OpenMSP
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OpenNMS

Network Management and Monitoring

Open Source
Free Tier
Paid Plans
Paid Plans
E
Enterprise
Self-hosted
OpenMSP Score
50
31
Reddit Impact Score
Github Score
145M
1KStars
610Forks
62KCommits
OtherLicense
Jul 7, 2026Last commit

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Open source network monitoring and management platform More detailed information about this vendor will be added soon.
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Key Features

Network Discovery & Monitoring

Automatic network discovery with comprehensive monitoring of network devices, services, and applications using SNMP and other protocols

Event Management & Alerting

Sophisticated event processing engine with customizable alerting and escalation policies for proactive incident response

Performance Data Collection

Extensive performance data collection supporting 14+ protocols including SNMP, WMI, JMX, and HTTP for comprehensive metrics gathering

Flow Analysis & Reporting

Advanced flow analysis supporting NetFlow, sFlow, and IPFIX with capacity planning and traffic analysis capabilities

Distributed Architecture

Scalable distributed architecture with Minions for remote monitoring and data collection across geographically dispersed networks

Business Service Monitoring

Business service modeling and monitoring with dependency mapping and root cause analysis for service-centric operations

Pros and Cons

Pros

Open Source Freedom

AGPLv3 licensed open source solution with full source code access and no vendor lock-in

Enterprise Scalability

Proven scalability to monitor hundreds of thousands of devices using distributed architecture

Protocol Support

Extensive protocol support including SNMP, WMI, JMX, HTTP, and many others out of the box

Active Development

Continuous development by The OpenNMS Group with regular releases and community contributions

Cons

Complex Configuration

Steep learning curve with complex XML-based configuration requiring significant technical expertise

Limited Modern UI

Aging user interface that lacks modern aesthetics and user experience compared to newer solutions

Java Dependency

Heavy dependency on Java ecosystem which may conflict with existing infrastructure and require maintenance

Documentation Gaps

Some configuration scenarios lack comprehensive documentation and require community forum assistance

Feature Comparison

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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.