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NETSCOUT vSTREAM vs Nmap 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

NETSCOUT vSTREAM
Ranking in Network Monitoring Software
86th
Average Rating
8.0
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Nmap
Ranking in Network Monitoring Software
24th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
23
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Network Monitoring Software category, the mindshare of NETSCOUT vSTREAM is 0.5%, up from 0.2% compared to the previous year. The mindshare of Nmap is 1.1%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nmap1.1%
NETSCOUT vSTREAM0.5%
Other98.4%
Network Monitoring Software
 

Featured Reviews

KL
Network Engineer at Inniti Network Solution
A user-friendly solution that is easy to install and improves visibility
I would like to see improvements made to the user guide. From my personal experience, it is helpful to see a list of steps describing what to do next in different situations. An example is what to do and what to back up in the case of certain types of failure. There are also cases where a customer can't understand specific features. Enhancements to the user guide would be helpful for this. More features for network fragmentation would be helpful.
Sai Aditya Panda - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"One of the valuable features is the packet decoding."
"The generation of KPI-like information that feeds to the nGeniusONE (management) server is the most valuable feature."
"Sometimes it took a month to troubleshoot something that we can now do within days."
"vSTREAM gives us better visibility and reporting about our network infrastructure, allowing for cost-optimization."
"Nmap is mostly helpful during compliance checks. We run the scanner to see how many devices are on our network and find vulnerabilities in those that aren't compliant. We also use it monthly to scan our network and identify devices that aren't connected properly. This helps us detect any issues related to the operating systems of these devices."
"Nmap is free and should stay this way."
"We chose this solution because it supports several frameworks, including coding frameworks."
"The real-time reporting feature of Nmap is particularly valuable. It generates detailed reports on the source and destination IP addresses, the protocols used, and the types of traffic."
"The most important function, according to me, is the capability to use some arguments in the scanning. The solution's capability to go figure and do a deep dive, discovering information on specific aspects."
"It is a very user-friendly product."
"The scanning procedure includes UDP ports which sets it apart from competitors."
"It is most efficient network scanner right now."
 

Cons

"I would say that this is not a scalable solution."
"I would like to see improvements made to the user guide."
"The stability is okay, but sometimes we see that the memory on the server is not 100 percent correct and we need to stop and start the software to have it reallocated again."
"Room for improvement exists in filtering in the packet decode."
"I would like for it to have a smaller footprint of the virtual appliance and better performance."
"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."
"Customization is not very user-friendly in Nmap."
"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."
"Nmap needs to improve its scanning speed."
"There are concerns with the stability of the product, making it an area where improvements are required."
"The challenge often lies in finding suitable courses and professional resources."
 

Pricing and Cost Advice

"Licensing is quite expensive."
"Nmap is an open-source and free product."
"The solution is free of cost."
"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."
"It's an open-source solution. Commerically, only the support service is available."
"I am using the free version of Nmap."
"The solution is open source so it is free."
"Nmap is an open-source product. You don't need a license to install it."
"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."
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Top Industries

By visitors reading reviews
Construction Company
20%
Financial Services Firm
13%
Energy/Utilities Company
8%
Retailer
7%
Manufacturing Company
10%
Construction Company
10%
University
9%
Outsourcing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise1
Large Enterprise14
 

Questions from the Community

Ask a question
Earn 20 points
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...
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...
What needs improvement with Nmap?
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 r...
 

Comparisons

 

Also Known As

vSTREAM
No data available
 

Overview

 

Sample Customers

Metropolitan Police Agency, Banpara, PropertyRoom.com
Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication
Find out what your peers are saying about NETSCOUT vSTREAM vs. Nmap and other solutions. Updated: August 2026.
909,948 professionals have used our research since 2012.