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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
85th
Average Rating
8.0
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Nmap
Ranking in Network Monitoring Software
9th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
22
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of NETSCOUT vSTREAM is 0.4%, up from 0.3% compared to the previous year. The mindshare of Nmap is 0.7%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nmap0.7%
NETSCOUT vSTREAM0.4%
Other98.9%
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.
MR
CEO at a tech services company with 11-50 employees
Improves network monitoring and offers insights into traffic, including VPNs
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. This feature is crucial for law enforcement agencies to monitor and analyze network connectivity effectively. It also has traffic analysis. For example, assessing bandwidth usage and configuring the tool to track specific types of traffic is crucial. Unlike SolarWinds, which requires configuration for this, Nmap has built-in functionality that allows it to check all 4,000 computer ports. It identifies the type of traffic each port is using and can easily generate reports on network communications between computers, whether there are 100 or 1000 in the network.

Quotes from Members

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

Pros

"vSTREAM gives us better visibility and reporting about our network infrastructure, allowing for cost-optimization."
"One of the valuable features is the packet decoding."
"The best feature of Nmap is that it lets me see useful information about each endpoint in my entire network environment. For example, I can see every single connection of the network as well as each and every port."
"It helps us secure the network infrastructure."
"From a functionality standpoint, it's robust and straightforward to comprehend."
"Nmap's performance is great, and I've never noticed any issues in this respect. It really doesn't put a heavy load on the machine when using it."
"The most valuable feature of the solution for security audits stems from the fact that it serves as a powerful tool with the ability to scan a large number of ports."
"Nmap is easy to use. It's a command-line interface, and the output is quite good."
"It enables us to delve deeper and identify the services and open ports on the system and visualize this information on a dashboard automatically."
"It is a very user-friendly product."
 

Cons

"I would like for it to have a smaller footprint of the virtual appliance and better performance."
"I would like to see improvements made to the user guide."
"Room for improvement exists in filtering in the packet decode."
"The tool's license limits the number of scans it can perform. Improving the license model could benefit customers by allowing more scans for compliance and other purposes."
"Since I started using Nmap, it has been completely based on the command prompt and I think it would help other users if they implemented a decent GUI as well."
"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."
"There are concerns with the stability of the product, making it an area where improvements are required."
"The solution is not that easy for a beginner to learn."
"Customization is not very user-friendly in Nmap."
"Nmap needs to improve its scanning speed."
"The solution should increase the number of features under a free license."
 

Pricing and Cost Advice

"Licensing is quite expensive."
"I am using the standard free version of Nmap."
"Nmap is an open-source product. You don't need a license to install it."
"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."
"The solution is open source so it is free."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Energy/Utilities Company
14%
Government
11%
Computer Software Company
9%
Manufacturing Company
14%
Government
9%
University
9%
Retailer
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
Large Enterprise11
 

Questions from the Community

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What do you like most about Nmap?
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 sca...
What is your primary use case for Nmap?
Nmap is used for network scanning to map the network, identify devices, and assess their status. It helps determine open ports and services running on a particular endpoint or server within an ente...
 

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: December 2025.
881,176 professionals have used our research since 2012.