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Graylog vs ManageEngine EventLog Analyzer 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 June 2025, in the Log Management category, the mindshare of Graylog is 6.7%, up from 5.9% compared to the previous year. The mindshare of ManageEngine EventLog Analyzer is 0.8%, down from 1.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 10.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management
 

Featured Reviews

Ivan Kokalovic - PeerSpot reviewer
Facilitates backend service monitoring with efficient log retrieval and API flexibility
Graylog is valuable because it bridges technical knowledge to non-technical teams, presenting complex backend processes in a simple timeline. It boosts the knowledge of sales and customer support teams by allowing them to see the backend operations without needing to read the code. Its API is flexible for visualization, and its powerful search engine efficiently handles large volumes of log data. Moreover, its stability, fast search capabilities, and compatibility with languages like ANSI SQL enhance its utility in IT infrastructure.
Md Abdul Hakim - PeerSpot reviewer
Efficient log management enhances activity monitoring despite VPN user issue
Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users. When a VPN user logs in, it doesn't really capture the time before this. If you're testing with existing or new device integration, then the product will be good in the market.
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.

Quotes from Members

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

Pros

"We run a containerized microservices environment. Being able to set up streams and search for errors and anomalies across hundreds of containers is why a log aggregation platform like Graylog is valuable to us."
"The ability to write custom alerts is key to information security and compliance."
"The solution's most valuable feature is its new interface."
"Open source and user friendly."
"Allowing us to set up alerts and integrate with platforms we already use, such as Slack and OpsGenie to alert users of these errors proactively, is also a very useful feature."
"Storing logs in Elasticsearch means log retrieval is extremely fast, and full text search is available by default."
"Graylog is valuable because it bridges technical knowledge to non-technical teams, presenting complex backend processes in a simple timeline."
"Message forwarding through the in-built module."
"The dashboard for administrators or assigned engineers can identify vulnerabilities, activities, infected systems, large files, or DDoS attacks."
"I have made use of technical support and am certainly very satisfied with them."
"The initial setup is straightforward"
"The most valuable features of ManageEngine EventLog Analyzer are the number of capabilities, file integration monitoring, web server log collection, and alert configuration."
"The log management has helped to improve my organization."
"The tool's reports show activities."
"The support system is very good."
"What I found most useful in ManageEngine EventLog Analyzer is its integration with other ManageEngine applications. It seamlessly integrates throughout the ManageEngine suite, and that's beneficial. I also like that the solution has chain management capabilities, it has a modular approach, and it's easy to reach the support team."
"There are lots of free learning materials on their website."
"The initial deployment was straightforward."
"The solution has proven to be quite stable."
"Splunk's visualizations make it easy for users to understand the data."
"We can extract the metrics we want on the dashboards. We are able to react to the incidents."
"The ability to rapidly diagnose problems in production and non-production, across hundreds of log files, is the most valuable feature."
"The solution helped reduce our alert volume."
"The incident review in Splunk Enterprise Security seems to be the most helpful feature."
 

Cons

"I would like to see a date and time in the Graylog Grok patterns so that I can save time when searching for a log. I like how the streams and the search query work, but adding a date and time will allow me to pull out a log in a milli-second."
"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."
"When it comes to configuring the processing pipeline, writing the rules can be very tedious, especially since the documentation isn't extensive on how the functions provided for these rules work."
"Lacks sufficient documentation."
"Graylog can improve the index rotation as it's quite a complex solution."
"When it comes to configuring the processing pipeline, writing the rules can be very tedious, especially since the documentation isn't extensive on how the functions provided for these rules work."
"I would like to see a default dashboard widget that shows the topology of the clusters defined for the graylog install."
"Since container orchestration systems are popular and Graylog fits the niche well, perhaps they could officially support running in docker containers on Kubernetes as a StatefulSet as a use case. That way, the declarative nature of Kubernetes config files would document their best case deployment scenario-"
"The solution is stable. However, there are limits. For example, we can do 2,500 Syslog events per second, but if we want to do more we have to install the distributor structure, and then we can expand how many events we can do. They could improve the stability."
"The solution should improve on its log capturing capabilities."
"I would like to see more detailed reports."
"What I'd like to see as an improvement to ManageEngine EventLog Analyzer is for it to be more AI-driven. Having more automation would also make the solution better."
"Support could improve to make the solution better."
"The first tier of customer service and support is not great."
"Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users."
"It may not be as easy to use as Splunk."
"Writing queries is a bit complicated sometimes."
"I think the tech support response time could be a bit better. Sometimes I need to wait more than 24 hours for a response to my tickets."
"Splunk could be improved by reducing the cost. The cost is one of the biggest challenges for us in keeping to our production requirements."
"The solution could improve by giving more email details."
"The Enterprise Security app could be improved. We have had trouble with it working from the first day."
"It needs more formatting control without having to be an admin."
"Its interface could be improved."
"On-premises scaling of the solution is a bit more limited than it is on the cloud."
 

Pricing and Cost Advice

"If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​"
"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 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."
"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."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"​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."
"ManageEngine EventLog Analyzer is expensive. Its licensing costs are annual."
"ManageEngine EventLog Analyzer is a low-cost solution. It costs approximately $1,000 per month per server for a perpetual license."
"We paid for the license of the solution and the deployment. The price of ManageEngine EventLog Analyzer is less expensive than other solutions."
"Licensing for ManageEngine EventLog Analyzer is paid yearly."
"There is a license required for these solutions. The customer can choose the license type, such as an annual license purchase or a perpetual license. If the customer wants maintenance they will have to pay annually."
"There is a yearly subscription for the solution."
"I remember Splunk being relatively affordable. Kibana was more reasonable, but you get more with Splunk. If I was suggesting something, I would probably suggest Splunk because it is better to pay a little bit more and get a lot more."
"The Splunk licensing is high."
"The solution is costly."
"I work on the technical side, so I don't know precise figures. However, I know that Splunk is a premium product, so it's somewhat costly. Still, you get a lot of unique features for the money."
"The Splunk Enterprise Security license is expensive."
"Our ROI is high."
"It is pretty straightforward and based on the sizing. If I compare it with other competitors, it makes sense."
"Splunk Enterprise Security is priced lower than competitors."
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Comparison Review

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Feb 26, 2015
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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
17%
Comms Service Provider
10%
Educational Organization
7%
Government
7%
Computer Software Company
19%
Government
9%
Manufacturing Company
8%
Healthcare Company
7%
Financial Services Firm
15%
Computer Software Company
15%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Graylog?
The product is scalable. The solution is stable.
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 th...
What needs improvement with Graylog?
An improvement I would suggest is in Graylog's user interface, such as allowing for font size adjustments. A potentia...
What do you like most about ManageEngine EventLog Analyzer?
The reporting features are noteworthy, as they provide templates that streamline the process of generating reports
What needs improvement with ManageEngine EventLog Analyzer?
Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users...
What is your primary use case for ManageEngine EventLog Analyzer?
I find this solution useful for IT devices as a live stream to work with Syshun, serving as both the router and the t...
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
EventLog Analyzer
No data available
 

Overview

 

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Moody National Bank, EnCircle, Goldleaf Financial Solutions, Inc, IBM, Ernst & Young, Micro Linear, Silverbeck-Rymer Solicitors, Provincial Court of British Columbia, Eleventh Judicial Circuit of Florida, OGILVY & MATHER, E! Entertainment, Tribune-Review Publishing Co.
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, Datadog and others in Log Management. Updated: May 2025.
857,162 professionals have used our research since 2012.