No more typing reviews! Try our Samantha, our new voice AI agent.

Graylog Enterprise vs LogRhythm SIEM vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

As of April 2026, in the Log Management category, the mindshare of Graylog Enterprise is 4.1%, down from 6.4% compared to the previous year. The mindshare of LogRhythm SIEM is 2.6%, up from 2.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 6.8%, down from 7.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security6.8%
Graylog Enterprise4.1%
LogRhythm SIEM2.6%
Other86.5%
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.
Sathis-Kumar - PeerSpot reviewer
Senior Manager at Bank of America
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.

Quotes from Members

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

Pros

"We're using the Community edition, but I know that it has really good dashboarding and alerts."
"The best feature of Graylog is the Elasticsearch integration; we can integrate and run filters, such as an event of interest, and those logs we can send to any SIEM tool or use as analytics, and there are clear and well-documented implementation instructions on their website to follow if needed."
"The centralized logs where one can find bugs quicker and find the line of code that is a problem has made us more efficient."
"Everything stands out as valuable, including the fact that I can quantify and qualify the logs, create pipelines and process the logs in any way I like, and create charts or data maps."
"It is easier to find some issues, and if I find some issues, then it is easier to resolve them."
"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."
"The product is scalable. The solution is stable."
"We have scaled from a single machine installation (a VM with a Graylog + ES + MongoDB) to (2 Graylog + 2 ES + 3 MongoDB). This was done smoothly with a minimal impact on logging."
"It makes it possible to stay aware of much more of what's going on; we get an overview, a macro view that we can zoom in on as opposed to prior to that when we had individual panes of glass and might be stuck in the firewall interface for half a day while something going on is not getting addressed that we really should probably investigate."
"LogRhythm was really the first major product that we bought and the installation was awesome; it went as expected, moved along quickly, and provided value as soon as we were done with the installation."
"The correlation engine is extremely valuable because it uses machine learning to process information from the central manager and identifies issues in the network."
"We have been able to stop ransomware by being alerted through LogRhythm."
"In terms of managing workflows and cybersecurity exposure, LogRhythm SIEM is very efficient and is a good tool to use for locating and auditing any sort of activity that goes on in the network."
"The alarm functions have helped us cut down on the manual work. They bubble things up to us instead of our having to go look for stuff. Also, from an operational perspective, day to day, the Case Management functions are really useful for us. They allow us to track what we see in the incidents that we have."
"The most valuable features would be the automation, reporting, and the support."
"The LogRhythm AIE (Advanced Intelligence Engine) is very good at alerting my SOC to events of interest and potential security issues without flooding my team with noise."
"It provides logs in one place, so they are easy to find. It collects the logs from multiple places, then you have just one place where you see the whole flow from the front-end to the back-end."
"It is stable, very powerful, and their support is good."
"I would assess the stability and reliability of Splunk Enterprise Security as good, as I have not had any issues with it."
"It has a rapid response search environment in the event of an incident."
"Easy to deploy and simple to use."
"Splunk can deliver more information by going deeper. By creating a dashboard, we can identify the root cause of the threat. Let's say I have a firewall from Check Point. Splunk will find the dashboard for Check Point, implement it in our environment, and connect it to the Check Point firewall logs, which are shown on the dashboard. If we request a custom dashboard, the engineer will take longer to complete the task."
"The ability to manipulate data in Splunk is unparalleled."
"Splunk has a wide range of features that customers use to find and analyze all kinds of logs."
 

Cons

"Graylog can improve the index rotation as it's quite a complex solution."
"There are many other applications in the market that influenced my rating reduction."
"More complex visualizations and the ability to execute custom Elasticsearch queries would be great."
"The documentation for Graylog Enterprise can be improved, as this has been a pain point."
"More customization is always useful."
"The alerting system could be more flexible."
"Elasticsearch recommendations for tuning could be better. Graylog doesn't have direct support for running the system inside of Kubernetes, so it can be challenging to fill in the gaps and set up containers in a way that is both performant and stable."
"The area in Graylog that needs to be improved or enhanced would be the integrations."
"I would like to see APIs well-documented and public facing, so we can get to them all."
"There used to be the ability to create alarms based on message text that was included in LR Version 6.x that has been removed in LogRhythm 7.x, and on that, I would like to see it added back."
"I wouldn't give them a 10 out of 10 because there is definitely some room for improvement as far as in the GUI."
"Scalability has been a little tougher for us."
"There have been issues with the hardware which has resulted in the LRM going down a few times."
"Scalability is not great, at the moment."
"Just integration into our ticketing system, which we're using service now."
"LogRhythm NextGen SIEM could improve by adding more applications for the banking sector. There are not any custom applications at this time."
"One area Splunk Enterprise Security fails to improve is the pricing aspect; while the initial pricing seems fine, the licensing cost can skyrocket over time, creating trauma for organizations."
"Missing capability for audio/video and image processing."
"On-premises scaling of the solution is a bit more limited than it is on the cloud."
"The solution could improve by giving more email details."
"The main improvement needed in Splunk Enterprise Security is its system visibility after installation."
"The user interface is the main area for improvement."
"The price of the solution could be cheaper."
"It needs integration with a configuration management solution."
 

Pricing and Cost Advice

"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."
"There is an open source version and an enterprise version. I wouldn't recommend the enterprise version, but as an open source solution, it is solid and works really well."
"Having paid official support is wise for projects."
"I use the free version of Graylog."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"We're using the Community edition."
"It's an open-source solution that can be used free of charge."
"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."
"On a scale of one to ten, I'd rate the pricing of this solution as a seven - not too expensive but not cheap either. Regarding licensing costs, it varies depending on factors like being a partner or an end user, but there are no additional costs aside from standard licensing fees for the basic SIEM solution."
"We work with French-speaking African countries, and it costs more than the average SIEM solution. Also, the pricing isn't too flexible. AlienVault, Splunk, and IBM QRadar are more suitable for customers on a tight budget."
"In comparison to the competition, they are more affordable. This allows us to do more with less."
"It is a very cost-effective solution."
"The nice thing about LogRhythm is you can either use the agents, getting a certain number of agents with your license depending on how you want to go, and those agents do a lot of cool things, or you can use CIS Log host, then you have like an unlimited number of them."
"When it comes time to renew, they say, "This is what you are using. This is what we can do for you." So, they work with you on pricing."
"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 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."
"The variables and the flexibility that Splunk provides are helpful, especially in a hybrid and multi-cloud environment."
"The price of this solution is expensive. However, it has great features. If you want a great solution you need to pay a price matching the features."
"We had a yearly subscription."
"Further reductions would be fantastic, and I believe that more and more people would flock to it."
"Regarding the product's pricing, I think it has always been difficult to have a conversation with Splunk."
"The pricing can be better. We are already considering Elastic because Splunk is too expensive. You have to pay based on per-day ingestion. There should be a more flexible model for the use cases where one day you have a huge amount, and on other days, it is quite less."
"The price of Splunk is too high for our market."
"The price of Splunk is reasonable."
report
Use our free recommendation engine to learn which Log Management solutions are best for your needs.
885,789 professionals have used our research since 2012.
 

Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Computer Software Company
13%
Comms Service Provider
11%
University
8%
Government
8%
Financial Services Firm
9%
Computer Software Company
9%
Construction Company
8%
Comms Service Provider
7%
Financial Services Firm
14%
Computer Software Company
9%
Manufacturing Company
9%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise5
Large Enterprise10
By reviewers
Company SizeCount
Small Business39
Midsize Enterprise38
Large Enterprise83
By reviewers
Company SizeCount
Small Business112
Midsize Enterprise50
Large Enterprise267
 

Questions from the Community

What is your experience regarding pricing and costs for Graylog?
I am not sure about the pricing, setup cost, and licensing because that was dealt with by a different team that handl...
What needs improvement with Graylog?
The documentation for Graylog Enterprise can be improved, as this has been a pain point. I think the visualization as...
What is your primary use case for Graylog?
I remember using Graylog Enterprise in the past at a software house where we used it for logging. During that time, w...
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 you...
What needs improvement with LogRhythm NextGen SIEM?
LogRhythm SIEM could learn from Wazuh, as Wazuh has a built-in mechanism that allows you to write custom scripting an...
What do you like most about LogRhythm SIEM?
I find LogRhythm's log management capabilities to be beneficial.
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is a...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingest...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitor...
 

Also Known As

Graylog2
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
No data available
 

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
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Wazuh, Splunk, Cribl and others in Log Management. Updated: March 2026.
885,789 professionals have used our research since 2012.