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Graylog Enterprise vs LogRhythm SIEM comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 14, 2025

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

Graylog Enterprise
Ranking in Log Management
9th
Average Rating
8.0
Reviews Sentiment
5.4
Number of Reviews
24
Ranking in other categories
No ranking in other categories
LogRhythm SIEM
Ranking in Log Management
13th
Average Rating
8.4
Reviews Sentiment
6.4
Number of Reviews
175
Ranking in other categories
Security Information and Event Management (SIEM) (9th)
 

Mindshare comparison

As of January 2026, in the Log Management category, the mindshare of Graylog Enterprise is 5.0%, down from 6.2% compared to the previous year. The mindshare of LogRhythm SIEM is 2.4%, up from 2.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Graylog Enterprise5.0%
LogRhythm SIEM2.4%
Other92.6%
Log Management
 

Featured Reviews

NC
Security Officer at JSC "Moldtelecom" S.A.
Log analysis has become clearer and faster but visualization and extensibility still need work
The problem was with the complexity and the cost to add extensions. We found this very expensive to buy another version with additional features. I think that Graylog Enterprise does not have customizable dashboards. I did not see them in Graylog Enterprise because most of the time we used the open source free version, which is limited. I think Graylog Enterprise should improve some things that they have in the paid version and perhaps provide users with a menu that gives examples of parsing logs and draws graphics so that people do not need to improve another system such as Grafana. This would be interesting. When it comes to functionalities, I found the log management in Graylog Enterprise acceptable. It is very simple to use and to collect logs. It has support for different protocols and different ports, and the sidecar is easy to use. However, in visualization, I think it needs to be much better.
SV
Cyber Security Engineer at Diyar United Company
Provides strong detection capabilities but requires improvements in parsing and stability
I cannot think of any specific features that LogRhythm SIEM can improve upon since it supports a wide variety of major vendors. However, they need to improve their parsing techniques; the tool should understand various devices and present data in a human-readable format. For example, if a personal Android mobile needs to be integrated, LogRhythm SIEM should be able to parse that data effectively. They also need to improve their database of supported devices to cover smaller vendors alongside the major players, allowing for better global reach and usability. I have noticed some problems with parsing errors, event mismatches, and data mismatching, so ensuring accurate parsing and continuous improvement according to device updates are my basic expectations as a detection engineer.

Quotes from Members

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

Pros

"It is used as a log manager/SIEM. It provides visibility into the infrastructure and security related events."
"The Graylog features that have proven to be most beneficial for our data analysis in particular are that we tend to use it as a big data store, so we have the correlation rules that, if something matches under certain conditions, it raises an alarm."
"One of the most valuable features is that you are able to do a very detailed search through the log messages in the overview."
"Graylog is very handy."
"This had increased productivity for the dev and support teams, because we are directly notifying them."
"I like the correlation and the alerting."
"What I like about Graylog is that it's real-time and you have access to the raw data. So, you ingest it, and you have access to every message and every data item you ingest. You can then build analytics on top of that. You can look at the raw data, and you can do some volumetric estimations, such as how big traffic you have, how many messages of data of a type you have, etc."
"Open source and user friendly."
"It's positively affected our overall rate of efficiency."
"Provides visibility into the network."
"The correlation engine is extremely valuable because it uses machine learning to process information from the central manager and identifies issues in the network."
"I find LogRhythm's log management capabilities to be beneficial."
"We raise a ticket to LogRhythm, and they will give us their support."
"It allows us to automate a lot of things with a smaller team."
"I would say the most valuable feature of LogRhythm is that it has built-in UEBA functionality, among other basic Windows packages."
"What I found most valuable in LogRhythm NextGen SIEM is that it's user-friendly. I also like its dashboard, which shows all the logs and information I want to see."
 

Cons

"With technical support, you are on your own without an enterprise license."
"There are many other applications in the market that influenced my rating reduction."
"We ran into problems with Elasticsearch throwing a circuit-breaking exception due to field data size being too large. It turned out that the heap size directly impacted this size in a high-throughput environment, causing unexplained instability in Graylog. We were able to troubleshoot on the Elasticsearch size, but we should have been able to reference some minimum requirements for Graylog to know that our settings weren't sufficient."
"Lacks sufficient documentation."
"Graylog could improve the process of creating rules. We have to create them manually by doing parses and applying them. Other SIEM solutions have basic rules and you can create and get more events of interest."
"I would like to see some kind of visualization included in Graylog."
"The problem was with the complexity and the cost to add extensions."
"It would be great if Graylog could provide a better Python package in order to make it easier to use for the Python community."
"The solution is likely not the best option for a smaller organization."
"More help and assistance with some of the open source products, everything seems to be focused on Windows versus giving some guidance and some documentation on how to use it."
"Appliance-based setups can sometimes pose scalability issues"
"I would really love to be able to take some of the data and not have to export it to a CSV file, so I can pull it into Excel to turn it into some other kind of graph."
"It's not easy for someone new to the solution."
"Sometimes the error-logging is not altogether helpful. For example, on an upgrade, a systems data processor, a Windows box, was throwing an error code like 1083. Then it just stopped and it died right out of the installer and nobody looked. We searched through Google and what it means is the Windows Firewall wasn't turned on so that it could create a rule for the product. Why wouldn't they bubble up that description so that I wouldn't have to call support and I could just know, "Okay, the firewall wasn't turned on. Turn it back on. Re-run the installer and keep going.""
"The log storage capacity should be increased."
"More detail in the alerts given to avoid additional searches, as often the source or destination associated with the alert is not evidenced."
 

Pricing and Cost Advice

"Graylog is a free open-source solution. The free version has a capacity limitation of 2 GB daily, if you want to go above this you have to purchase a license."
"It's an open-source solution that can be used free of charge."
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"It's open source and free. They have a paid version, but we never looked into that because we never needed the features of the paid version."
"We're using the Community edition."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"Having paid official support is wise for projects."
"I use the free version of Graylog."
"LogRhythm's pricing and licensing is extremely competitive and it's one of the top three reasons we continue to invest in the platform."
"Look closely at the cost of licensing of other products. This should include setups and the need for support services. I did a RFQ to 2 other vendors before choosing this product."
"The setup and licensing for small and medium size businesses is straightforward, though when it comes to the enterprise it pays to keep in mind the possibility for complications given all the extras and add-ons that may be required."
"I would recommend that whatever sales quotes to them upfront, they will probably go up. Because they are probably going to outgrow that very quickly or once they start getting everything into it, they are going to have to move up anyway."
"I have seen a measurable decrease in the mean time to detect and respond to threats. We went from not detecting them to detecting them. We can actually pick up what is anomalous in our network now."
"I think the tool is reasonably priced. There is a need to pay per year towards the licensing costs of the tool."
"NextGen SIEM's pricing is moderate."
"The product is inexpensive than other tools."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
University
8%
Government
8%
Computer Software Company
11%
Government
9%
Manufacturing Company
8%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise5
Large Enterprise9
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise38
Large Enterprise83
 

Questions from the Community

What is your experience regarding pricing and costs for Graylog?
I am not familiar with the pricing details of Graylog, as I was not responsible for that aspect. It was determined that we didn't need an enterprise plan, which is more suited for clients with less...
What needs improvement with Graylog?
I do not have any specific examples or numbers, such as time saved or incidents to share. Currently, I have no suggestions for how Graylog Enterprise can be improved, as there are no pain points or...
What is your primary use case for Graylog?
Graylog Enterprise is the logging and management tool we initially used, but later we stopped using it and switched to Loki, Grafana Loki for the logs. Eventually, we moved back to Graylog Enterpri...
What is the difference between log management and SIEM?
Rony, Daniel's answer is right on the money. There are many solutions for each in the market, a lot depends upon your ability to manage such tools and your budget. A small operation may be best s...
What needs improvement with LogRhythm NextGen SIEM?
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of...
What do you like most about LogRhythm SIEM?
I find LogRhythm's log management capabilities to be beneficial.
 

Also Known As

Graylog2
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
 

Overview

 

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
Find out what your peers are saying about Graylog Enterprise vs. LogRhythm SIEM and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.