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Nagios Core vs OmniPeek comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 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

Nagios Core
Ranking in Network Monitoring Software
10th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
IT Infrastructure Monitoring (11th)
OmniPeek
Ranking in Network Monitoring Software
45th
Average Rating
7.8
Reviews Sentiment
6.0
Number of Reviews
8
Ranking in other categories
Application Performance Monitoring (APM) and Observability (35th)
 

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of Nagios Core is 1.9%, down from 3.0% compared to the previous year. The mindshare of OmniPeek is 0.5%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core1.9%
OmniPeek0.5%
Other97.6%
Network Monitoring Software
 

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.
Vinal-Patel - PeerSpot reviewer
Network Architect, internally known as Network Transformation Lead at a pharma/biotech company with 10,001+ employees
Real-time analytics and alerts improve application performance and network operations
OmniPeek's ability to convert application visibility into flow helps me quickly understand application performance over LAN, WAN, or wireless. Its real-time analytics, integrated with LiveNX, allow me to monitor business-critical applications and set up alerts for application performance issues. This centralized dashboard and alert system is highly valuable for maintaining network operations.

Quotes from Members

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

Pros

"Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."
"Nagios Core is very configurable. Whatever you want, you can do it."
"The reporting structure and the feature set are valuable to me."
"Provides timely notifications."
"It is fairly easy to set up, and we can monitor pretty much everything we want to."
"I would rate the overall solution ten points out of ten."
"The application performance monitoring feature is valuable."
"Key features include the GUI interface, its notification capabilities, and the real-time reporting."
"The most valuable feature of OmniPeek was the ability it gave us to see the connection procedure."
"OmniPeek shows the entire packet flow and structure, particularly in security-related scenarios, whereas Wireshark sometimes fails to capture all packets."
"I believe the most crucial feature of OmniPeek search is the ability to sniff packets based on channel switching."
"OmniPeek's ability to convert application visibility into flow helps me quickly understand application performance over LAN, WAN, or wireless."
"The most valuable feature of OmniPeek is the ability to assign custom color codes to the different packets easily."
"It's a solid piece of software. It's stable."
"The most valuable features are the voice bot, which checks the quality of service for voice, and the expert view that gives me insight on what and where to troubleshoot."
"The most valuable feature is OmniPeek is user-friendly."
 

Cons

"The initial setup process could be easier."
"Nagios Core does not have a graphic display."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"The user interface could be more interactive because it is pretty basic."
"The tool needs to improve the integrations."
"It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through."
"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."
"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 don't see a clear roadmap in the future for improving this software."
"I am not using OmniPeek for automation, we only do manual testing. Automation testing is tedious to do. The automation should be more user-friendly. I have exposed some APIs but the usage is not user-friendly."
"I would like to see the tool work in an open environment the same as how it does in a closed environment."
"I would like to see the saving feature improved. We have had issues if you do not save your progress then you have to start from the beginning."
"The solution's automation has room for improvement."
"OmniPeek doesn't support Linux or Unix installations, which prompted the shift to Wireshark."
"Making it more clear on how to configure the filters, or really automating them, would be an improvement."
 

Pricing and Cost Advice

"We are using the free version."
"Most the plugin features are free."
"The product is cheaply priced."
"Nagios Core is a cheap solution."
"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."
"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."
"There are different types of licenses available."
"We have only purchased the add-on once and have not paid for any subsequent versions as it was too costly for us."
"The pricing for this solution could be improved, as it is a very expensive product."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
10%
Comms Service Provider
9%
Government
8%
Educational Organization
10%
Comms Service Provider
9%
Manufacturing Company
9%
University
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise22
By reviewers
Company SizeCount
Midsize Enterprise1
Large Enterprise7
 

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 needs improvement with OmniPeek?
There isn't anything specific that needs improvement in OmniPeek, as it performs better than Wireshark for our requirements. However, OmniPeek could benefit from supporting different platforms. Pla...
What is your primary use case for OmniPeek?
I have been working with the OmniPeek product for almost two years at the start of my career, primarily using it for wireless 802.11 Wi-Fi packets, sniffer, and analysis. My experience with OmniPee...
What advice do you have for others considering OmniPeek?
I didn't explore much about OmniPeek beyond its basic features. OmniPeek is user-friendly and easy to start working with, especially on the Windows platform. For beginners, it is very easy to handl...
 

Comparisons

 

Also Known As

No data available
Savvius OmniPeek
 

Overview

 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Apcon, Aruba Networks, Avaya Inc., Cisco Systems, Ekahau, Gigamon Systems, HP, IBM, IXIA, Meru Networks, Napatech, NextComputing, Procera Networks, Qualcomm Atheros, Ralink Technology Corporation, Telchemy
Find out what your peers are saying about Nagios Core vs. OmniPeek and other solutions. Updated: December 2025.
881,176 professionals have used our research since 2012.