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Nmap vs Opsview 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

Nmap
Ranking in Network Monitoring Software
10th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
22
Ranking in other categories
No ranking in other categories
Opsview
Ranking in Network Monitoring Software
77th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
24
Ranking in other categories
Server Monitoring (29th), IT Infrastructure Monitoring (53rd), Cloud Monitoring Software (41st)
 

Mindshare comparison

As of October 2025, in the Network Monitoring Software category, the mindshare of Nmap is 0.6%, up from 0.6% compared to the previous year. The mindshare of Opsview is 0.4%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nmap0.6%
Opsview0.4%
Other99.0%
Network Monitoring Software
 

Featured Reviews

AntoSebastin - PeerSpot reviewer
Scans the network and identifies vulnerabilities on each machine
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. The tool's most valuable feature is its vulnerability scanning. It allows us to scan a specific range of IP addresses and discover devices within that range. This makes it easy to identify devices and view their details. Port scanning is crucial for network management tasks. It helps us identify vulnerabilities by finding open ports that may be unused or misconfigured. This tool makes it easy to detect such issues. The OS detection feature is great. Unlike other tools, Nmap provides accurate information about asset vulnerabilities, helping us easily detect and address them. Using Nmap provides value to the company, especially during compliance audits. It helps generate reports on assets, updates on workstations, and insights into network activities and potential attacks. Additionally, Nmap detects vulnerabilities and provides port details, allowing us to close unused ports on the client machines.
Jeff Cronstrom - PeerSpot reviewer
A highly stable solution that can be used to monitor system availability
The most valuable feature of Opsview is the ability to clone the services when you're monitoring something out of the test setup. You can clone that service, and it allows you to add new services quickly. You can bring up new servers, and you can easily add them. Also, there's an API to be able to add services as well. We don't use the API. We mostly use the cloning function because it stores everything in a back-end database. The underlying monitoring platform for our version is Nagios. That's where we upgraded from Nagios to Opsview.

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."
"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."
"Nmap has a powerful command line tool and a set of diagnostic features."
"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."
"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 initial setup was simple."
"The solution detects the operating systems, which makes testing the software much easier before making the payload."
"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."
"It's a good solution. It covers all aspects of monitoring purposes."
"What was very compelling about OpsView was that we could dial out the noise and have meaningful and actionable alerts."
"I am satisfied with the overall product since it works well…It is a stable solution."
"The most valuable feature of Opsview is the ability to clone the services when you're monitoring something out of the test setup."
"We use this solution for internal monitoring our own cloud platform because we are a public cloud provider. We also use it for monitoring purposes on behalf of our clients."
 

Cons

"The challenge often lies in finding suitable courses and professional resources."
"The price is high and could be cheaper."
"Nmap needs to improve its scanning speed."
"There could be a specific option to check non-pingable endpoints for the product."
"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."
"It takes a bit of time to get familiar with the solution and its options."
"One of the drawbacks of the standard Nmap utility is that it does not come with a graphical user interface, unlike a number of other open-source alternatives such as Zenmap."
"Customization is not very user-friendly in Nmap."
"Maybe the graphical representation can be improved. It can be enhanced for better visualization. It could be a little better. And the graph center can be improved."
"Pricing and a few certain aspects in the solution needs to be improved."
"Some of the graphics on Opsview could be improved."
"Customized reporting can be improved."
"In a future release, we would like to have Observ for AI. Any AI and intelligence it can add to the monitoring is obviously beneficial. We would also like to have automated callouts."
 

Pricing and Cost Advice

"The solution is free of cost, but there are specific services that we have to buy."
"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."
"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 open source so it is free."
"Nmap is an open-source and free product."
"The solution is free of cost."
"I am using the free version of Nmap."
"I would rate pricing a seven out of ten, where ten is the highest price."
"The solution is priced similarly to other tools offering similar features."
"The solution is not cheap. I think that the pricing is a little bit on the high side."
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Top Industries

By visitors reading reviews
Manufacturing Company
14%
Computer Software Company
10%
Retailer
10%
Educational Organization
9%
Computer Software Company
19%
Manufacturing Company
9%
Performing Arts
7%
Financial Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
Large Enterprise11
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise5
Large Enterprise9
 

Questions from the Community

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...
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Comparisons

 

Also Known As

No data available
Opsview Monitor, Opsview Enterprise
 

Overview

 

Sample Customers

Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication
IBM, BT, Cisco, Sky, UPS, Capgemini, Visolit, Fujitsu Services UK, UKCloud, Massachusetts Insitute of Technology, Cornell University, Incomm
Find out what your peers are saying about Nmap vs. Opsview and other solutions. Updated: September 2025.
869,771 professionals have used our research since 2012.