Agentless IT monitoring built to scale - NetCrunch offers a powerful, policy-driven platform for real-time visibility across your entire infrastructure system.




OpenNMS Horizon is described as 'OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks' and is a Network Monitor in the network & admin category. There are more than 50 alternatives to OpenNMS Horizon for a variety of platforms, including Linux, Windows, Web-based, Self-Hosted and Mac apps. The best OpenNMS Horizon alternative is Zabbix, which is both free and Open Source. Other great apps like OpenNMS Horizon are Nagios, Datadog, Spiceworks and Prometheus.
Agentless IT monitoring built to scale - NetCrunch offers a powerful, policy-driven platform for real-time visibility across your entire infrastructure system.




Open source observability platform. SigNoz helps developers find issues in their deployed applications & solve them quickly.




Graphite is a highly scalable real-time graphing system. As a user, you write an application that collects numeric time-series data that you are interested in graphing, and send it to Graphite's processing backend, carbon, which stores the data in Graphite's specialized...


Diagnose network performance problems in real-time with Intermapper, network monitoring software from HelpSystems. Powerful, reliable, and user-friendly, Intermapper helps network professionals stay ahead of outages by monitoring the performance of all your physical and virtual...




Proactively monitor your websites and online services. Receive immediate notification when a problem is detected so you can quickly resolve the root cause and prevent potential escalation.




System Center Operations Manager 2012 R2 uniquely enables customers to reduce the cost of data center management across server operating systems and hypervisors through a single, familiar and easy to use interface.
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.








Open Source (GPLv3) Network Monitoring for Windows, Linux & Android. Simple setup, auto-detects running services, runs checks concurrently, open port scanning and alerting. Written in C++ & Qt 5.


ATSD is purpose-built for analyzing and reporting on massive volumes of time-series data collected at high frequency. Features include data analytics, visualization, data forecasting, reporting, alerting. All in one product built for big data.

Sematext Monitoring is a full-stack IT infrastructure monitoring software that gives you real-time visibility across your infrastructure. Whether on-premise, in the cloud, or a mix of anything in between, Sematext can monitor your whole stack.



The automated IT performance monitoring platform that enables companies to easily and cost-effectively monitor their entire IT infrastructure stack.