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GroundWork Monitor vs Nagios Core comparison

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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

GroundWork Monitor
Ranking in Network Monitoring Software
100th
Ranking in IT Infrastructure Monitoring
75th
Average Rating
8.0
Reviews Sentiment
8.0
Number of Reviews
1
Ranking in other categories
IT Operations Analytics (22nd), Cloud Monitoring Software (52nd)
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 GroundWork Monitor is 0.4%, up from 0.1% 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%
GroundWork Monitor0.4%
Other98.3%
Network Monitoring Software
 

Featured Reviews

it_user186582 - PeerSpot reviewer
Sr PC/Client Server Analyst II at a individual & family service with 10,001+ employees
It's easy to setup and the plugins are easy to write. When we need to, the threshold is easy to change.
It's easy to setup and the plugins are easy to write. When we need to, the threshold is easy to change It would be nice to have a centralized client-settings management. At the moment, the client settings have to be changed individually. I've used it since 2011. The deployment of the new server…
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

"It's easy to setup and the plugins are easy to write."
"We have the ability right now to see and create reports to tell whether or not we're meeting our SLAs on our production servers, through it."
"This is probably the greatest advantage of Nagios - it can be customized to a degree to suit your monitoring needs."
"Using Nagios, I'm managing more than 1000 services, which involves the following operating nodes: IBM AIX, Red Hat Enterprise Linux, HP-Unix, Windows enterprise-grade OS, Cisco router/switches, FortiGate and WatchGuard firewalls, APC UPS systems, and many more."
"This is a fit for purpose product which means that if you have a definite list of requirements and are not willing, or unable, to spend money on big enterprise tools, then Nagios is a tool to go to."
"You should really try Nagios; it will help a lot and I have found that it is the best buddy for system admins."
"I like the way the solution sends alerts and how it keeps on escalating them."
"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."
"Nagios doesn't get the respect it deserves; most likely due to the fact that it doesn't have a licensing cost."
 

Cons

"Deploying an agent leaves much to be desired."
"The configuration and reporting modules need to be improved."
"The initial setup was complex, mainly because it was in Linux and had many packages that we're not used to."
"The dashboard and monitoring features could be improved."
"It would be nice if the company offered a sales or contract manager that was dedicated to our company so that we would have some sort of link to Nagios, and if we had issues or questions, we'd be able to contact them directly."
"I believe Nagios Core will need to provide an option for big data platforms in the future."
"The UI is a little outdated and graphics could be displayed in a better way."
"Nagios Core is not easy to use, so I don't recommend it for everyone."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
 

Pricing and Cost Advice

Information not available
"The solution is expensive."
"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."
"We are using the free version of Nagios Core."
"Most the plugin features are free."
"Nagios Core is an open source solution, and there are no licensing fees."
"Nagios Core is a cheap solution."
"We are using the open-source, unpaid version."
"The enterprise version has technical support. The version we are using is free."
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Top Industries

By visitors reading reviews
Construction Company
29%
Financial Services Firm
20%
Comms Service Provider
9%
Outsourcing Company
9%
Comms Service Provider
10%
Manufacturing Company
9%
Outsourcing Company
7%
Financial Services Firm
7%
 

Company Size

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

Questions from the Community

Ask a question
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

GWOS
No data available
 

Overview

 

Sample Customers

Swiss Life, JBFCS, Capital Markets Cooperative Research Centre
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about Zabbix, SolarWinds, Datadog and others in Network Monitoring Software. Updated: September 2026.
914,805 professionals have used our research since 2012.