Monit is a free open source utility for managing and monitoring, processes, programs, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.



Munin is described as 'Networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work' and is a Network Monitor in the network & admin category. There are more than 50 alternatives to Munin for a variety of platforms, including Linux, Web-based, Windows, Self-Hosted and Mac apps. The best Munin alternative is Zabbix, which is both free and Open Source. Other great apps like Munin are Netdata, Nagios, Datadog and Beszel.
Monit is a free open source utility for managing and monitoring, processes, programs, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.



Pulseway offers a full IT stack of software and services to help you look after all your IT needs. All simple to use, integrated into one platform.




VictoriaMetrics can be used as long-term storage for Prometheus or for vmagent.
Quickly identify and resolve issues in your hybrid cloud through intuitive workflows, system integrations, and unmatched out-of-the-box functionality.



Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more.




PingPlotter is a graphical traceroute and ping tool that visualizes network performance in a way that makes identifying the source of problems quicker and easier.

Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain graphs, data sources, and Round Robin archives in a...




Checkmk is a monitoring tool of servers, applications, networks, cloud, containers, storage, databases, IoT and more. Checkmk is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features.




OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks.




Server monitoring software for physical, virtual, and cloud-based IT. They also do email monitoring, application monitoring. The system is used to provide insight into server up-time and reduce outages.




Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.


NAV (Network Administration Visualized) is a free software program to monitor networks, developed by UNINETT and used by universities and corporations around the world.


