One of the most popular alternatives to Nagios is Zabbix, which is free and open source. Other popular alternatives are Beszel, Netdata, Datadog and Better Stack. There's no shortage of Network Monitors like Nagios, with more than 100 alternatives for Linux, Windows, the web, self-hosting and Mac.
LANState is a simple NMS with the network topology mapping and device monitoring functions. Add hosts to a graphical network map and monitor their state in the real time. Receive failure notifications when hosts and services go down.
Russia
Total Network Inventory is a PC audit and network inventory software for office and large-scale enterprise networks. Total Network Inventory interrogates all computers and notebooks on a network and reports back with complete information about the OS, service packs, hotfixes...
Belarus
CoScale provides full-stack performance monitoring, optimized for webscale and containerized production environments. The CoScale platform continuously monitors your servers, containers, and applications, as well as the impact on user experience and key business metrics.
Belgium
EU
Xymon is a tool for monitoring servers, applications and networks. It collects information about the health of your computers, the applications running on them, and the network connectivity between them.
OptiTune is an IT Management System that lets you manage thousands of computers, provide remote desktop support, deploy applications, manage updates, handle endpoint protection, and more. All from one cloud based console. Your first year is free.
United States
The alerta monitoring system is a tool used to consolidate and de-duplicate alerts from multiple sources for quick ‘at-a-glance’ visualisation. With just one system you can monitor alerts from many other monitoring tools on a single screen.
Switzerland
All-in-one server monitoring, service monitoring, database monitoring, uptime monitoring, app metric monitoring and alerting. Fast setup. Easy to use.
United States
Infrastructure monitoring that works from minute one. One open-source agent auto-discovers 100+ services with instant dashboards and smart alerts — zero configuration. Simple per-host pricing, no surprise bills. EU data residency, PromQL and OpenTelemetry compatible. Free plan available.
FranceEU
Application Monitoring that finds what you can't see in charts. Identify slow database queries, N+1s, sources of memory bloat, performance abnormalities, and more.
Join SentinelAgent and the evolution of Windows monitoring.
SentinelAgent is a secure cloud-based Microsoft Windows® monitoring system that uses the latest in Microsoft Azure® technology with a lightweight agent-based SaaS design and sleek web interface to capture, org.
Canada
