> /v1/alternatives/paessler-prtg
Open source alternatives to Paessler PRTG[005]
Paessler PRTG monitors networks, servers and devices using SNMP, ping and packet sensors, with alerting and dashboards licensed per sensor. Below are 5 self-hostable open source alternatives, ranked by GitHub popularity.
NetData
The fastest path to AI-powered full stack observability, even for lean teams.
★ STARS
78.7k
⑂ FORKS
6.4k
Grafana
The open and composable observability and data visualization platform
★ STARS
73.6k
⑂ FORKS
13.8k
OpenObserve
OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
★ STARS
18.8k
⑂ FORKS
809
Checkmk
Best-in-class infrastructure & application monitoring
★ STARS
2.3k
⑂ FORKS
535
Icinga
The core of our monitoring platform with a powerful configuration language and REST API.
★ STARS
2.2k
⑂ FORKS
605
// EDITOR'S TAKE
Checkmk is the closest fit, with SNMP and agent-based auto-discovery, thousands of ready-made plugins and an operations UI aimed at the same administrators PRTG targets. Icinga gives you far more control over check logic but demands a lot more configuration work, and NetData is excellent for per-host metrics yet is not a network device monitor at all.
// FREQUENTLY ASKED
What is the best open source Paessler PRTG alternative?
NetData is the most popular open source Paessler PRTG alternative by GitHub stars (78,745 stars). The other 4 options are ranked above.
Are these Paessler PRTG alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.