The ability to scan networks with different protocols and have the ability to define exactly how the scan will operate.
Chief Technology Officer at a comms service provider
An excellent, free tool which allows it’s users a multitude of solutions to scan a network
Pros and Cons
- "It’s an excellent tool and allows its users a multitude of solutions to scan a network."
What is most valuable?
How has it helped my organization?
Nmap is a basic tool, one that I am sure is in all engineer's toolkit, as it can scan for a multitude of systems and devices, and even can scan for vulnerabilities in our systems or in customer systems.
What needs improvement?
GUI always seems to be the direction everything is moving towards. I prefer the CLI.
For how long have I used the solution?
For about 12 years.
Buyer's Guide
Nmap
June 2026
Learn what your peers think about Nmap. Get advice and tips from experienced pros sharing their opinions. Updated: June 2026.
900,644 professionals have used our research since 2012.
What do I think about the stability of the solution?
Not really.
What do I think about the scalability of the solution?
No.
How are customer service and support?
I have never tried to use the technical support, because there are plenty of examples that one can find on how to use it on the internet.
Which solution did I use previously and why did I switch?
I was using a SolarWinds product before I found Nmap.
How was the initial setup?
Very simple installation.
What's my experience with pricing, setup cost, and licensing?
It's free.
Which other solutions did I evaluate?
Not really, it’s free.
What other advice do I have?
It’s an excellent tool and allows it’s users a multitude of solutions to scan a network.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Information Security Professional at a tech services company with 1,001-5,000 employees
A powerful network scanning tool capable of identifying hosts and services, though its initial complexity can be a challenge
Pros and Cons
- "It enables us to delve deeper and identify the services and open ports on the system and visualize this information on a dashboard automatically."
- "The challenge often lies in finding suitable courses and professional resources."
What is our primary use case?
We use it to obtain information about the target entity, such as its services, open ports, and potentially even its operating system.
What is most valuable?
It enables us to delve deeper and identify the services and open ports on the system and visualize this information on a dashboard automatically.
What needs improvement?
The challenge often lies in finding suitable courses and professional resources. While a wealth of training materials and documentation is available online, it can be difficult to locate professional training that imparts real-world usage insights for a product.
For how long have I used the solution?
I have been working with it for thirteen years.
What do I think about the stability of the solution?
I would rate its stability features ten out of ten.
What do I think about the scalability of the solution?
I would rate its scalability features seven out of ten.
How was the initial setup?
The initial setup is straightforward.
What other advice do I have?
Overall, I would rate it seven out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
Nmap
June 2026
Learn what your peers think about Nmap. Get advice and tips from experienced pros sharing their opinions. Updated: June 2026.
900,644 professionals have used our research since 2012.
Chief Security Officer at a tech services company with 11-50 employees
Efficient command line tool and valuable diagnostic features
Pros and Cons
- "Nmap has a powerful command line tool and a set of diagnostic features."
- "There could be a specific option to check non-pingable endpoints for the product."
What is our primary use case?
Nmap works as a basic diagnostic and security tool. It helps us discover open ports and check connectivity.
What is most valuable?
Nmap has a powerful command line tool and a set of diagnostic features. It enables us to check connectivity and discover open ports.
What needs improvement?
There could be a specific option to check non-pingable endpoints for the product.
What do I think about the stability of the solution?
We never encountered any system downtime.
What do I think about the scalability of the solution?
We have five Nmap users in our organization. We can scan large networks and control speed as well. Thus, it has good features for scalability.
How are customer service and support?
I referred to support documentation and forums to resolve the technical issues.
How was the initial setup?
It is a command line tool. Thus, we have to install and run it.
Which other solutions did I evaluate?
I am exploring a lot of products. However, I am still looking for an alternative for this particular tool.
What other advice do I have?
It is a great and simple tool. I rate it a nine out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Buyer's Guide
Download our free Nmap Report and get advice and tips from experienced pros
sharing their opinions.
Updated: June 2026
Product Categories
Network Monitoring SoftwarePopular Comparisons
Zabbix
SolarWinds NPM
PRTG Network Monitor
Nagios XI
Auvik Network Management (ANM)
SCOM
Cisco Secure Network Analytics
Nagios Core
LibreNMS
ITRS Geneos
Zenoss Cloud
Pandora FMS
LiveNX
vRealize Network Insight
OpenNMS
Buyer's Guide
Download our free Nmap Report and get advice and tips from experienced pros
sharing their opinions.
Quick Links
Learn More: Questions:
- When evaluating Network Performance Monitoring, what aspect do you think is the most important to look for?
- What is the best network monitoring software for large enterprises?
- What Questions Should I Ask Before Buying a Network Monitoring Tool?
- UIM OnPrem - SaaS
- Anyone switching from SolarWinds NPM? What is a good alternative and why?
- What is the best tool for SQL monitoring in a large enterprise?
- What tool do you recommend using for VoIP monitoring for a mid-sized enterprise?
- Should we choose Nagios or PRTG?
- Which is the best network monitoring tool: Zabbix or Solarwinds? Pros and Cons?
- What software solution would you recommend to monitor user machines?















