7.2
SpotScore
Top 10 OpenNMS Alternatives 2026
Streamline Your Network Management with OpenNMS.
Main Features
- Resource Management
OpenNMS is a Network Monitoring Software platform with a user rating of 4.2★ based on 11 reviews. Teams looking for alternatives typically need better pricing flexibility, easier deployment, or a closer feature fit for their specific use case. Below you'll find 10 vetted Network Monitoring Software alternatives ranked by user rating, with filters to narrow by pricing, platform, and features — so you can find the right fit for 2026.
OpenNMS vs Top Alternatives at a Glance
Side-by-side comparison of pricing, user rating, and free trial availability to help you decide faster.
| Tool | Best For | Pricing | Rating | Free Option |
|---|---|---|---|---|
| OpenNMS Current | Network Monitoring Software | Free plan available | 4.2 ★ | ✓ Yes |
 SolarWinds RMM | Network Monitoring Software | Free trial | 4.3 ★ | ✓ Yes |
 Nagios XI | Network Monitoring Software | Free plan available | 4.4 ★ | ✓ Yes |
 Zabbix | Network Monitoring Software | Free plan available | 4.4 ★ | ✓ Yes |
 PRTG Network Monitor | Network Monitoring Software | Free trial | 4.5 ★ | ✓ Yes |
 Nagios Network Analyzer | Network Monitoring Software | Free trial | 4.2 ★ | ✓ Yes |
Showing 1-10 out of 10
List of the Top OpenNMS alternatives as of September 2026
Compare business software, products, and services to find the best solution for your business or organization. Use the filters on the left to drill down by category, pricing, features, market segment, user ratings, and more.
9.5
SpotScore
SolarWinds RMM
Maximize network performance with SolarWinds RMM.
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What is SolarWinds RMM?
SolarWinds Network Performance Monitor (NPM) is a powerful network monitoring application that continuously collects, measures, stores, displays, and alerts on network performance data. NPM provides meaningful information about LAN and WAN environment including actual bandwidth utilization ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Internet Usage Monitoring
-
IP Address Monitoring
-
Real Time Analytics
+ 4 more
Pricing
Free Trial available, Try Now
SolarWinds RMM offers custom pricing plan
9.5
SpotScore
Nagios XI
Empower Your IT Decisions with Proactive Monitoring.
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What is Nagios XI?
Nagios XI is a powerful network monitoring platform designed to help organizations worldwide make important IT infrastructure decisions with confidence. Powerful integrated add-ons allow for distributed IT management, DevOps integration, and proactive problem resolution when things go wrong. It ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Bandwidth Monitoring
-
Baseline Manager
-
Diagnostic Tools
+ 7 more
Pricing
Free Trial available, Try Now
Spotsaas Buyer Intelligence
Own the software buyers are comparing here? See who's weighing you against rivals — and who's comparing your competitors while you're not in the running.
9.6
SpotScore
Zabbix
Monitor everything, stay in control.
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What is Zabbix?
Zabbix is an enterprise-class network monitoring solution designed to monitor and track the status of various network services, servers, and other network hardware. Designed for scalability and availability, Zabbix is able to monitor complex infrastructures consisting of thousands of nodes and ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Bandwidth Monitoring
-
Diagnostic Tools
-
Internet Usage Monitoring
+ 5 more
9.8
SpotScore
PRTG Network Monitor
Monitor your network with ease.
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What is PRTG Network Monitor?
Network Monitor is a powerful and comprehensive network monitoring software for Windows and Linux systems. The PRTG Network Monitor offers continuous monitoring of all important parameters of servers, PCs, and other network equipment and notifies whenever a problem occurs or even predicts ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Bandwidth Monitoring
-
Baseline Manager
-
Diagnostic Tools
+ 7 more
Pricing
Free Trial available, Try Now
8.1
SpotScore
Nagios Network Analyzer
Maximize uptime with Nagios network monitor.
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What is Nagios Network Analyzer?
Nagios network monitor, is a network monitoring software, has become the standard for reducing downtime and improving the reliability of IT infrastructures. Used by tens of thousands of organizations, across all industries, Nagios network monitor is an open source system that monitors hardware ...
Read moreCommon Features
No common features
Unique Features
-
Bandwidth Monitoring
-
Baseline Manager
-
Internet Usage Monitoring
+ 3 more
Pricing
Free Trial available, Try Now
8.2
SpotScore
SolarWinds ipMonitor
Maximize network efficiency with real-time monitoring.
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What is SolarWinds ipMonitor?
SolarWinds ipMonitor provides network administrators with an easy-to-use, affordable way to monitor the performance of business's network. With ipMonitor, user can troubleshoot effectively by obtaining real-time information about devices, ports, CPU utilization, disk space, and more! It allows ...
Read moreCommon Features
No common features
Unique Features
-
Bandwidth Monitoring
-
Internet Usage Monitoring
-
Server Monitoring
+ 3 more
Pricing
Free Trial available
SolarWinds ipMonitor offers custom pricing plan
8.4
SpotScore
LiveNX
Efficiently monitor your network for peak performance.
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What is LiveNX?
LiveNX is a new kind of network monitoring software that provides real-time status for network and high availability servers, and alerts user to impending outages and other issues before they affect business. LiveNX uses a unique centralized display with easy-to-understand icons and charts to ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Bandwidth Monitoring
-
Baseline Manager
-
Diagnostic Tools
+ 7 more
Pricing
Free Trial available
LiveNX offers custom pricing plan
Prometheus
Effortlessly manage and integrate your data.
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What is Prometheus?
Prometheus - A software application for data management and integration. Prometheus is a Web-based, multi-user solution for data import, cleaning, transformation and load. It includes a data warehouse, business intelligence capabilities and all the connectivity required to get data from source ...
Read moreCommon Features
No common features
Unique Features
-
Monitoring
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Queries
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Virtualization
Pricing
Prometheus offers custom pricing plan
8.4
SpotScore
Icinga
Monitoring made efficient, effortless, and effective.
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What is Icinga?
Icinga is a monitoring tool that enables your team to monitor and track the health and performance of IT infrastructure resources, applications and services. Icinga combines the advantages of a traditional monitoring tool with modern technologies to increase IT service management efficiency. ...
Read moreCommon Features
No common features
Unique Features
-
Dashboard
-
Uptime Reporting
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API Monitoring
+ 6 more
Pricing
Icinga offers custom pricing plan
8.2
SpotScore
SolarWinds Network Performance Monitor
Keep your network performing at its best.
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What is SolarWinds Network Performance Monitor?
SolarWinds Network Performance Monitor (NPM) provides a powerful and budget friendly solution for network monitoring. Detect and resolve network performance issues and outages without delay. An ideal choice for both online and onsite monitoring scenarios. Get the best of both worlds for an ...
Read moreCommon Features
-
Resource Management
Unique Features
-
Server Monitoring
-
Real Time Analytics
Pricing
Free Trial available, Try Now
SolarWinds Network Performance Monitor offers custom pricing plan
Which OpenNMS Alternative Is Right for You?
- If you need a free or low-cost option: SolarWinds RMM — offers a free plan or trial suitable for small teams.
- If user satisfaction is your top priority: LiveNX — holds the highest user rating (4.8★) among OpenNMS alternatives.
- If you want a mid-range option: SolarWinds ipMonitor — sits in the middle of the list by rating and may fit teams with mixed requirements.
Frequently Asked Questions (FAQs)
Stuck on something? We're here to help with all the questions and answers in one place.
The top-rated alternatives to OpenNMS for Network Monitoring Software are LiveNX (4.8★), Prometheus (4.6★), SolarWinds ipMonitor (4.5★). Compare all 10 alternatives side-by-side above.
When evaluating alternatives to OpenNMS, prioritize: Resource Management, transparent pricing, free trial availability, and integrations with tools you already use. Use the filters above to compare by feature, budget, and team size.
For small businesses, the best Network Monitoring Software tools are Pulseway, PRTG Network Monitor, Zabbix. Look for affordable per-seat pricing, quick setup (under 1 day), no long-term contracts, and strong onboarding support to reduce time-to-value.
Migration difficulty depends on how deeply OpenNMS is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.
OpenNMS has a rating of 4.2. 9 alternatives — including SolarWinds RMM and Nagios XI — rate higher. The right choice depends on your workflow, team size, and budget.
About the reviewer
Rajat Gupta is the founder of Spotsaas. Over the past two years, he has reviewed 2,000+ tools across CRM, HR, AI, and finance — applying hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].