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Nagios Core vs PRTG Network Monitor comparison

Nagios and Paessler GmbH are both solutions in the Network Monitoring Software category. Nagios is ranked #6 with an average rating of 8.3, while Paessler GmbH is ranked #5 with an average rating of 7.6. Nagios holds a 3.0% mindshare in NMS, compared to Paessler GmbH’s 4.0% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 91% of Paessler GmbH users who would recommend it.
Nagios Core
Read 51 Nagios Core reviews
  • 4,460 Views
  • 3,393 Comparison Views
80% willing to recommend
PRTG Network Monitor
Read 101 PRTG Network Monitor reviews
  • 7,844 Views
  • 5,253 Comparison Views
91% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 24, 2024

PRTG Network Monitor and Nagios Core both compete in the network monitoring solutions category. PRTG Network Monitor seems to have the upper hand due to its ease of use and scalability, while Nagios Core offers deeper customization capabilities.

Features: PRTG Network Monitor provides rapid deployment, scalability, and ease of use. It offers frequent updates, vendor support, and functionalities for network traffic, resource monitoring, and customizable alerts. Nagios Core is open-source, providing extensibility and integration opportunities, but requires significant configuration effort.

Room for Improvement: PRTG users often request more advanced application monitoring, improved graphical interfaces, and better cloud service integration. Nagios Core has areas for improvement in its outdated UI, complicated setup, and lacks cloud hosting options.

Ease of Deployment and Customer Service: PRTG deployment is straightforward with substantial documentation and diverse options, including cloud and hybrid environments. Its customer service is generally responsive. Nagios Core requires significant technical expertise for deployment, relying heavily on community resources.

Pricing and ROI: PRTG Network Monitor offers flexible licensing based on sensor numbers, providing cost efficiency. It ensures minimized downtime and proactive system management. Nagios Core, being free, offers a high return when leveraged correctly for customized monitoring needs.

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To learn more, read our detailed Nagios Core vs. PRTG Network Monitor Report (Updated: February 2025).
Buyer's Guide
Nagios Core vs. PRTG Network Monitor
February 2025
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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
8.8
Nagios Core reduces downtime and costs with quick alerts, providing full ROI and eliminating expensive monitoring tools.
Sentiment score
6.9
PRTG Network Monitor boosts efficiency by improving issue detection, reducing costs, and enabling reliable operations for small offices.
 

Customer Service

Sentiment score
5.1
Nagios Core relies on community support, praised for stability and resources, but lacks official help compared to Nagios XI.
Sentiment score
6.8
PRTG Network Monitor's customer service is mixed, with both praise for responsiveness and criticism for response times and support quality.
No quotes available
For more quotes and insights, download the Nagios Core report
Tutorials are available so I can manage any issue with PRTG Network Monitor easily.
The setup process is well-documented, making it easy to deploy.
For more quotes and insights, download the PRTG Network Monitor report
 

Scalability Issues

Sentiment score
6.7
Nagios Core shows scalability for large networks but may need customizations and integrations for distributed environments.
Sentiment score
7.3
PRTG Network Monitor is scalable and flexible, supporting various environments but requires careful planning for growth and licensing.
The solution is scalable.
For more quotes and insights, download the Nagios Core report
On a scale of one to ten, scalability is rated as 9.5.
PRTG Network Monitor has the ability to scale and add new devices.
For more quotes and insights, download the PRTG Network Monitor report
HY
Tochukwu Uzomba - PeerSpot reviewer
SA
 

Stability Issues

Sentiment score
8.2
Nagios Core is highly stable and reliable with minimal footprint, supporting extensive monitoring without network burden.
Sentiment score
7.9
PRTG Network Monitor is generally reliable, with minor configuration issues, requiring proper hardware and maintenance for optimal performance.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
For more quotes and insights, download the Nagios Core report
No quotes available
For more quotes and insights, download the PRTG Network Monitor report
 

Room For Improvement

Nagios Core needs a more intuitive interface, better scalability, and features like enhanced reporting and integration with modern tools.
PRTG Network Monitor needs improvements in templates, flexibility, apps, integrations, performance, support, security, monitoring, reporting, and costs.
No quotes available
For more quotes and insights, download the Nagios Core report
They need to improve application performance monitoring, error tracing mechanisms, and log management.
PRTG Network Monitor should provide syslog monitoring since it is not available at this time.
For more quotes and insights, download the PRTG Network Monitor report
 

Setup Cost

Nagios Core is a free, cost-effective open-source tool, but requires Linux expertise and incurs hosting and maintenance costs.
PRTG Network Monitor's tiered pricing is economical but can be costly for large-scale use, with flexible licensing options.
No quotes available
For more quotes and insights, download the Nagios Core report
Pricing is by the number of devices, not by sensor.
The prices are very high for PRTG Network Monitor.
For more quotes and insights, download the PRTG Network Monitor report
 

Valuable Features

Nagios Core provides flexible, low-resource monitoring with customization, automation, efficient alerts, and integration support for reliable IT performance visibility.
PRTG Network Monitor provides efficient deployment, real-time monitoring, customization, and supports various environments with advanced features and responsive support.
It has a very handy dashboard, providing live alerts and visibility for everything.
For more quotes and insights, download the Nagios Core report
PRTG Network Monitor already provided me with 100 free sensors, which is enough for my network monitoring.
The pricing is affordable compared to SolarWinds.
For more quotes and insights, download the PRTG Network Monitor report
HY
SA
Tochukwu Uzomba - PeerSpot reviewer
 

Categories and Ranking

Nagios Core
Ranking in Network Monitoring Software
6th
Ranking in IT Infrastructure Monitoring
9th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
No ranking in other categories
PRTG Network Monitor
Ranking in Network Monitoring Software
5th
Ranking in IT Infrastructure Monitoring
8th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
101
Ranking in other categories
Cloud Monitoring Software (8th)
 

Mindshare comparison

As of February 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 3.0%, down from 3.1% compared to the previous year. The mindshare of PRTG Network Monitor is 4.0%, down from 5.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

Nishith-Vyas - PeerSpot reviewer
Valuable reporting and alert system with room for PDF export improvements
The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.
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Tochukwu Uzomba - PeerSpot reviewer
Efficiently monitor networks across regions with seamless setup and robust feature set
PRTG Network Monitor is easy to set up. Within a few minutes, it is operational. It is an all-in-one monitoring solution without extra costs. For example, we set it up for an insurance company with branches across Africa. We are able to monitor from Lagos without installing anything in the branches, using the agentless feature. We just put in the IP address and the parameter, and we monitor from those ends. Additionally, all the sensors are very useful. Most people are interested in the bandwidth monitoring sensor to see what bandwidth the users are consuming. The pricing is affordable compared to SolarWinds.
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Comparison Review

it_user174738 - PeerSpot reviewer
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…
Read full review
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
10%
Manufacturing Company
9%
Government
9%
Educational Organization
54%
Computer Software Company
7%
Government
5%
Financial Services Firm
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nagios Core?
What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.
See all answers
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.
See all answers
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.
See all answers
What is the best network monitoring software for large enterprises?
PRTG network monitor is one of the best tool i have ever used for the monitoring. It have auto discovery option. it avoid the configuring the device in PRTG. It automatically discover the device an...
See all answers
What do you like most about PRTG Network Monitor?
The tool is integrated with our email for the alerts.
See all answers
What is your experience regarding pricing and costs for PRTG Network Monitor?
The prices are very high for PRTG Network Monitor. That's why I'm using the free100 sensor license.
See all answers
 

Comparisons

Icinga vs Nagios Core Logo
Icinga vs Nagios Core
Compared 26% of the time
Nagios XI vs Nagios Core Logo
Nagios XI vs Nagios Core
Compared 21% of the time
Zabbix vs Nagios Core Logo
Zabbix vs Nagios Core
Compared 16% of the time
Centreon vs Nagios Core Logo
Centreon vs Nagios Core
Compared 10% of the time
Meraki Dashboard vs Nagios Core Logo
Meraki Dashboard vs Nagios Core
Compared 1% of the time
More Nagios Core Competitors
LibreNMS vs PRTG Network Monitor Logo
LibreNMS vs PRTG Network Monitor
Compared 8% of the time
Zabbix vs PRTG Network Monitor Logo
Zabbix vs PRTG Network Monitor
Compared 7% of the time
Centreon vs PRTG Network Monitor Logo
Centreon vs PRTG Network Monitor
Compared 7% of the time
SolarWinds NPM vs PRTG Network Monitor Logo
SolarWinds NPM vs PRTG Network Monitor
Compared 6% of the time
Nagios XI vs PRTG Network Monitor Logo
Nagios XI vs PRTG Network Monitor
Compared 5% of the time
More PRTG Network Monitor Competitors
 

Product Reports

Buyer's Guide
Nagios Core
February 2025
Nagios Core reportDownload Nagios Core product report
Buyer's Guide
PRTG Network Monitor
February 2025
PRTG Network Monitor reportDownload PRTG Network Monitor product report
 

Overview

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios

PRTG Network Monitor runs on a Windows machine within your network, collecting various statistics from the machines, software, and devices which you designate. PRTG comes with an easy-to-use web interface with point-and-click configuration. You can easily share data from it with non-technical colleagues and customers, including via live graphs and custom reports. This will let you plan for network expansion, see what applications are using most of your connection, and make sure that no one is hogging the entire network just to torrent videos.

To monitor a large IT environment, it's important to be able to scale PRTG up. Paessler PRTG Enterprise Monitor includes all the proven capabilities of PRTG Network Monitor, which are enhanced by exclusive ITOps Board for a service-oriented, central overview of multiple PRTG servers.

Paessler GmbH
 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Jameson Bank, Sidnix, RungeICT, MedicalAnimal, Truck-lite, GamingGrids, The Covell Group, Forsythn County Schools, NetMass, Musgrove Park Hospital, Lanes Health, Columbia Southern University, Vodafone, Intrust Bank
Buyer's Guide
Nagios Core vs. PRTG Network Monitor
February 2025
Free Report: Nagios Core vs. PRTG Network Monitor
Find out what your peers are saying about Nagios Core vs. PRTG Network Monitor and other solutions. Updated: February 2025.
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