Checkmk monitors cloud, hybrid, and data center infrastructure, including containers, networks, and web, mail, and database servers.
Alternatives to Centreon
ManageEngine OpManager monitors and manages network infrastructure from a unified console.
ntopng is a network traffic probe that gathers information from traffic mirrors, NetFlow exporters, SNMP devices, firewall logs, and intrusion detection systems.
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Fing Security
Fing Security checks routers for vulnerabilities, scans open ports, and detects network threats automatically and continuously.
Free planAndroidiOSWebAPI8.2From $79.99 a year - 5

Obkio
Obkio is a network performance monitoring and troubleshooting service for identifying intermittent network issues.
Free planAndroidiOSWebAPI8.2From $249 a month - 6
GlassWire
GlassWire is a network traffic monitor and personal firewall for viewing network activity and controlling app connections.
Free planAndroidWebWindows7.9From $2.99 a month - 7

Paessler PRTG Network Monitor
Paessler PRTG Network Monitor monitors systems, devices, traffic, applications, and other infrastructure metrics from an on-premises installation…
Free planAndroidiOSWebAPI7.7From $200 a month - 8
Colasoft Capsa
Colasoft Capsa is a Windows network analyzer for monitoring, analyzing, and troubleshooting wired and wireless networks.
Free planWindows7.4$295 one-time - 9

Domotz
Domotz is a cloud-based platform for discovering, monitoring, and remotely managing network-connected devices across multiple sites.
AndroidiOSWebAPI7.3From $1.50 a month - 10

NetXMS
NetXMS is an open-source solution for monitoring networks and infrastructure.
Free planAndroidWebAPILinux7.2Free plan - 11
WhatsUp Gold
WhatsUp Gold is infrastructure management software for monitoring networks and related resources across on-premises and cloud environments.
Free planWebAPISelf-hostedWindows7.2From $866 a year - 12
OpenNMS
OpenNMS is an open-source platform for monitoring faults, performance and traffic and generating alarms across local and distributed networks.
Free planWebAPILinuxSelf-hosted7.1From $6,000 a year - 13
Site24x7 Network Monitoring
Site24x7 Network Monitoring is a cloud service that tracks network health, performance, and traffic from a centralized console.
AndroidiOSWebAPI7.1From $42 a month - 14
Ganglia
Ganglia is free, self-hosted monitoring software for high-performance computing clusters and Grids.
Free planWebLinuxmacOSSelf-hosted6.9Free plan - 15

LibreNMS
LibreNMS is a free, self-hosted network monitoring system with device support.
Free planAndroidiOSWebAPI6.9Free plan - 16
EMCO Ping Monitor
EMCO Ping Monitor uses ICMP pings to track host availability and connection quality, including packet loss, latency and jitter.
Free planWebWindows6.8$199 one-time - 17

LogicMonitor
LogicMonitor Envision brings metrics, logs, events, and traces together to monitor and troubleshoot infrastructure.
WebAPILinuxWindows6.8From $16 a month - 18
FastNetMon
FastNetMon analyzes live network traffic to detect DDoS attacks in near real time and trigger mitigation according to operator-defined rules.
WebAPILinuxmacOS6.7From $115 a month - 19

Catchpoint Internet Performance Monitoring
AndroidiOSWebAPI6.6 - 20
FrameFlow
AndroidiOSWebWindows6.6 - 21

Kentik Network Monitoring System
Kentik Network Monitoring System is a SaaS service for monitoring network health and performance.
WebAPI6.6From $24,000 a year - 22

Zabbix
Zabbix is an open-source monitoring and observability solution for infrastructure, applications, networks, and services.
WebAPILinuxmacOS6.6 - 23

Observium
Observium is a self-hosted platform for monitoring and managing networks.
Free planWebAPILinuxSelf-hosted6.5Free plan - 24
Plixer Scrutinizer
Plixer Scrutinizer analyzes NetFlow data to show network traffic activity and operational patterns.
WebAPISelf-hosted6.5From $12,996 a year - 25
Cacti
Cacti is a free, self-hosted framework for network graphing and operational monitoring, built around RRDtool.
Free planWebLinuxSelf-hostedWindows6.4Free plan - 26
FreeMeter
FreeMeter is a Windows system resource meter for viewing computer activity and capacity.
Free planWindows6.4$9.99 one-time - 27

WhatsUp Gold
WhatsUp Gold monitors availability and performance across networks, systems, applications, and cloud environments.
Free planWebAPISelf-hostedWindows6.4Free plan - 28
Google Cloud Network Intelligence Center
Free planWeb6.3Free plan - 29
SmokePing
SmokePing measures network latency, latency variation, and packet loss, then stores and displays those results.
Free planWebLinuxSelf-hosted6.3Free plan - 30
DU Meter
Windows6.2$8.98 one-time


