Cost / License
- Paid
- Proprietary
Application type
Platforms
- Linux
- Docker




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.




LoggiFly is a lightweight tool that monitors Docker container logs for predefined keywords or regex patterns and sends notifications.




Amon is an all-in-one server monitoring tool. Amon monitors you cloud, system, process and applications metrics with zero configuration.


IPNetwork Monitor is self-hosted network monitoring software for tracking uptime and performance on Windows, Linux, and other OS.




EU-hosted AI observability platform. Monitor LLM costs, latency, and compliance in one platform. GDPR and AI Act compliant.

PostgreSQL performance monitoring with 75+ automated health checks, cluster-aware index advisor, and extension monitoring for TimescaleDB, pgvector, and PostGIS.



Host agent from AL’S-OPS for Linux, Windows, Docker, and Kubernetes. Process, network, file, and auth signals. Actions you configure.




Self-hosted network monitoring for MSPs, IT teams and homelabs. SNMP, services, websites, alerts, diagnostics. Free for 100 devices.




Bloonix is a software for monitoring IT infrastructures. With Bloonix everything can be monitored what is to be reached about a network connection and for which there is a Plugin. Hardware components can be also monitored on which Bloonix cannot be installed, as for example...

Vexor Monitoring — a modern all-in-one infrastructure monitoring platform. Screenshots, install guide, EULA and a free +1 year evaluation license.
