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Nagios XI 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 XI
Ranking in Network Monitoring Software
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (8th), IT Infrastructure Monitoring (13th), Cloud Monitoring Software (22nd)
OmniPeek
Ranking in Network Monitoring Software
48th
Average Rating
7.8
Reviews Sentiment
6.0
Number of Reviews
8
Ranking in other categories
Application Performance Monitoring (APM) and Observability (37th)
 

Mindshare comparison

As of July 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.5%, down from 3.2% compared to the previous year. The mindshare of OmniPeek is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.5%
OmniPeek0.6%
Other96.9%
Network Monitoring Software
 

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.
AK
Senior Software Engineer at Microchip Technology Inc.
Helps analyze network packets effectively and saves time for testers
I have utilized the packet capturing capabilities in OmniPeek. Using the Alpha sniffer and hardware-supported network devices, we can perform sniffer capturing for Wi-Fi wireless packets and router packets. The interface allows us to capture packets and observe connection establishment, data transfer, and the downloading and uploading of packets, such as TCP and UDP packets. The software works for both wireless and wired connections, including Ethernet. As a wireless test engineer in the wireless industry, the features of OmniPeek help me monitor network activity. While there are alternatives such as Wireshark, OmniPeek supports Windows and is particularly helpful for testers, especially for device certification validation. This software enables packet analysis to verify protocol compliance and identify issues. For developers, packet captures from OmniPeek assist in understanding and debugging issues.

Quotes from Members

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

Pros

"Though I downplayed the administrative NCC GUI, this is by far the strongest aspect of the Nagios XI product."
"It's an essential part of our infrastructure, and we'll keep using it."
"Nagios XI is an outstanding network Monitoring tool, which can be tweaked to suit any environment and it is a good solution for business looking for remarkable features at zero cost."
"All of them, but mainly: Highly-efficient server performance monitoring engine Configuration wizards Infrastructure management Configuration snapshot."
"It's very easy to install it and manage it with Nagios XI's interface."
"The product allows comprehensive monitoring of your environment, from basic monitoring of your servers health to more complex tasks like AD, database, and, to some extent, application-level monitoring."
"In my view this product is very good value for money when compared with other commercially provided monitoring solutions."
"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 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."
"OmniPeek is a good product, but you should know its purpose for your organization."
"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."
"The most valuable feature is OmniPeek is user-friendly."
"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."
 

Cons

"The user interface needs improvement."
"The interface could be more user-friendly."
"The PNP4Nagios plugin not working easily with XI is an issue for me, because some open source monitoring plugins do not work out of the box. But in the end, you learn to live with it."
"The installation can get very difficult depending on what Linux flavour you are using."
"Technical support is very good but is very expensive. It is becoming more and more expensive just like the upgrade."
"The product does not have SAP monitoring."
"From an alerting point of view, some graphics and metrics don't work properly with Nagios XI as they do with Checkmk."
"I would like to see support for notification via SMS."
"OmniPeek doesn't support Linux or Unix installations, which prompted the shift to Wireshark."
"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."
"The solution's automation has room for improvement."
"Sometimes setting up the filters for the product is difficult, and I can't quickly sharpen them from the home screen."
"OmniPeek needs to improve its performance level."
"Making it more clear on how to configure the filters, or really automating them, would be an improvement."
"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."
 

Pricing and Cost Advice

"Licensing costs are reasonable."
"The licensing fees for this solution are approximately $3,000 USD per year."
"Nagios XI is an expensive solution."
"Nagios XI is open source."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"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."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"We are using the free version of this solution."
"The pricing for this solution could be improved, as it is a very expensive product."
"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."
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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%
Construction Company
8%
Manufacturing Company
7%
Comms Service Provider
7%
Comms Service Provider
12%
Manufacturing Company
10%
Construction Company
8%
Healthcare Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Midsize Enterprise1
Large Enterprise7
 

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 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

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
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 XI vs. OmniPeek and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.