Best Server Monitoring in 2026 · page 2
- 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 - 31
Naemon
Free planWebLinuxSelf-hosted6.1Free plan - 32
Servers Alive
LinuxSelf-hostedWindows6.1From €199 a year - 33
Xymon
WebLinuxmacOSSelf-hosted6.0 - 34
Monitorix
Monitorix is a free, open-source tool for monitoring system resources and services on production Linux and UNIX servers, and it can also run on embedded devices.
Free planLinuxSelf-hosted5.9Free plan - 35

Nagios Core
Free planAPILinuxSelf-hosted5.9Free plan - 36
BizTalk360
WebAPIWindows5.8 - 37
PA Server Monitor
AndroidiOSWebLinux5.4 - 38
Cockpit Machines
WebLinux4.7