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LibreNMS

Verified

Free open-source network monitoring with built-in network maps

Network Mapping Software
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  • Deployment On Premises, Cloud Based
  • Starting price Free
  • Free trial Not offered
  • Best for SMEs, Enterprises

What is LibreNMS?

LibreNMS is a community-developed, fully open-source network monitoring system, which makes it the zero-licence-cost option in this category. There is no paid tier and no vendor to negotiate with: the trade is that you host, configure and maintain it yourself.

Mapping is native rather than an add-on. It ships an availability map, a dependency map, a general network map, custom maps and a world map, built on top of auto-discovery that finds devices and their relationships over SNMP. Around that sits a substantial alerting system with rules, templates and a long list of delivery transports covering Discord, Slack, Alertmanager, Cisco Spark, Elasticsearch and many more. It scales through distributed polling, a dispatcher service and options such as RRDCached and Redis, and exposes a full API for automation. Storage can feed InfluxDB, Prometheus, OpenTSDB or Kafka. Being community software, support comes from documentation and the community rather than a vendor contract.

Key Features of LibreNMS

  • Discover network devices automatically over SNMP
  • Draw availability, dependency and custom network maps
  • Plot distributed sites on a world map
  • Alert on rules with reusable templates
  • Deliver alerts through dozens of transports
  • Scale monitoring with distributed polling
  • Export metrics to InfluxDB, Prometheus or Kafka
  • Automate through a documented API
  • Handle SNMP traps and proxy configurations
  • Customise the web interface and dashboards

LibreNMS Pricing

Open source

Free

Free and open source; self-hosted

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LibreNMS carries no licence fee and no paid tier. Costs are infrastructure and staff time for hosting, configuration and maintenance. Support comes from documentation and the community rather than a vendor.

LibreNMS Specifications

Deployment
  • On Premises
  • Cloud Based
Billing cycle
Yearly
Desktop
  • Web App
Languages
  • English
Built for
  • SMEs
  • Enterprises
Support
  • Email
  • Tickets
Integrations
SNMP, InfluxDB, Prometheus, OpenTSDB, Kafka, Slack, Discord, Alertmanager
Public API
Yes
Free trial
No
Free plan
Yes
Runs in browser
Yes
Customisable
Yes
Website
librenms.org

LibreNMS Screenshots

LibreNMS screenshot 1

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LibreNMS FAQs

LibreNMS is a community-developed open-source network monitoring system. It auto-discovers devices over SNMP, monitors them, alerts on problems and draws network maps.

Yes. It is fully open source with no paid tier and no licence fee. The real costs are the infrastructure it runs on and the staff time to deploy and maintain it.

Yes, natively. It provides an availability map, dependency map, general network map, custom maps and a world map, all built from auto-discovered device relationships.

Through configurable rules and templates, with alerts delivered by a wide range of transports including Discord, Slack, Alertmanager, Cisco Spark and Elasticsearch.

Documentation and community support rather than a vendor support contract, which is the main trade-off against commercial alternatives in this category.