | Paid | No | No | No | Yes | Yes | Yes | Yes | - | Yes | - | Yes | Yes | - |
| Cacti | Free | Yes | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes | Yes | - |
| Checkmk | Free plan | Yes | Yes | Yes | Yes | - | Yes | Yes | - | Yes | Yes | - | Yes | Yes |
| Domotz | Paid | No | No | No | Yes | - | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes |
| ElastiFlow | Free plan | Basic: 4,000 records/s, 25 SNMP devices | No | Yes | Yes | Yes | - | - | - | Yes | - | - | Yes | - |
| Hubble | Free | Yes | Yes | Yes | No | - | Yes | Yes | Yes | - | No | No | - | No |
| Kentik | Paid | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | - |
| LibreNMS | Free | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ManageEngine OpManager | Free plan | Free edition: 3 devices | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| NetAlertX | Free | Yes | Yes | Yes | Yes | - | Yes | - | - | - | - | - | Yes | - |
| NetCrunch | Paid | No | No | Yes | Yes | Yes | Yes | Yes | - | Yes | - | - | Yes | - |
| Netdisco | Free | Yes | Yes | Yes | Yes | - | Yes | Yes | - | - | - | - | - | - |
| NetXMS | Free plan | Yes | Yes | Yes | Yes | - | Yes | Yes | - | - | Yes | Yes | Yes | - |
| ntopng | Free plan | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes | - | Yes | - |
| Obkio | Paid | No | No | No | Yes | - | - | - | Yes | Yes | - | - | Yes | Yes |
| Observium | Free plan | Yes | No | Yes | Yes | - | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| OpenNMS | Free plan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | - |
| PingPlotter | Free plan | Yes | No | No | - | - | - | - | Yes | - | - | - | Yes | - |
| Plixer Scrutinizer | Paid | No | No | Yes | - | Yes | - | - | Yes | Yes | - | - | Yes | - |
| pmacct | Free | Yes | Yes | Yes | - | Yes | - | No | - | No | - | - | - | - |
| Progress Flowmon | Paid | No | No | Yes | - | Yes | - | - | - | Yes | - | - | Yes | - |
| PRTG Network Monitor | Free plan | Freeware edition: 100 sensors | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | Yes |
| SmokePing | Free | Yes | Yes | Yes | - | No | - | - | Yes | - | No | No | Yes | No |
| SolarWinds | Paid | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Statseeker | Paid | No | No | Yes | - | Yes | Yes | - | Yes | Yes | - | - | Yes | Yes |
| ThousandEyes | Paid | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | - | - | Yes | Yes |
| WhatsUp Gold | Paid | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Zabbix | Free plan | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes | Yes | Yes | - | Yes | - |
Yes: confirmed in the tool's documentation. No: documented as not offered. -: not confirmed. Plans and prices change; check each tool's own site before you decide.
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