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Nagios Core 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 Core
Ranking in IT Infrastructure Monitoring
11th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
Network Monitoring Software (11th)
Netdata
Ranking in IT Infrastructure Monitoring
31st
Average Rating
9.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
Server Monitoring (15th), Cloud Monitoring Software (20th)
 

Mindshare comparison

As of June 2026, in the IT Infrastructure Monitoring category, the mindshare of Nagios Core is 1.7%, down from 3.6% compared to the previous year. The mindshare of Netdata is 1.1%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring Mindshare Distribution
ProductMindshare (%)
Nagios Core1.7%
Netdata1.1%
Other97.2%
IT Infrastructure Monitoring
 

Featured Reviews

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.
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

"This is probably the greatest advantage of Nagios - it can be customized to a degree to suit your monitoring needs."
"The application performance monitoring feature is valuable."
"The solution is very complete and mostly easy to manage."
"The scalability of Nagios Core is very good, we can add as many hosts as we like, and we can work with the concept master and client, making it very scalable and easy to use."
"Extensibility is good as this makes it easy to write checks on your own."
"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."
"This product covers all of our infrastructure health checks, and has triggers for us to alert us to any unusual behaviour of the monitored systems."
"I like the way the solution sends alerts and how it keeps on escalating them."
"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."
"Netdata has positively impacted my organization by improving downtime and incident response workflows through real-time visibility into infrastructure and application performance."
 

Cons

"Some of the reporting functionality is a bit basic and configuration is a chore although by the use of NagiosQL this can be made a lot easier."
"Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do."
"Nagios SLA. I'm currently working on Nagios Digger, which has many code-level problems."
"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 would benefit from aggregations if a particular server goes down."
"Nagios Core can improve the graphical interface, it would make things a little easier."
"We use the free version of Nagios, which needs some administrative skills in order to configure correctly."
"Don't use it. If you're starting from scratch, there are products that scale better and perform better, and they use the same plugin syntax as they were initially Nagios forks."
"The key area for improvement is data retention and historical analysis."
 

Pricing and Cost Advice

"Lessening the price point would be an improvement."
"Nagios Core is a cheap solution."
"It's free."
"The product is cheaply priced."
"I would rate the solution's pricing an eight out of ten."
"Nagios Core is an open source solution, and there are no licensing fees."
"Most the plugin features are free."
"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."
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Top Industries

By visitors reading reviews
Manufacturing Company
10%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
7%
Transportation Company
64%
Comms Service Provider
6%
Computer Software Company
4%
Financial Services Firm
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
No data available
 

Questions from the Community

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...
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?
Netdata can be improved by incorporating AI-driven anomaly detection and predictive monitoring capabilities to forecast potential bottlenecks. Additionally, broader native integrations with enterpr...
What is your primary use case for Netdata?
Netdata serves as my real-time monitoring and observability platform for infrastructure and application performance monitoring, providing highly detailed real-time metrics with minimal setup and lo...
 

Comparisons

 

Overview

 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Information Not Available
Find out what your peers are saying about Nagios Core vs. Netdata and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.