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Checkmk vs Nagios XI comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 6, 2024

Review summaries and opinions

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

Categories and Ranking

Checkmk
Ranking in Network Monitoring Software
11th
Ranking in Server Monitoring
9th
Ranking in IT Infrastructure Monitoring
27th
Ranking in Cloud Monitoring Software
18th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
No ranking in other categories
Nagios XI
Ranking in Network Monitoring Software
27th
Ranking in Server Monitoring
14th
Ranking in IT Infrastructure Monitoring
29th
Ranking in Cloud Monitoring Software
25th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of December 2025, in the IT Infrastructure Monitoring category, the mindshare of Checkmk is 3.5%, up from 2.9% compared to the previous year. The mindshare of Nagios XI is 3.0%, down from 3.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring Market Share Distribution
ProductMarket Share (%)
Checkmk3.5%
Nagios XI3.0%
Other93.5%
IT Infrastructure Monitoring
 

Featured Reviews

reviewer1704309 - PeerSpot reviewer
IT Administrator at a construction company with 201-500 employees
Utilizing data monitoring capabilities and scripting potential to optimize system management
I frequently program functions with PowerShell, and although Bash could be used, my specialization is in PowerShell. Two of us focus on programming in PowerShell for infrastructure optimization. I set up a dedicated server to run scripts every hour, generating files for Checkmk output. However, Checkmk does not allow running scripts at varying intervals. I am working on this in the raw version of Checkmk.
Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.

Quotes from Members

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

Pros

"Overall, from one to ten, I rate Checkmk a nine."
"The alerting system in Checkmk really works properly."
"I really like the auto-discovery feature."
"Checkmk helps me compare data and foresee issues."
"The initial setup of Checkmk was easy...It is a very stable solution."
"The most valuable feature of the solution is that it has a lot of different pieces, and they all work together...It is a very scalable solution. Scalability-wise, I rate the solution a ten out of ten."
"The most valuable features of Checkmk are its resource monitoring, infra monitoring, and log factor configuration."
"It's versatile, scalable, and easier to use compared to other solutions like Nagios and OMD."
"You want to monitor a specific metric that nobody else has? You can do it even with the most basic of scripting skills, and you can always share it with the vast community of Nagios Exchange."
"This is a very good solution and it is simple to use, for any company."
"The features I've found the most useful are the plug-ins, the fact that you can connect almost everything to it. That's very useful."
"Nagios XI is stable."
"Nagios is a custom API manager, and we can expose custom APIs for our integration. This is a great feature."
"I can monitor a software made in-house to software of bigger companies."
"It is an open-source platform with valuable features for performance and stability."
"Nagios is stable and it's easy to use the monitoring software, which is why we chose this product."
 

Cons

"The initial setup is a bit complex."
"If an alert is generated for a specific pattern in the log, and if Checkmk catches that log, it will stay there even after the alert is resolved."
"The main challenge for us is that we're moving from Nagios to Checkmk, and we're still getting used to the new way of working."
"I think that the integration and the exporting of the data collected are areas where Checkmk lacks but should try to improve the most."
"It is easy for tech-savvy people, but newcomers might find it intimidating."
"Checkmk does not allow running scripts at varying intervals."
"Checkmk does not work too easily with the PowerStore. I use a PowerShell script as Checkmk runs on Linux and a Windows system, connecting with the Checkmk agent."
"Sometimes we receive alerts, and it can become annoying when you acknowledge an alert. It is very clunky when you acknowledge the alert. The process is not very intuitive, and there are instances where it feels a bit cumbersome to acknowledge an alert."
"It can be quite difficult to know which drivers and agents to use when setting up."
"The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate."
"Technical support is an area that needs improvement. It is not available 24/7."
"The user interface needs improvement."
"There's room for improvement in the visibility, and in the ability to extract information. Stuff like this should be more simple."
"I would like to be able to extend it to all of our data centers, whether they are in the cloud or not. It would be helpful if I could connect everywhere."
"The technical support is variable - sometimes I get answers, but most of my tickets go unanswered."
"The product could be optimized to improve the administrative user experience via the Nagios Core Configuration (NCC) GUI module."
 

Pricing and Cost Advice

"The product is affordable."
"The price of Checkmk is cheaper compared to other enterprise products."
"Checkmk is a fairly reasonably priced solution."
"We are using the free version of this solution."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"For our country in North Africa, it's expensive and we could purchase another solution for that price. But it's a reasonable price if we're speaking in international terms."
"Licensing costs are reasonable."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"Nagios XI is open source."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"The licensing fees for this solution are approximately $3,000 USD per year."
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Computer Software Company
10%
Government
9%
Manufacturing Company
9%
Financial Services Firm
7%
Computer Software Company
12%
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise3
Large Enterprise2
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
 

Questions from the Community

What needs improvement with Checkmk?
I will get more information about Checkmk when the proof of concept is done. It's going to be before the summer. There will be a report about the tool and a recommendation to use it. So far, it loo...
What is your primary use case for Checkmk?
Checkmk ( /products/checkmk-reviews ) is a monitoring tool, so that's what I will use it for. Right now, it's not in production, but it's in a proof of concept phase. It looks good, so probably, du...
What advice do you have for others considering Checkmk?
I would rate Checkmk an eight out of ten, not knowing the final report.
What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services runnin...
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Find out what your peers are saying about Checkmk vs. Nagios XI and other solutions. Updated: December 2025.
879,310 professionals have used our research since 2012.