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LibreNMS

librenms.org

Free plan WebLinuxiOSAndroidAPISelf-hosted
Visit librenms.org
Spec score 8.1 #10 of 39 in Network Topology Mapping Software

What it is

LibreNMS is a free, self-hosted network monitoring system with device support. It can discover networks using CDP, FDP, LLDP, OSPF, BGP, SNMP, and ARP. Customizable alerts can be sent through email, IRC, Slack, and other transports, while the API can manage installations, create graphs, and retrieve data. Distributed polling supports horizontal scaling. Documented functions include VLAN, ARP and FDB collection, traffic billing, syslog, service monitoring, and customizable dashboards. Integrations include Oxidized, RANCID, NfSen, Smokeping, Graylog, and Nagios plugins. Authentication choices include MySQL, LDAP, Active Directory, and HTTP, with two-factor authentication also documented. Installation guides cover CentOS and Ubuntu, and Docker images are available. Native iPhone and Android apps provide core functionality, and an online demo is available before installation. Community help is offered through Discord and a forum; commercial SLA-backed support and consultancy are available through partners.

Spec sheet

Purpose
LibreNMS is a network monitoring system with device support.Read 4 Oct 2026 · librenms.org
API
The API can manage installations, create graphs, and retrieve data.Read 4 Oct 2026 · librenms.org
Integrations
Documented integrations include Oxidized, RANCID, NfSen, Smokeping, Graylog, and Nagios plugins.Read 4 Oct 2026 · docs.librenms.org
Alerting
Its customizable alerting can notify through email, IRC, Slack, and other transports.Read 4 Oct 2026 · librenms.org
Authentication
Authentication options include MySQL, LDAP, Active Directory, and HTTP, and LibreNMS also documents two-factor authentication.Read 4 Oct 2026 · docs.librenms.org
Commercial support
Commercial SLA-backed support and consultancy are offered through partners.Read 4 Oct 2026 · librenms.org
Community support
The project points users to Discord and its community forum, and directs new device requests to GitHub issues.Read 4 Oct 2026 · librenms.org
Demo
An online demo is available to try before installing.Read 4 Oct 2026 · librenms.org
Discovery
It can automatically discover networks using CDP, FDP, LLDP, OSPF, BGP, SNMP, and ARP.Read 4 Oct 2026 · librenms.org
Installation
The project provides installation guides for CentOS and Ubuntu, plus Docker images.Read 4 Oct 2026 · librenms.org
Mobile
The site says native iPhone and Android apps provide core functionality.Read 4 Oct 2026 · librenms.org
Network features
Documented features include VLAN, ARP and FDB collection, traffic billing, syslog, service monitoring, and customizable dashboards.Read 4 Oct 2026 · docs.librenms.org
Scaling
Distributed polling supports horizontal scaling.Read 4 Oct 2026 · librenms.org

Plans and prices

LibreNMS Free Self-hosted network monitoring system; commercial SLA-backed support and consultancy available through partners Read 4 Oct 2026 · librenms.org

Every LibreNMS plan and price →

Strong points and limits

Strong points

  • Free, self-hosted network monitoring.
  • Discovery supports multiple protocols and methods.
  • Distributed polling supports horizontal scaling.
  • Native iPhone and Android apps provide core functions.
  • Online demo available before installation.

Limits

  • Commercial SLA-backed support is through partners.
  • Installation guides listed for CentOS and Ubuntu.
  • Mobile apps provide core functionality.

Who it suits

LibreNMS suits teams or administrators seeking self-hosted network monitoring with device discovery, alerting, and scaling options. It also offers mobile apps and partner-provided commercial support.

Verdict

LibreNMS combines discovery, alerting, integrations, and distributed polling in a free self-hosted system. Consider its installation guidance and support channels when deciding whether it fits your environment.

Where Specifiction places it

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