LibreNMS
LibreNMS: A capable self-hosted choice for free SNMP, flow monitoring, alerts, and maps. Ranked #11 of 54 in Network Monitoring by our editors (8.2/10); pricing: Free plan; best for free SNMP and flow monitoring.
At a glance
- Editor score8.2 / 10
- PricingFree plan
- Best forFree SNMP and flow monitoring
- Free planYes
- Paid fromFree
- Facts checked23 Sep 2026
Where it wins
- Automatic discovery across SNMP, LLDP, CDP, OSPF, BGP, and ARP
- NetFlow, sFlow, IPFIX collection, and traffic billing
- Maps, distributed polling, alerts, APIs, and device backup integrations
Where it doesn't
- Requires a self-hosted deployment on Linux-based systems or Docker
- Device capacity depends on deployment resources and configuration
- Its focus is network infrastructure rather than broad IT monitoring
Our verdict on LibreNMS
LibreNMS is a GPL-licensed, self-hosted network monitoring system for organizations managing network devices and infrastructure. It is designed for teams that need free monitoring across SNMP-enabled equipment, services, traffic flows, and network relationships. Automatic discovery uses SNMP, LLDP, CDP, OSPF, BGP, and ARP, while dashboards and availability views provide places to review monitoring data. Official mobile applications extend core functionality to iOS and Android, and the platform also exposes a REST API.
Its ecosystem is a practical fit for network-centric environments with existing monitoring and operations tools. LibreNMS integrates with NfSen, collectd, SmokePing, RANCID, Oxidized, Nagios Plugins, and Graylog. Nagios plugins support network service monitoring, while Oxidized and RANCID provide device backup integrations. Alert rules can use configurable notification transports, including email, webhooks, and mobile notifications. Dynamic and custom maps, distributed polling, and traffic views add useful coverage for teams managing multiple network segments.
The standout value is breadth within network monitoring: LibreNMS combines discovery, alerting, service checks, flow collection, traffic billing, maps, dashboards, APIs, and backups in one open-source system. It is free to deploy, but the self-hosted model places installation, infrastructure, and capacity planning with the organization; device capacity depends on deployment resources and configuration rather than a documented plan limit. Choose LibreNMS when network visibility and control over deployment matter. Teams seeking a hosted service or monitoring beyond network infrastructure should consider a different product category.
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LibreNMS pricing
LibreNMS fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Synthetic checks | Not verified |
| Device limit | Not verified |
| Traffic monitoring | Yes |
| Topology maps | Yes |
| Alert channels | Not verified |
| Deployment | Self_hosted |
| Deployment | Self-hosted |
| Platforms | Web, Linux, iOS, Android |
| Compliance & security | 2FA |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: NfSen, collectd, SmokePing, RANCID, Oxidized |
| Pricing | Free plan |
| Website | librenms.org |
| Facts checked | 23 Sep 2026 |
LibreNMS integrations
LibreNMS lists 5 integrations on its own site.
- NfSen
- collectd
- SmokePing
- RANCID
- Oxidized
Alternatives to LibreNMS
- ZabbixBroad infrastructure monitoring with a free self-hosted edition and paid cloud options.9.4
- CheckmkA broad hybrid monitoring platform with a capable free edition and costly paid entry.9.3
- ManageEngine OpManagerBroad monitoring, mapping, traffic analysis, automation, and distributed coverage across four editions.9.1
See all LibreNMS alternatives →
Also Ranked In
LibreNMS is ranked in 6 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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