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Graylog Enterprise vs IBM Security QRadar 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 IBM Security QRadar is 4.0%, up from 3.9% 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%
IBM Security QRadar4.0%
Graylog Enterprise4.1%
Other85.1%
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.
HarshBhardiya - PeerSpot reviewer
SOC Engineer at a outsourcing company with 10,001+ employees
Have managed daily asset and alert monitoring effectively but have encountered limitations with manual processes and interface usability
It's still very manual and doesn't work on its own. It's still in an early stage and not on par where we can consider it a really successful detection system. The accuracy is not there. The UI could be better when compared to Sentinels where we can use flags and tagging. It could be much more user-friendly. IBM Security QRadar has all features and is fully competitive with other SIEM tools, but when it comes to user-friendliness, a new user takes time to get used to it. More intuitive, user-friendly interfaces and more helpful documentation would be beneficial. The query searching and data fetching could be faster. In large to very large organizations with around 5,000 or 6,000 assets or beyond, even with proper configurations and RAM and hardware backing up, the query is fairly slow.
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

"The build is stable and requires little maintenance, even compared to some extremely expensive products."
"The solution's most valuable feature is its new interface."
"I like the correlation and the alerting."
"Graylog Enterprise has positively impacted my organization by significantly minimizing our workload and making it easier to identify any issues in a service."
"Feature-wise or from the end user perspective, Graylog is just great."
"The build is stable and requires little maintenance, even compared to some extremely expensive products."
"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."
"Real-time UDP/GELF logging and full text-based searching."
"Providing real-time visibility for threat detection and prioritization - QRadar SIEM provides contextual and actionable surveillance across the entire IT infrastructure."
"The best part of this solution is having a third-party SOC."
"It helps because you don't need an army to execute the project when you do the PoC, and when finally going to production."
"It provides many options for searching. I can see devices from different vendors, like Cisco, in one interface, which is good for me."
"I would recommend the solution to others."
"IBM QRadar has improved my organization by introducing many functions; it collects logs from all of our systems in the organization and has functioned very well, alerting and correlating the aggregate events or offenses we receive through all the applications we use."
"It is very flexible and not at all tough for a startup engineer to click and bring solutions inside."
"IBM QRadar is great help from its security event monitoring to data center and NOC troubleshooting of issues hard for other departments to spot."
"The connections to the database are very good and updating the data files is simple to do. The dashboards are useful and user-friendly."
"It allows the centralization of data and makes possible new sorts of correlations that were previously impossible using traditional SIEMs such as ArcSight or QRadar."
"The most valuable features for us include its robust log management capabilities, which allow us to efficiently handle and retain logs for extended periods as needed."
"The features of Splunk Enterprise Security that I appreciate the most are its flexibility and scalability."
"The main advantage of the solution is that it provides an easy setup platform in the new environment."
"The user interface is excellent, and since I'm using Splunk as a power user, it's easy to create dashboards."
"Its dashboard is valuable. If you have a good knowledge of how to create a dashboard, you can create any dashboard related to cybersecurity. If fine-tuned, the alarms that are triggered for instant review are also very valuable and useful."
"This solution is excellent from a performance and stability perspective."
 

Cons

"Graylog could improve the process of creating rules. We have to create them manually by doing parses and applying them."
"I wouldn't recommend the enterprise version, but as an open source solution, it is solid and works really well."
"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."
"The biggest problem is the collector application, as we wanted to avoid using Graylog Collector Sidecar due to its architecture."
"There should be some user groups and an auto sign-in feature."
"The area in Graylog that needs to be improved or enhanced would be the integrations."
"For Python developers, it would be great if Graylog could provide a better Python package in order to make it easier to use for the Python community."
"I would like to see some kind of visualization included in Graylog."
"I would like to see a better GUI."
"The released patch quality is poor. IBM should test those patches on their side, not on the client's side."
"The implementation and configuration are not easy."
"Technical support is good, but not great."
"QRadar needs to be more specialized, along the lines of what other SIEM solutions are."
"Technical support is not that strong from IBM. It definitely does not compare to any standard support organization."
"Although QRadar provides incident management of the alerts it produces, this area could use a little improvement to allow more restrictions on who can close alerts and easily updating alerts with and reading text templates."
"I think they could change their pricing model to be more cost effective."
"Overall, I don't think that this is a very good product and I don't recommend it."
"Better directions on search head clusters. A lot of the documentation that I saw was either old or out of date."
"We find that the maintenance process could be a lot better."
"Free-floating panels in the dashboards are like a glass table."
"An improved user interface along with multi-tenancy support would be beneficial."
"We'd like to have the number of devices covered under the license to be increased."
"The solution could be more user friendly and it's difficult to know at this stage whether our requirements will be met by the solution."
"The biggest problem is data compression. Splunk is an outstanding product, but it is a resource hog. There should be better data compression for being able to maintain our data repositories. We end up having to buy lots of additional storage just to house our Splunk data. This is my only complaint about it."
 

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."
"If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​"
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"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."
"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."
"IBM has subscriptions plans that run for one year."
"The solution's pricing is based on the EPS model."
"The tool's price is high."
"It is a perpetual license that we have for the event collector. The licensing is done based on the number of events and flows that you receive on this particular device. These are perpetual licenses, which means once you purchase them, they don't expire, which means that the support to IBM is definitely renewed after every one year. We have an enterprise agreement with IBM, which puts the cost in a totally different category as compared to someone who is not an IBM partner and is approaching IBM for this solution. We were able to get massive discounts. To give you an idea, we recently purchased 30,000 event licenses, and it costs around $480,000. It is definitely not a cheap product. We have licenses for about 270,000 events per second and 3 million flows per second. All the appliances and their events and flows are basically clubbed together and charged or rather calculated through a single source. The console receives all the details from all the event processes that we have globally. So, the license that we have is a single license for 270,000 events per second and 3 million flows per second, but that can be managed centrally. I was only part of the secondary purchase, which was 30,000 events per second for about $480,000. You can calculate how much we paid for 270,000 events. Reducing its price would be a compromise. We have already used a lower-priced product in the form of NNT, but we had to get rid of it because it was not doing the job that we actually wanted to do. You get what you pay for."
"There is a license required for this solution. There are some limitations depending on what license you purchase."
"It is very expensive."
"There is an annual license required for this solution."
"The solution is costly and the price differs depending on the vendor you use."
"While Splunk is more expensive than other solutions, we would still choose it because of its capabilities."
"Splunk Enterprise Security is a worthwhile investment given the comprehensive range of features it offers."
"The licensing costs are high for Splunk Enterprise Security."
"Although Splunk is an expensive product, it is designed to be utilized across your organization in order to maximize your ROI and lower your TCO."
"I think that most of the monitoring solutions are expensive."
"I think we recently switched to the SVC pricing compared to the ingest pricing."
"It's a little bit expensive for a small to medium enterprise."
"The Splunk licensing is high."
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Jun 28, 2015
Qradar vs. ArcSight
Continuing with the SIEM posts we have done at Infosecnirvana, this post is a Head to head comparison of the two Industry leading SIEM products in the market – HP ArcSight and IBM QRadar Both the products have consistently been in the Gartner Leaders Quadrant. Both HP and IBM took over niche SIEM…
 

Top Industries

By visitors reading reviews
Computer Software Company
13%
Comms Service Provider
11%
University
8%
Government
8%
Computer Software Company
11%
Financial Services Firm
10%
Manufacturing Company
7%
Construction Company
6%
Financial Services Firm
12%
Computer Software Company
9%
Manufacturing Company
9%
Government
6%
 

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 Business91
Midsize Enterprise39
Large Enterprise105
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 are the biggest differences between Securonix UEBA, Exabeam, and IBM QRadar?
It mostly depends on your use-cases and environment. Exabeam and Securonix have a stronger UEBA feature set, friendli...
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 your experience regarding pricing and costs for IBM Security QRadar?
Pricing and the license of EPS were managed by the governance team. I was not responsible for managing those. I was s...
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...
What do you like most about Splunk?
There are a lot of third-party applications that can be installed.
 

Also Known As

Graylog2
IBM QRadar, QRadar SIEM, QRadar UBA, QRadar on Cloud, IBM QRadar Advisor with Watson
No data available
 

Overview

 

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
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.
885,444 professionals have used our research since 2012.