Naemon vs Observium
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Naemon | Observium |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 73 · Good | 0 · At risk |
| Category | Monitoring & Status | Monitoring & Status |
| License | GPL-2.0 | GPL-3.0 |
| Language | C | Shell |
| Setup difficulty | Hard | Medium |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | bare-metal, source | bare-metal, source |
| GitHub stars | ★ 173 | ★ 1 |
| First released | 2014 | 2010 |
| Replaces | SolarWinds, PRTG | SolarWinds, PRTG |
What are Naemon and Observium?
Naemon
Naemon is a host and service monitoring tool based on the Nagios core, designed for improved performance and modern features. It checks the availability of resources and alerts on outages.
- Nagios-compatible checks
- Improved performance
- Livestatus query interface
- Large plugin compatibility
Observium
Observium is a network monitoring platform that auto-discovers devices via SNMP and collects performance and health data. It focuses on a clean interface and low-maintenance operation for network infrastructure.
- SNMP auto-discovery
- Network device dashboards
- Low maintenance design
- Historical performance graphs
Naemon vs Observium: key differences
Naemon is written in C, while Observium is built with Shell. Licensing differs — GPL-2.0 for Naemon versus GPL-3.0 for Observium. Naemon is the lighter option, starting around 256 MB of RAM against 1,024 MB for Observium. Observium is the more established project (first released 2010), while Naemon arrived in 2014. Naemon has the considerably larger community, at 173 GitHub stars versus 1.
Why pick each one
Choose Naemon if…
- Faster than classic Nagios
- Reuses Nagios plugins
Watch out for
- Text-file configuration
- Needs add-ons for a modern UI
Choose Observium if…
- Discovers devices automatically
- Clean interface
Watch out for
- Community edition lags the paid version
- SNMP-centric
Frequently asked questions
Is Naemon or Observium better?
Neither is universally better. Naemon has the larger community, while Observium is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Naemon and Observium free and open-source?
Yes. Naemon is licensed under GPL-2.0 and Observium under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Naemon and Observium with Docker?
Naemon: check the project docs for container support. Observium: check the project docs for container support.
Which is lighter on resources, Naemon or Observium?
Naemon has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for Observium. Real-world usage depends on library size, user count, and enabled features.