9 self-hosted PRTG alternatives

PRTG Network Monitor is Paessler's commercial network monitoring suite for Windows. These open-source apps let you replace PRTG with software you host and control yourself.

Best self-hosted PRTG alternatives

Icinga 2

Monitoring & Status

Scalable monitoring system that watches hosts and networks

Replaces SolarWinds, PRTG

★ 2.2k Hard setup GPL-2.0

Nagios Core

Monitoring & Status

Industry classic host and service monitoring engine

Replaces SolarWinds, PRTG

★ 2k Hard setup GPL-2.0

Smokeping

Monitoring & Status

Latency measurement and network performance grapher

Replaces PRTG

★ 1.9k Medium setup GPL-2.0

Cacti

Monitoring & Status

RRDtool-based network graphing and monitoring solution

Replaces PRTG, SolarWinds

★ 1.9k Medium setup GPL-2.0

OpenNMS Horizon

Monitoring & Status

Enterprise network management and monitoring platform

Replaces SolarWinds, PRTG

★ 1.2k Hard setup AGPL-3.0

Pandora FMS Community

Monitoring & Status

Flexible enterprise-grade monitoring system

Replaces SolarWinds, PRTG

★ 472 Hard setup GPL-2.0

NetXMS

Monitoring & Status

Enterprise-grade network and infrastructure monitoring

Replaces SolarWinds, PRTG

★ 391 Hard setup GPL-2.0

Naemon

Monitoring & Status

Network monitoring core based on the Nagios codebase

Replaces SolarWinds, PRTG

★ 170 Hard setup GPL-2.0

Observium

Monitoring & Status

Auto-discovering network monitoring platform

Replaces SolarWinds, PRTG

★ 1 Medium setup GPL-3.0

Compare PRTG alternatives

Switching from PRTG

Moving off PRTG means trading a managed subscription for a service you run yourself. The payoff is ownership: no per-seat pricing, no vendor lock-in, and full control of your data. Start with the option above that matches your setup-difficulty comfort level — every app links to a detailed specs page and head-to-head comparisons.