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Nagios XI vs Netdata comparison

 

Comparison Buyer's Guide

Executive Summary

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

Nagios XI
Ranking in Server Monitoring
9th
Ranking in IT Infrastructure Monitoring
17th
Ranking in Cloud Monitoring Software
20th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Network Monitoring Software (16th)
Netdata
Ranking in Server Monitoring
16th
Ranking in IT Infrastructure Monitoring
33rd
Ranking in Cloud Monitoring Software
21st
Average Rating
9.6
Reviews Sentiment
5.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Server Monitoring category, the mindshare of Nagios XI is 6.1%, down from 6.3% compared to the previous year. The mindshare of Netdata is 2.0%, down from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Server Monitoring Mindshare Distribution
ProductMindshare (%)
Nagios XI6.1%
Netdata2.0%
Other91.9%
Server Monitoring
 

Featured Reviews

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.
YS
Site Reliability Engineer at a tech vendor with 5,001-10,000 employees
Real-time monitoring has improved incident detection and simplifies per-second troubleshooting
The key area for improvement is data retention and historical analysis. Netdata is excellent for real-time monitoring, but for long-term storage and deep historical insights, it usually needs to be integrated with other tools. Improving built-in long-term retention would make it more complete. Another area I see is data aggregation, where it correlates multiple nodes; while it provides great per-node visibility, having more advanced centralized views and correlations across systems would help in larger-scale environments. Customization of alerts and anomaly detection could also be enhanced. One area needing improvement is access control and security features. Stronger RBAC and user management would help control who can view data. Another area would be customization of dashboards, alerting integrations, and improving enterprise-level scalability features.

Quotes from Members

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

Pros

"Simplicity of configuration; I can set up configuration of 100 devices with about 10 services in one to two days."
"The most valuable feature is the monitoring of processes."
"You can save a lot of time using Nagios monitoring because otherwise you need to check all of your services or system one by one."
"The overall performance of the product is superb."
"All of them, but mainly: Highly-efficient server performance monitoring engine Configuration wizards Infrastructure management Configuration snapshot."
"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."
"Overall, it's a powerful system."
"The most valuable feature is the monitoring of processes."
"Netdata has positively impacted my organization by improving downtime and incident response workflows through real-time visibility into infrastructure and application performance."
"The biggest ROI I have seen is in incident detection, with improvements of forty to fifty percent, troubleshooting time by thirty to forty percent, and productivity gains of around twenty-five to thirty percent."
 

Cons

"WebUI should be improved (visual aspect) and should incorporate non-relational databases."
"While this solution works, I think that it can be improved in terms of maintenance, support, and price."
"We often need to develop custom plugins to get Nagios to work the way we want it to work because the features we need are not always available in Nagios."
"I would like to see more customization in the network map because it is a bit tricky to use it."
"We'd like to see more integration capabilities."
"The product does not have SAP monitoring."
"Reporting items needs more improvement and need to be more flexible based on customer needs."
"The user interface needs improvement."
"The key area for improvement is data retention and historical analysis."
 

Pricing and Cost Advice

"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
"The pricing is high with separate licensing for the product and support."
"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
"Licensing costs are reasonable."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"As it is not an agentless tool, I think it is expensive."
"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."
Information not available
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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
Financial Services Firm
10%
Computer Software Company
8%
Comms Service Provider
7%
Manufacturing Company
7%
Transportation Company
65%
Comms Service Provider
6%
Computer Software Company
4%
Financial Services Firm
3%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
No data available
 

Questions from the Community

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...
What is your experience regarding pricing and costs for Netdata?
As I am going with the subscription-based model in the SaaS, the pricing and setup cost are very nice, and the setup is very easy since I am running the server inside GCP.
What needs improvement with Netdata?
The key area for improvement is data retention and historical analysis. Netdata is excellent for real-time monitoring, but for long-term storage and deep historical insights, it usually needs to be...
What is your primary use case for Netdata?
I have been using Netdata for the past one and a half years, mainly for real-time monitoring and quick visibility into system performance. During this time, I have used it to monitor CPU, memory, d...
 

Comparisons

 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Information Not Available
Find out what your peers are saying about Zabbix, Broadcom, NinjaOne and others in Server Monitoring. Updated: April 2026.
896,099 professionals have used our research since 2012.