LibreNMS vs Zabbix
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
LibreNMS
Auto-discovering network monitoring system
VS
Zabbix
Enterprise-grade open-source monitoring solution
| Feature | LibreNMS | Zabbix |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 89 · Excellent | 89 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | GPL-3.0 | AGPL-3.0 |
| Language | PHP | Go Template |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, bare-metal |
| GitHub stars | ★ 4,903 | ★ 6,411 |
| First released | 2013 | 2001 |
| Replaces | Nagios | Datadog, Nagios |
What are LibreNMS and Zabbix?
LibreNMS
LibreNMS is a fully featured network monitoring system with auto-discovery, alerting, and broad device support over SNMP. It targets network administrators monitoring many devices. It is deployed via Docker or a LAMP stack.
- Automatic network discovery
- Broad vendor and SNMP support
- Alerting and billing
- Distributed polling
Zabbix
Zabbix is an enterprise-class monitoring solution for networks, servers, cloud, and applications with deep alerting. It targets organizations needing comprehensive infrastructure monitoring. It is deployed via Docker or native packages.
- Agent and agentless monitoring
- Powerful triggers and alerting
- Network discovery and maps
- Highly scalable
LibreNMS vs Zabbix: key differences
LibreNMS is written in PHP, while Zabbix is built with Go Template. Licensing differs — GPL-3.0 for LibreNMS versus AGPL-3.0 for Zabbix. Zabbix is the more established project (first released 2001), while LibreNMS arrived in 2013.
Why pick each one
Choose LibreNMS if…
- Great for network devices
- Strong auto-discovery
- Active community
Watch out for
- Network-focused
- Setup takes effort
Choose Zabbix if…
- Comprehensive and mature
- Scales to large estates
- Fully free
Watch out for
- Steep learning curve
- Dated interface
Frequently asked questions
Is LibreNMS or Zabbix better?
Neither is universally better. Zabbix has the larger community, while LibreNMS is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are LibreNMS and Zabbix free and open-source?
Yes. LibreNMS is licensed under GPL-3.0 and Zabbix under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run LibreNMS and Zabbix with Docker?
LibreNMS: yes. Zabbix: yes.