OpenMSP
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LibreNMS

Network Management and Monitoring

Open Source
Self-hosted
OpenMSP Score
82
76
Reddit Impact Score
Github Score
212M
4KStars
2KForks
22KCommits
OtherLicense
Mar 21, 2026Last commit

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LibreNMS is a fully featured network monitoring system that provides a wealth of features and device support. This auto-discovering network monitoring platform supports various operating systems, network hardware, and services with powerful alerting mechanisms and API access.
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Key Features

Auto-Discovery Network Mapping

Automatically discovers network devices using CDP, FDP, LLDP, OSPF, BGP, SNMP, and ARP protocols to build complete network topology

Extensive Device Support

Monitors 800+ vendor device types including Cisco, HP, Juniper, Dell, and supports custom device definitions

Flexible Alerting System

Highly customizable alerting with notifications via email, Slack, IRC, SMS, and webhooks with conditional logic

Performance Monitoring & Graphing

Real-time performance monitoring with detailed graphs, bandwidth billing, and historical data retention

REST API & Mobile Apps

Complete API for data management and retrieval with native iPhone and Android applications for mobile monitoring

Pros and Cons

Pros

Completely Free & Open Source

No licensing costs with GPL license, providing full access to source code and unlimited scalability

Comprehensive Device Support

Supports over 800 network device types with automatic discovery and monitoring capabilities

Auto-Discovery & Easy Setup

Automatically discovers and maps network topology with minimal manual configuration required

Active Community & Regular Updates

Strong community support with frequent updates, bug fixes, and new device support additions

Horizontal Scaling

Designed to scale horizontally to accommodate growing networks with distributed polling support

Cons

Technical Complexity

Requires Linux/Unix expertise and technical knowledge to properly install, configure, and maintain

Limited Commercial Support

Relies primarily on community support with limited professional support options available

PHP/MySQL Dependencies

Requires specific versions of PHP, MySQL, and other dependencies which can complicate deployment

Interface Learning Curve

Web interface can be overwhelming for new users with extensive configuration options

Feature Comparison

Comments

Wesley EllisCloudNet Pro

Wesley Ellis • CloudNet Pro

Jun 26, 2025

Excellent for MSP Network Operations

LibreNMS provides the network visibility we need across all client environments. The bandwidth monitoring and alerting help us proactively manage network performance issues before clients notice.

Amara SinghCloudTech Solutions

Amara Singh • CloudTech Solutions

Jun 26, 2025

Comprehensive Network Visibility

LibreNMS auto-discovery features make it easy to monitor diverse client networks. The comprehensive device support means we can manage everything from switches to servers in a single platform.