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




Sentinet3 is described as 'Enterprise class unified proactive monitoring device able to monitor Systems, Applications, and Networks' and is a Network Monitor in the network & admin category. There are more than 25 alternatives to Sentinet3 for a variety of platforms, including Linux, Windows, Web-based, Mac and Self-Hosted apps. The best Sentinet3 alternative is Zabbix, which is both free and Open Source. Other great apps like Sentinet3 are Nagios, Datadog, Spiceworks and Paessler PRTG Network Monitor.
OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks.




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.




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...




Friendly Pinger is a freeware application for network administration, monitoring and inventory.




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




Efficient and convenient tool to visualize, administer, monitor and inventory computer network of any scale.

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.




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.
Idera, formerly CopperEgg, is an all-in-one software-as-a-service designed and priced to ensure that organizations can effectively react to infrastructure performance issues. Idera provides four essential monitoring capabilities, giving you everything you need to identify and...
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.

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