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Icinga vs Nagios Core comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 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

Icinga
Ranking in Network Monitoring Software
42nd
Ranking in IT Infrastructure Monitoring
49th
Average Rating
7.6
Reviews Sentiment
6.1
Number of Reviews
17
Ranking in other categories
Server Monitoring (15th), Cloud Monitoring Software (34th)
Nagios Core
Ranking in Network Monitoring Software
19th
Ranking in IT Infrastructure Monitoring
16th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Network Monitoring Software category, the mindshare of Icinga is 1.1%, down from 3.0% compared to the previous year. The mindshare of Nagios Core is 1.3%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.3%
Icinga1.1%
Other97.6%
Network Monitoring Software
 

Featured Reviews

reviewer2292201 - PeerSpot reviewer
Innovation Service Manager at a tech services company with 201-500 employees
Easy to use, and it's possible to customize the product as per the needs we may have but average multi-tenancy aspect
It's supported by the community. We use Icinga, which is not part of the Open-Source platform but is wrapped into a commercial solution from another provider, a local provider in Italy. Icinga is an open-source platform, so it is supported by the community. It's quite easy to use, and it's possible to customize the product as per the needs we may have. So it's not expensive, and it's quite a general purpose. We can easily monitor any kind of infrastructure we encounter. The ability to customize scripts and build your own queries to request information from the infrastructure elements you want to monitor. This level of personalization and customization is highly appreciated. The alerting is the same as any other monitoring platform. It's not a "wow" feature that has changed our lives, but it's perfectly adequate.
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.

Quotes from Members

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

Pros

"The drafts are easy but what I like about Icinga is that there are many add-ons that you can download."
"It is really easy in Icinga to create your own plugin and integrate it without any fuss. And it works just perfectly fine."
"The ability to customize scripts and build your own queries to request information from the infrastructure elements you want to monitor. This level of personalization and customization is highly appreciated."
"An affordable solution for small organizations to do basic network monitoring."
"We monitor all, starting from UPS to international mail chains."
"There's a module called Icinga Director, which helps us configure the product using an intuitive interface through clicks instead of creating a text configuration. It's very helpful for us."
"Icinga does the job and is fairly stable."
"I would recommend Icinga; it's an open-source solution, it's quite easy and simple to use, and checks can be run with Python code and Shell Script code."
"I like the way the solution sends alerts and how it keeps on escalating them."
"Nagios doesn't get the respect it deserves; most likely due to the fact that it doesn't have a licensing cost."
"The notifications are definitely one of the most valuable features of Nagios Core. We know what to look for and what to expect when things are down."
"Nagios Core is stable."
"Extensibility is good as this makes it easy to write checks on your own."
"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."
"We use the product to monitor server applications."
"Nagios Core is a great solution for monitoring pretty much any size of deployment but you do need to know your way around a Linux system to set it up and run it."
 

Cons

"Icinga is a complex solution that's hard to learn. It's a powerful product for monitoring, but new users will have a hard time figuring out what to do."
"Sometimes, it is very hard to keep an overview of what's happening."
"The user interface should be improved."
"There is room for improvement in multi-tenancy. It's not perfect, not even really good. It's average, but it should be improved."
"Icinga’s automation could be improved."
"One of the areas that are frustrating is remote monitoring for more than one machine."
"We have found some problems with Nagios, and support isn't very responsive."
"At this time, the layout of the website is a bit difficult. It should be more user-friendly for changing the background and logos."
"The scalability needs improvement, it's not scalable at this time."
"It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through."
"Nagios Core is not easy to use, so I don't recommend it for everyone."
"This is the open source product, so it's a toolkit rather than a complete solution."
"The configuration and reporting modules need to be improved."
"We use the free version of Nagios, which needs some administrative skills in order to configure correctly."
"The dashboard should be improved."
"The mapping is a little hard."
 

Pricing and Cost Advice

"We're using the free version of Icinga."
"Even though Icinga's financial cost is low, it is an expensive product regarding the resources required to maintain and operate it."
"This is an open-source solution with paid support."
"It's an open-source solution."
"It is cost-effective, and the return on investment can be very interesting because the price is low."
"The product is inexpensive compared to other DBM products."
"The solution is free to use."
"The solution is cheap."
"Most the plugin features are free."
"It's free."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
"Nagios Core is an open source solution, and there are no licensing fees."
"It's free."
"The product is cheaply priced."
"Nagios Core is free to use."
"We are using the free version."
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Top Industries

By visitors reading reviews
Educational Organization
14%
Comms Service Provider
13%
University
11%
Financial Services Firm
9%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
7%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise8
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
 

Questions from the Community

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Earn 20 points
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...
 

Comparisons

 

Also Known As

Icinga Cloud Monitoring
No data available
 

Overview

 

Sample Customers

Puppet Labs, Audi, Spacex, Debian, Snapdeal, McGill, RIPE Network Coordination Centre
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about Icinga vs. Nagios Core and other solutions. Updated: September 2026.
913,654 professionals have used our research since 2012.