Checkmk monitors cloud, hybrid, and data center infrastructure, including containers, networks, and web, mail, and database servers.
Alternatives to Naemon
Netdata is an observability platform for monitoring infrastructure and investigating problems in real time.
Centreon is an IT monitoring platform for complex infrastructure spanning cloud environments and edge systems.
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ManageEngine OpManager
ManageEngine OpManager monitors and manages network infrastructure from a unified console.
Free planAndroidiOSWebAPI8.3From $95 a year - 5

Nagios XI
Nagios XI is monitoring software installed on a Linux server you own.
Free planWebAPILinuxmacOS8.1$2,595 one-time - 6
Glances
Glances is a free, open-source tool for viewing real-time system statistics and running processes across platforms.
Free planOpen sourceAndroidWebAPILinux8.0Free plan - 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

openITCOCKPIT
openITCOCKPIT is an open-source monitoring platform for infrastructure and applications, including servers, virtual machines, network devices,…
Free planiOSWebAPILinux7.5From €1 a year - 9

Icinga
Icinga monitors infrastructure and applications, collecting and analyzing data to help teams identify and resolve errors.
Free planWebAPILinuxSelf-hosted7.3From $2,000 a year - 10

NetXMS
NetXMS is an open-source solution for monitoring networks and infrastructure.
Free planAndroidWebAPILinux7.2Free plan - 11

Sensu Go
Sensu Go is a commercial monitoring and observability solution for enterprises, designed for DevOps and SRE teams overseeing infrastructure from Kubernetes to bare metal.
Free planWebAPILinuxmacOS7.2From $36 a year - 12

ManageEngine Applications Manager
ManageEngine Applications Manager is a hybrid application and infrastructure monitoring product available for Android, iOS, Linux, web, and Windows.
Free planAndroidiOSWebLinux7.1From $395 a year - 13
Site24x7 Server Monitoring
Site24x7 Server Monitoring tracks performance and availability across on-premises, cloud, virtual, and hybrid servers.
AndroidiOSWebAPI7.1From $9 a month - 14
Canonical Landscape
Canonical Landscape is a systems management tool for administering Ubuntu desktops, servers, cloud instances, IoT devices, and other Ubuntu systems.
Free planWebAPILinuxSelf-hosted7.0From $6,861 a year - 15
Pandora FMS
Free planAndroidWebLinuxmacOS6.9From €0.51 a month - 16
eG Enterprise
eG Enterprise is an application and infrastructure monitoring platform that correlates user experience, application behavior, and infrastructure…
WebLinuxSelf-hostedWindows6.8From $100 a month - 17

LogicMonitor
LogicMonitor Envision brings metrics, logs, events, and traces together to monitor and troubleshoot infrastructure.
WebAPILinuxWindows6.8From $16 a month - 18
OpsDash
Free planWebAPILinuxSelf-hosted6.8From $12 a year - 19
FrameFlow
AndroidiOSWebWindows6.6 - 20

Prometheus
Prometheus is a free, open-source systems monitoring and alerting toolkit.
Free planWebLinuxmacOSSelf-hosted6.6Free plan - 21

Zabbix
Zabbix is an open-source monitoring and observability solution for infrastructure, applications, networks, and services.
WebAPILinuxmacOS6.6 - 22

eZ Server Monitor
Free planWebLinuxSelf-hosted6.5Free plan - 23
Opsview Cloud
Opsview Cloud monitors on-premises, hybrid, cloud, and containerized infrastructure through a single platform.
AndroidiOSWebAPI6.5 - 24

Beszel
Free planWebAPILinuxmacOS6.4Free plan - 25

WhatsUp Gold
WhatsUp Gold monitors availability and performance across networks, systems, applications, and cloud environments.
Free planWebAPISelf-hostedWindows6.4Free plan - 26
Performance Co-Pilot
Performance Co-Pilot (PCP) is a free, open-source toolkit and framework for system performance monitoring and analysis.
Free planAPILinuxmacOSSelf-hosted6.3Free plan - 27
Watchflare
Free planWebLinuxmacOSSelf-hosted6.3Free plan - 28
Monit
Monit is a free, open-source utility for managing and monitoring Unix systems, with automatic responses to certain errors.
Free planLinuxmacOSSelf-hosted6.2Free plan - 29

SolarWinds Server & Application Monitor
WebAPILinuxSelf-hosted6.2 - 30

Munin
Munin is free, open-source software for monitoring networked resources and examining performance problems and trends.
Free planAPILinuxSelf-hosted6.1Free plan

