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LibreNMS

Network Management and Monitoring

Open Source
Self-hosted
OpenMSP Score
81
74
Reddit Impact Score
Github Score
224M
4KStars
2KForks
23KCommits
OtherLicense
Jul 6, 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.

Frequently Asked Questions

Getting Started

OpenMSP is The MSP Knowledge Hub & Community Platform designed specifically for Managed Service Providers seeking to optimize their technology stack, reduce vendor costs, and discover open-source alternatives. We combine a comprehensive vendor directory, open-source solution catalog, and integrated community discussions to help MSPs make informed decisions.
Yes, completely free. Browse vendors and tools, read comparisons, and join community discussions - no cost, no registration required. OpenMSP is community-supported and focused on empowering MSPs to reduce costs and improve operational efficiency through open-source technology.
We help MSPs identify cost-effective alternatives to expensive commercial solutions, provide transparent vendor information, and connect you with proven open-source alternatives. Our platform enables MSPs to make informed decisions about their technology investments.
No account required for browsing vendors, reading comparisons, or accessing community content. Creating a free account with SSO (Microsoft, Google, or Slack) allows you to participate in discussions and save your favorite tools.

Platform Information

OpenMSP is currently community-supported. We focus on providing value to the MSP community first. Any future monetization will keep the core platform free for MSPs while maintaining our independence and commitment to unbiased information.
We focus exclusively on MSP needs with transparent vendor information and open-source alternatives. No vendor partnerships or sponsored listings - just honest, community-driven information to help MSPs make better technology decisions. Our biggest value is our community where MSPs help each other with questions, setup guidance, and sharing real-world experiences.
Our community of MSP professionals helps verify and update information. We also maintain direct research on tools and vendors to ensure accuracy. Community members can report outdated information, and we work to keep everything current.
OpenMSP was founded by Michael Assraf, who has extensive experience in the MSP industry and product leadership. As the former CEO & Founder of Vicarius, Michael grew a startup from $0 to $9M ARR with 500+ customers and deep experience working with MSPs, partners, and fundraising. OpenMSP represents his commitment to empowering the MSP community through better technology decisions and cost optimization.

Open-Source Tools & Alternatives

We assess tools based on active development, community size, documentation quality, production deployments by MSPs, and available support options. Tools must meet strict criteria for reliability and enterprise readiness.
Many open-source projects offer multiple support options including community forums, commercial support from vendors, professional services, and our community discussions where experienced MSPs share implementation guidance.