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ManageEngine OpManager vs Nagios Core comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
2.3
ManageEngine OpManager provides quick ROI through efficient alerts and dashboards, reducing costs and improving issue resolution and uptime.
Sentiment score
8.8
Nagios Core reduces downtime and costs with quick alerts, providing full ROI and eliminating expensive monitoring tools.
However, from a sales perspective, it's very challenging for the initial sale, and even renewals are tough when it comes to the price point.
Technical Solution Specialist at Crypto-gen
 

Customer Service

Sentiment score
3.7
ManageEngine OpManager's support is praised for responsiveness but needs improvement in 24/7 availability and complex issue resolution.
Sentiment score
5.1
Nagios Core relies on community support, praised for stability and resources, but lacks official help compared to Nagios XI.
I would give nine points out of ten for ManageEngine OpManager's technical support.
Senior Engineer - Network & Security at Altria Consulting
The rating for support would be six out of ten for ManageEngine OpManager.
Technical Solution Specialist at Crypto-gen
More support is needed, especially on weekends.
Deputy Director at Access Healthcare Services Pvt Ltd
 

Scalability Issues

Sentiment score
4.1
ManageEngine OpManager is highly scalable, handles growth well, supports multiple industries, but needs better automation and AI features.
Sentiment score
6.7
Nagios Core shows scalability for large networks but may need customizations and integrations for distributed environments.
Scalability is needed more in automation and AI functionalities.
Deputy Director at Access Healthcare Services Pvt Ltd
The solution is scalable.
Senior System Administrator at Interactive Group
 

Stability Issues

Sentiment score
5.3
ManageEngine OpManager is generally stable, with occasional connectivity and lag issues, receiving ratings between seven and ten.
Sentiment score
8.2
Nagios Core is highly stable and reliable with minimal footprint, supporting extensive monitoring without network burden.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
Senior System Administrator at Interactive Group
 

Room For Improvement

ManageEngine OpManager struggles with stability, complexity, poor support, performance issues, and lacks user-friendly customization and documentation.
Nagios Core needs a more intuitive interface, better scalability, and features like enhanced reporting and integration with modern tools.
If identifying the interface was easier, it would take less time to configure.
Junior System Engineer at Corporate Projukti Limited
There is a call for ManageEngine OpManager to scale better in automation and AI functionality.
Deputy Director at Access Healthcare Services Pvt Ltd
Improving the after-sales support and learning materials for local engineers and partners to enhance their capacities and expertise.
Technical Solution Specialist at Crypto-gen
 

Setup Cost

ManageEngine OpManager offers competitive pricing, flexible licensing, and discounts, though costs rise with more devices and additional features.
Nagios Core is a free, cost-effective open-source tool, but requires Linux expertise and incurs hosting and maintenance costs.
The cost is quite high-end for ManageEngine OpManager, especially in our very price-sensitive market here in Sri Lanka.
Technical Solution Specialist at Crypto-gen
Pricing for ManageEngine OpManager is good and negotiable with the distributor;
Senior Engineer - Network & Security at Altria Consulting
 

Valuable Features

ManageEngine OpManager offers robust monitoring, automation, and reporting with user-friendly dashboards, enhancing IT efficiency and managing up to 10,000 devices.
Nagios Core provides flexible, low-resource monitoring with customization, automation, efficient alerts, and integration support for reliable IT performance visibility.
The automated reporting back, which includes identifying the top list and trends, as well as session monitoring from the end user to server through routers and firewalls, provides exact issue notifications for network problems.
Deputy Director at Access Healthcare Services Pvt Ltd
The biggest benefit of ManageEngine OpManager for our customers is centrally managing the users and assets of an organization, along with link management, bandwidth management, and similar functionalities.
Technical Solution Specialist at Crypto-gen
The dashboard is unique and user-friendly.
Junior System Engineer at Corporate Projukti Limited
It has a very handy dashboard, providing live alerts and visibility for everything.
Senior System Administrator at Interactive Group
 

Categories and Ranking

ManageEngine OpManager
Ranking in Network Monitoring Software
11th
Average Rating
8.0
Reviews Sentiment
5.3
Number of Reviews
55
Ranking in other categories
No ranking in other categories
Nagios Core
Ranking in Network Monitoring Software
10th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
IT Infrastructure Monitoring (11th)
 

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of ManageEngine OpManager is 1.5%, down from 1.7% compared to the previous year. The mindshare of Nagios Core is 1.9%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core1.9%
ManageEngine OpManager1.5%
Other96.6%
Network Monitoring Software
 

Featured Reviews

Charles A - PeerSpot reviewer
Deputy Director at Access Healthcare Services Pvt Ltd
Reporting features improve operational efficiency while weekend support needs enhancement
Support is moderate and needs improvement, especially during weekends when technicians perform upgrades. During weekends, they need to provide more support to ensure a smooth transition. There is a call for ManageEngine OpManager to scale better in automation and AI functionality. Although the product stability is good, support enhancement is necessary to enable better planning for upgrades and maintenance activities.
HY
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
12%
Manufacturing Company
7%
Government
6%
Computer Software Company
11%
Manufacturing Company
10%
Comms Service Provider
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise15
Large Enterprise27
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise22
 

Questions from the Community

What is your experience regarding pricing and costs for ManageEngine OpManager?
The cost is quite high-end for ManageEngine OpManager, especially in our very price-sensitive market here in Sri Lanka.
What needs improvement with ManageEngine OpManager?
The main drawback is there is less documentation available, both public documentation and partner-available documentation. The learning materials are very limited, and there is also a limitation of...
What is your experience regarding pricing and costs for Nagios Core?
Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.
What needs improvement with Nagios Core?
The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.
What is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
 

Also Known As

OpManager
No data available
 

Overview

 

Sample Customers

Bonita, Thorp Reed & Armstrong, Galaxy, Fiserv Credit Union Division, Universitas 21 Global, ERP Suites LLC
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about ManageEngine OpManager vs. Nagios Core and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.