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Best Network Monitoring - Midmarket Software in 2026
Network monitoring software helps midmarket teams watch devices, services and network traffic from a central view. The listed products run through web, API, Linux, self-hosted, Windows and macOS environments.
- 25 apps
- Research read 28 Sept 2026
- How the order is worked out
- 1
- 2
Checkmk
Free plan Open source AndroidAPIiPhone+5Checkmk offers broad infrastructure coverage and several monitoring methods, with a free Community option for smaller environments.
- 3
Cacti
Free plan LinuxSelf-hostedWeb+1Cacti combines network data collection, availability checks, graphing, and distributed polling in a self-hosted package.
- 4
Domotz
Free plan AndroidAPIiPhone+4Domotz combines device discovery and monitoring with remote management and network diagnostics. A free discovery tier is available, while ongoing paid options are billed per device or collector.
- 5
LibreNMS
Free plan AndroidAPIiPhone+3LibreNMS provides broad network discovery, alerting, and monitoring capabilities at no listed plan cost. It is self-hosted, with community help and partner-provided commercial support available.
- 6
ManageEngine OpManager
Free plan AndroidAPIiPhone+4OpManager brings infrastructure metrics, traffic analysis, alerts, and troubleshooting into one self-hosted product.
- 7
Nagios XI
Free plan APILinuxMac+3Nagios XI offers self-hosted monitoring, a limited free edition, and perpetual paid licenses priced by node count.
- 8
Nagios Core
Free plan APILinuxSelf-hosted - 9
NetXMS
Free plan AndroidAPILinux+4NetXMS combines discovery, topology maps, protocol support, and distributed monitoring in an open-source solution.
- 10
Obkio
Free plan AndroidAPIiPhone+4Obkio combines synthetic performance checks with device monitoring, application checks, and traceroutes.
- 11
Observium
Free plan APILinuxSelf-hosted+1Observium offers a free Community edition and paid editions with additional alerting, traffic accounting, or support features.
- 12
Paessler PRTG Network Monitor
Free plan AndroidAPIiPhone+5PRTG combines on-premises infrastructure monitoring with alerts, reports, dashboards, and an API. Check sensor needs and the single-license-per-server limit when choosing a plan.
- 13
Site24x7 Network Monitoring
Free plan AndroidAPIiPhone+4Site24x7 Network Monitoring combines device discovery, live metrics, flow analysis, maps, integrations, and mobile access.
- 14
Zabbix
Free plan APILinuxMac+3Zabbix covers a broad range of monitoring sources and methods, with synthetic browser checks and a free plan. Subscription support and server or proxy allowances vary by tier.
- 15
Automic Continuous Delivery Automation
Free trial APILinuxSelf-hosted+1 - 16
Kentik Network Monitoring System
Free trial APIWebKentik NMS brings network metrics, flow data, synthetic tests, and troubleshooting tools into a SaaS service.
- 17
Progress Flowmon
Free trial APILinuxSelf-hosted+1Choose Progress Flowmon if you need network visibility and behavior-based security monitoring in one platform, with deployment options spanning virtual, cloud, and hardware appliances.
- 18
Plixer Scrutinizer
Free trial APISelf-hostedWebScrutinizer provides flow analytics, dashboards, and deployment options for network and security operations teams.
- 19
WhatsUp Gold
Free trial APISelf-hostedWeb+1WhatsUp Gold brings infrastructure monitoring, topology mapping, automation, and integrations into one product.
- 20
SolarWinds Network Performance Monitor
Free trial Self-hostedWebWindowsNPM combines device monitoring with path analysis, alerts, wireless visibility, and capacity forecasts.
- 21
- 22
LiveAction LiveNX
Paid WebWindows - 23
NEC MasterScope Network Manager
Paid WebWindows - 24
NETSCOUT nGeniusONE
Paid - 25
OpenText Network Observability
Paid Web
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free plans, trial periods and paid starting prices before choosing. If reading or changing code matters, check the open-source status and licence. Also review monitoring features, deployment and device limits.
Questions
Which network monitoring tools have a free plan?
Cacti, Checkmk, Domotz, LibreNMS, ManageEngine OpManager, Nagios Core and Nagios XI list free plans.
Which tools offer a free trial?
Trial access at no cost is listed for Automic Continuous Delivery Automation, Checkmk, Domotz, Kentik Network Monitoring System, ManageEngine OpManager and Nagios XI.
What monitoring features should I compare?
Compare SNMP monitoring, automatic discovery, flow analysis, alert channels and the monitored device limit.
Can I choose a self-hosted network monitor?
Some entries support self-hosted deployment. Verify the deployment details for the product you are considering.
Are open-source network monitoring tools available?
Some tools provide open-source code. Review a tool's licence to confirm that it permits your intended use.
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