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Corelight Open NDR vs Flowmon comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 22, 2026

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

Corelight Open NDR
Ranking in Network Detection and Response (NDR)
7th
Average Rating
8.8
Reviews Sentiment
7.6
Number of Reviews
7
Ranking in other categories
Network Traffic Analysis (NTA) (3rd)
Flowmon
Ranking in Network Detection and Response (NDR)
14th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Network Detection and Response (NDR) category, the mindshare of Corelight Open NDR is 4.9%, down from 5.5% compared to the previous year. The mindshare of Flowmon is 2.1%, up from 1.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Detection and Response (NDR) Mindshare Distribution
ProductMindshare (%)
Corelight Open NDR4.9%
Flowmon2.1%
Other93.0%
Network Detection and Response (NDR)
 

Featured Reviews

reviewer2834367 - PeerSpot reviewer
Growth And Strategy Lead at a computer software company with 51-200 employees
Network visibility has transformed how we detect nation state threats and protect critical industry
Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale. However, I think with a lot of the artificial intelligence that they are building in, it is getting a lot easier to query in the platform. I would definitely encourage them to continue down that path where anybody can hop into the platform and start running queries, whether it is a simple instruction like I want this, and an artificial intelligence process can actually build the query and do it. I think that would be super powerful. Cyber skill sets are in high demand, and there is a huge backlog in cyber talent. We cannot fill all the positions we need. The easier we can make these cyber systems for people to pick up and be effective on, I think is really key. Explainability of data is hyper important. In the past few artificial intelligence related updates we have gotten from Corelight, that has been one of the first questions our team has asked every time or that I have asked: show me what the model is doing, show me how it came to this analysis. Within Investigator platform, they are able to walk through and see exactly what data the artificial intelligence pulled from where and why it did what it did as far as making its suggestions. They have definitely built their system with artificial intelligence in mind up front, and having that openness as one of the key features of any of their artificial intelligence and machine learning processes in the platform is important. The issue with black boxes is obviously hallucinations from artificial intelligence and just not being able to trace to ground truth. When we are talking about these cyber incidents and being able to do forensics, you need to be able to pinpoint and tie everything together, and black boxes really obscure that and prevent you from doing so. Corelight has done a really good job of making sure that everything is explainable and everything is mapped when it comes to leveraging any of their artificial intelligence features.
Pifu Lin - PeerSpot reviewer
Senior System Engineer at DYNASAFE TECHNOLOGIES PTE. LTD.
Quick identification of network issues enhances performance monitoring
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM) Flowmon is more easy to understand and helps find network issues more quickly. We need this solution to monitor the network performance. We started using it three…

Quotes from Members

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

Pros

"It is easy to deploy and easy to handle."
"Corelight is easy to use."
"Technical support seems to be good."
"It's easy to create additional dashboards specific to supporting specific tasks."
"Corelight makes much easier the remediation of cyber attacks; instead of facing a chaotic amount of logs, Corelight provides correlated metrics that allow pivoting to find, in seconds, all the data related to an alert, detection, or asset."
"The most valuable feature is the embedded IDS from Suricata."
"Our company has seen massive improvements in cybersecurity position for our clients."
"Corelight Open NDR has had a positive impact on my company, providing visibility as the Suricata engine can scan huge volumes of traffic, including north-south and east-west, revealing signatures and exposures I was not expecting and enabling me to catch them with Suricata alerts."
"The solution is stable."
"If people or users are complaining that the network is slow, Flowmon can easily detect the cause of the network problem."
"The solution is both stable and scalable and we are happy with the product."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every type of customer, such as government and commerce."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every, type of customer, such as government and commerce."
"It is an open platform, so in terms of integration, we are quite happy. We can integrate it with other SNMP solutions. We can also integrate it with security solutions, such as a SIEM solution."
"Flowmon is more easy to understand and helps find network issues more quickly."
"Flowmon is more easy to understand and helps find network issues more quickly."
 

Cons

"In the next release, building a graphical user interface would be helpful."
"Machine learning could be a good improvement, but it's very costly."
"The solution’s architecture is complex and difficult to understand. There are multiple machines and VMs."
"Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale."
"They can enhance the interface of the product. They can make it more interactive and also easier to use for feature access."
"Corelight hasn’t added features in a long time."
"Machine learning could be a good improvement, but it's very costly."
"It's an expensive solution and the price could be reduced."
"It would be helpful to have more details about the monitoring of the infrastructure. It should have support for SNMP."
"The licensing price could be better."
"If there was better visualization in Flowmon Solution it would be good."
"The price of the license could be lower."
"It would be helpful to have more details about the monitoring of the infrastructure. It should have support for SNMP. This is something that is currently not there in the product."
"If there was better visualization in Flowmon Solution it would be good."
"I do not know the detailed pricing."
 

Pricing and Cost Advice

"It's a yearly fee and depends on what you are looking for."
"The licensing fee accrues only once, but that of support is annual."
"It works with a permanent license, and then you can pay for the support. For the gold support, you need to pay yearly."
"The price of the solution could be better."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Government
12%
Computer Software Company
9%
Real Estate/Law Firm
9%
Manufacturing Company
12%
Financial Services Firm
11%
Computer Software Company
9%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
No data available
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for Flowmon Anomaly Detection System?
I don't understand the price. I am in deployment, so I do not know the detailed pricing.
What is your primary use case for Flowmon Anomaly Detection System?
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM).
 

Comparisons

 

Also Known As

Corelight Open NDR
Flowmon Anomaly Detection System
 

Overview

 

Sample Customers

CarrefourEdnonGrand Canyon EducationSektorCERTTietoevryVolkswagen Financial Services
SEGA
Find out what your peers are saying about Corelight Open NDR vs. Flowmon and other solutions. Updated: April 2026.
892,487 professionals have used our research since 2012.