Nmap vs OP5 Monitor comparison

Nmap and ITRS are both solutions in the Network Monitoring Software category. Nmap is ranked #30 with an average rating of 8.8, while ITRS is ranked #39 with an average rating of 9.0. Nmap holds a 0.9% mindshare in NMS, compared to ITRS’s 0.6% mindshare. Additionally, 100% of Nmap users are willing to recommend the solution, compared to 100% of ITRS users who would recommend it.

Nmap

Read 23 Nmap reviews

4,380 Views
4,117 Comparison Views

100% willing to recommend

OP5 Monitor

Read 7 OP5 Monitor reviews

2,454 Views
1,865 Comparison Views

100% willing to recommend

Nmap

OP5 Monitor

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Oct 10, 2024

Nmap and OP5 Monitor are competing products in the realm of network management and monitoring. Nmap typically has the upper hand in the domain of network scanning and mapping, while OP5 Monitor provides an extensive range of monitoring capabilities, offering a comprehensive suite for users.

Features: Nmap provides features like network discovery, robust security auditing, and efficient port scanning. OP5 Monitor offers comprehensive monitoring solutions, with capabilities such as application monitoring, network tracking, and multi-level alert systems, advantageous for organizations seeking a holistic approach.

Room for Improvement:Nmap could improve its reporting and visualization tools, enhance user interface, and add more extensive customer support options. OP5 Monitor could have a more streamlined interface, reduce its complexity, and improve its integration with third-party tools for better usability.

Ease of Deployment and Customer Service: Nmap is generally easier to deploy with straightforward operations suited for network scanning needs. OP5 Monitor, though having more functions, has a steeper learning curve and utilizes supported deployment models with customer service to aid complex solutions.

Pricing and ROI:Nmap is cost-effective with minimal setup costs and quick ROI due to its efficient network assessment features. OP5 Monitor requires a larger initial investment, which is often justified by its extensive monitoring features and potential long-term ROI through enhanced network management.

To learn more, read our detailed Nmap vs. OP5 Monitor Report (Updated: April 2026).

Buyer's Guide

Nmap vs. OP5 Monitor

April 2026

Download the complete report

Helped 894,738 peers since 2012

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

Nmap

Ranking in Network Monitoring Software

30th

Average Rating

8.6

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

No ranking in other categories

OP5 Monitor

Ranking in Network Monitoring Software

39th

Average Rating

8.6

Reviews Sentiment

4.4

Number of Reviews

Ranking in other categories

IT Infrastructure Monitoring (42nd)

Mindshare comparison

As of May 2026, in the Network Monitoring Software category, the mindshare of Nmap is 0.9%, up from 0.5% compared to the previous year. The mindshare of OP5 Monitor is 0.6%, down from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Mindshare Distribution
Product	Mindshare (%)
Nmap	0.9%
OP5 Monitor	0.6%
Other	98.5%

Network Monitoring Software

Featured Reviews

Sai Aditya Panda

Student at a consultancy with 11-50 employees

Penetration testing has become efficient as I identify open ports and security risks with confidence

Nmap could potentially become a GUI and provide automatic reports with one-click downloads. For example, the report could show all the open ports for an IP address with a professionally formatted report. This is a far-fetched suggestion and not really required, but it could make the work a little better. On a scale of one to ten, I give Nmap a solid nine. I mean, how can you fix something that is not broken? Nmap is already the best, and I do not think there are any other features that can be added. Its job is reconnaissance, so I do not think there is more to add to it. However, if I get any ideas, I will let them know about this.

Read full review

Sumanth Arshanapally

Senior Analyst at a tech vendor with 10,001+ employees

Monitoring ease and cost-saving benefits enhance operational efficiency

The monitoring in OP5 Monitor is very easy because we can directly use custom plugins. We can write custom scripts and use those scripts directly. It's very low cost, open, and the dashboards are easy to see. We can extract the reports easily, and this is very easy to compare. Real-time monitoring in OP5 Monitor provides data every one minute or every five minutes, enabling us to get live data from the last one minute or last five minutes. OP5 Monitor gave us proper server availability, so we can always check whether a server goes down or the server CPU and memory decreases. Before reaching a particular bottleneck situation, we identified and fixed the issue, which helped us from a cost-saving business perspective. It helped us avoid application downtime.

Read full review

Quotes from Members

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

Pros

"It enables us to delve deeper and identify the services and open ports on the system and visualize this information on a dashboard automatically."

"Nmap is free and should stay this way."

"The scanning procedure includes UDP ports which sets it apart from competitors."

"It is most efficient network scanner right now."

"It is a very user-friendly product."

"This was my first project, and Nmap was the best tool that I have used to date, and I recommend it to everyone."

"It helps us secure the network infrastructure."

"Nmap is easy to use; it's a command-line interface, and the output is quite good."

More Nmap pros

"The best feature is that it is very relatable, stable, and scalable."

"We can also observe whatever we want, and there are no limitations."

"OP5 Monitor is a great choice due to its being built on an open-source monitoring tool and provides ample opportunity for customization based on specific support requirements. It is also user-friendly and easy to manage with a wide range of plugins available for use. In comparison to other enterprise tools, such as Micro Focus, OP5 Monitor stands out for its features and cost-effectiveness, making it the best tool in the market. Customization is one of the key strengths of the tool and provides a lot of capabilities. Additionally, it is easy to find support and plugins for the tool through online resources."

"With limited hardware or a virtual machine, you can address a huge network, hundreds of thousands of elements that need to be monitored. Other commercial software is not on that level."

"The API makes it pretty easy to integrate with any system."

"Especially with the API, where I can use the data with many other systems, it's great."

"The monitoring in OP5 Monitor is very easy because we can directly use custom plugins; we can write custom scripts and use those scripts directly, it's very low cost, open, and the dashboards are easy to see."

"The best feature is that it is very relatable, stable, and scalable. The logger is a part of the software, but it's not the most important point of it."

More OP5 Monitor pros

Cons

"I would like something more user-friendly to use and export data to various software."

"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."

"There is room for improvement in the design, the GUI. It looks a bit odd. Maybe Nmap should improve it or add more widgets to make it more attractive, but the basic functionality is good and provides what we need."

"Nmap will be a little difficult for beginners because of the learning curve and the CLI-based system, but once you get the hang of it, it becomes very powerful."

"They should deliver Playtech's username and password."

"Nmap needs to improve its scanning speed."

"Customization is not very user-friendly in Nmap."

"There could be a specific option to check non-pingable endpoints for the product."

More Nmap cons

"We do not get performance reports properly."

"They need to improve the dashboard interface."

"We do not get performance reports properly, which needs improvement."

"They need to improve the dashboard interface."

"IT environments today are in constant flux. This is driven by the newer cloud technologies such as Kubernetes and Docker, etc. The whole Nagios-based monitoring system that OP5 is created on top of, is based on a host-service model. There is a need for a strategy on what to do with more dynamic environments. There is some cool stuff going on in that direction."

"The solution is useful for tweaking. However, there have been some negative experiences, such as limited report capabilities. The only report available is in PDF format, making it difficult for teams managing multiple servers to extract data in Excel format. The speaker recommends that the team improve the report capabilities to better serve users."

"OP5 Monitor could include application monitoring in addition to infrastructure monitoring. If application business transactions were monitored, it would be helpful."

"The user interface is not what we are used to these days, and should be improved."

More OP5 Monitor cons

Pricing and Cost Advice

"The solution is open source so it is free."

"Nmap is open source software, which suits us well because we are a manufacturing company and not an IT company, for example. If we were an IT company, we would probably need to pay for extra support or instead go for another software solution. But as it is, we don't have any need for high-end troubleshooting tools."

"The solution is free of cost, but there are specific services that we have to buy."

"The product's pricing is fine. The licensing options for Nmap include perpetual licenses and volume-based licenses. For perpetual licenses, once you purchase it, there's no need to invest in renewals. And for volume-based licenses, enterprise companies can use it multiple times based on the number of users or devices they need to scan. It's a pay-as-you-go model, similar to how you pay for what you use."

"It's an open-source solution. Commerically, only the support service is available."

"It's an open-source product, and I haven't seen any premiums. Options are available for those who purchase, but for my use case, everything I need is available in the community and forums."

"I am using the standard free version of Nmap."

"Nmap is an open-source and free product."

More Nmap pricing and cost advice

"OP5 has a very low price as a solution, compared to many other solutions out there."

"The cost of the license and support are separate. If you want platinum call support, it will cost more than a regular call. I did not opt for it, as it is an additional cost."

"It was not expensive. And because it's less demanding in terms of hardware, you don't have to pay for another SQL or other database license, and you can have a huge installation on one machine..."

See which vendors are best for you

Use our free recommendation engine to learn which Network Monitoring Software solutions are best for your needs.

See recommendations

894,738 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Construction Company

10%

Manufacturing Company

10%

Government

University

Manufacturing Company

12%

Financial Services Firm

12%

Government

11%

Healthcare Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	1
Large Enterprise	14

By reviewers
Company Size	Count
Small Business	2
Large Enterprise	5

Questions from the Community

What is your experience regarding pricing and costs for Nmap?

I am using the free version of Nmap.

See all answers

What is your primary use case for Nmap?

My main use case for Nmap is reconnaissance, so identifying open ports or running services and ultimately finding the security risks or vulnerabilities in a system. OS detection is the most importa...

See all answers

What advice do you have for others considering Nmap?

I think I should be learning more about the commands and how Nmap works so that it will be better for my career. I will do that. There is nothing else to add to it, except a huge thank you to the p...

See all answers

What is your experience regarding pricing and costs for OP5 Monitor?

The price for OP5 Monitor is fine, but we don't know the exact price because it was managed by us; the customer themselves bought it and gave it to us to monitor.

See all answers

What needs improvement with OP5 Monitor?

OP5 Monitor could include application monitoring in addition to infrastructure monitoring. If application business transactions were monitored, it would be helpful. For application-related issues, ...

See all answers

What is your primary use case for OP5 Monitor?

Our previous use case for OP5 Monitor was server monitoring.

See all answers

Comparisons

SolarWinds NPM vs Nmap

Compared 7% of the time

LiveNX vs Nmap

Compared 7% of the time

OpenNMS vs Nmap

Compared 7% of the time

Domotz Pro vs Nmap

Compared 7% of the time

vRealize Network Insight vs Nmap

Compared 6% of the time

More Nmap Competitors

Nagios Core vs OP5 Monitor

Compared 10% of the time

Zabbix vs OP5 Monitor

Compared 10% of the time

PRTG Network Monitor vs OP5 Monitor

Compared 7% of the time

Opsview vs OP5 Monitor

Compared 6% of the time

Splunk Observability Cloud vs OP5 Monitor

Compared 4% of the time

More OP5 Monitor Competitors

Product Reports

Buyer's Guide

Nmap

April 2026

Download Nmap product report

Buyer's Guide

OP5 Monitor

April 2026

Download OP5 Monitor product report

Overview

Nmap is a comprehensive tool for network reconnaissance and security evaluation, offering features like port scanning and OS detection. It assists in uncovering network configurations, essential for cybersecurity operations.

Designed for network discovery and auditing, Nmap is a highly adaptable tool vital for penetration testing and security analysis. Users utilize it to identify open ports and operating systems, conduct vulnerability assessments, and map networks. While its CLI offers flexibility, the absence of a graphical interface can be a hurdle for new users. Enhancements in scanning speed and the addition of network issue resolution features would increase its effectiveness. Industry use cases show its necessity in cybersecurity, where it aids in uncovering network devices, evaluating services, and assessing security postures.

What are the key features of Nmap?

Port Scanning: Identifies open ports within a network.
Service Detection: Discovers services running on network devices.
OS Detection: Determines operating systems to assess vulnerabilities.
Network Diagnostics: Provides insights for system auditing and performance evaluation.
Script Integration: Utilizes scripts for enhanced vulnerability scanning.

What benefits should users look for?

Network Visibility: Helps reveal detailed network configurations for efficient management.
Security Posture Assessment: Evaluates an organization's exposure to threats.
Flexible Tool Integration: Works with other tools, enhancing cybersecurity decision-making.

Nmap is indispensable in industries focused on cybersecurity and network management. It plays a significant role in telecommunications, finance, and IT sectors by enabling detailed network analysis, enhancing penetration testing, and facilitating compliance assessments. Robust integration capabilities make it a versatile choice for enterprises and security experts.

Nmap

OP5 Monitor delivers real-time IT infrastructure monitoring with extensive customization options through open-source plugins. Its intuitive interface and cost-effectiveness make it a preferred choice for efficient performance monitoring and task automation.

OP5 Monitor integrates seamlessly with systems, offering customizable dashboards and efficient performance tracking for networks, servers, applications, databases, and cloud environments. It supports LDAP and local user accounts, providing timely insights to prevent downtime. The documentation enhances integration ease, though its user interface could benefit from updates. Improved APIs, better report capabilities, and enhanced platform integration are needed. Effective in healthcare, maritime, and diverse sectors, it provides global deployments with tailored monitoring solutions.

What are the key features of OP5 Monitor?

Real-Time Monitoring: Tracks performance and alerts users immediately on anomalies.
Seamless Integration: Works effectively with existing systems and infrastructure.
Extensive Customization: Offers open-source plugins for personalized configurations.

What benefits or ROI should users consider in reviews for OP5 Monitor?

Cost-Effectiveness: Provides robust features at a competitive price.
User-Friendly Interface: Simplifies monitoring processes for administrators.
Efficiency in Performance Monitoring: Automates tasks and optimizes resource use.

In industries like healthcare, maritime, and others, OP5 Monitor automates tracking and alerts, easing manual checks to enhance quality. Its global deployments provide tailored monitoring for CPU, memory, and disk space, efficiently managing both on-premise and cloud environments for large-scale operations.

ITRS

Sample Customers

Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication

Svenska Spel, Carus, VGL, Tele2, Viking Line, Clas Ohlson, Vanderlande, Försäkringskassan

Buyer's Guide

Nmap vs. OP5 Monitor

April 2026

Free Report: Nmap vs. OP5 Monitor

Find out what your peers are saying about Nmap vs. OP5 Monitor and other solutions. Updated: April 2026.

DOWNLOAD NOW

894,738 professionals have used our research since 2012.

See our Nmap vs. OP5 Monitor report.

See our list of best Network Monitoring Software vendors.

We monitor all Network Monitoring Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.