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Graylog Enterprise 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 August 2026, in the Log Management category, the mindshare of Graylog Enterprise is 2.5%, down from 6.4% compared to the previous year. The mindshare of ManageEngine EventLog Analyzer is 1.2%, up from 0.9% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.0%, down from 7.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security7.0%
Graylog Enterprise2.5%
ManageEngine EventLog Analyzer1.2%
Other89.3%
Log Management
 

Featured Reviews

Merit Ronald - PeerSpot reviewer
Senior Software Engineer at Absa Bank Uganda
Centralized log insights have reduced investigation time and improve security response
One improvement I want to see in Graylog Enterprise is artificial intelligence to help us automatically identify unusual patterns and suggest possible causes. I also want to see more ready-made dashboards and alert templates for common security use cases to help us gain value from the platform faster after deployment. Lastly, I want to see improvements in handling very large volumes of data, especially after searching, and a more user-friendly log management system, particularly in large environments. I give Graylog Enterprise a 9 out of 10 because it has a limitation of a steep learning curve for new users due to the many configuration options. It takes considerable time to become comfortable with creating searches, dashboards, and alerts. Additionally, in very large environments with large volumes of logs, it requires careful planning, and its data retention is quite limited.
Md Abdul Hakim - PeerSpot reviewer
System Engineer at Corporate Projukti Limited
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.
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

"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."
"I like the simplicity of the solution, the fact that it's open source and user friendly."
"With Graylog Enterprise, monitoring improved by up to 80 percent because of having all the logs centralized."
"I know that there are other similar tools available, but I enjoy using Graylog the most."
"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."
"The best feature of Graylog is the Elasticsearch integration. We can integrate and we can run filters, such as an event of interest, and those logs we can send to any SIEM tool or as an analytic. Additionally, there are clear and well-documented implementation instructions on their website to follow if needed."
"Open source and user friendly."
"While I cannot provide an exact number, Graylog Enterprise has reduced our investigation time by around 80%."
"The user interface is very good."
"We use the solution because it is granular."
"The initial setup is straightforward"
"The dashboard for administrators or assigned engineers can identify vulnerabilities, activities, infected systems, large files, or DDoS attacks."
"ManageEngine EventLog Analyzer was a lower-cost alternative, and it was easier to install and manage."
"The tool's reports show activities."
"The most valuable features of ManageEngine EventLog Analyzer are the number of capabilities, file integration monitoring, web server log collection, and alert configuration."
"Our primary use case for this solution is detecting issues to provide customers with information."
"The incident review in Splunk Enterprise Security seems to be the most helpful feature."
"The detailed log view is easy to read."
"Previously, it would take us days to properly analyze, triage, and respond to insider threats; now with risk-based alerting, we are able to reduce that to 10 minutes."
"It is lovely to have everything we need in one tool. Everything is quite centralized."
"The best advantage is that Splunk Enterprise Security helps our organization collect and analyze logs from multiple systems in one place, providing real-time monitoring, faster threat detection, and quick incident response and investigations that improve security visibility, reduce response times, and help our team make better decisions."
"The most valuable feature is the DSS, also known as SPL, because it allows users to script advanced queries with limited knowledge."
"Explore Splunk. The product has a lot of depth."
"The solution's most valuable feature is its data modeling."
 

Cons

"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 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."
"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."
"The alerting system could be more flexible."
"Lacks sufficient documentation."
"I give Graylog Enterprise a 9 out of 10 because it has a limitation of a steep learning curve for new users due to the many configuration options."
"Its scalability gets complicated when we have to update or edit multiple nodes."
"I would like to see some kind of visualization included in Graylog. The report is plain, they could be improved."
"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."
"The customization of reports could be a lot easier. It is not difficult but it could be made easier."
"The product does not have certain advantages, especially the correlation tools. It was not working as per our expectations."
"The scalability is limited."
"I would like to see more detailed reports."
"The first tier of customer service and support is not great, and additional upgrades could be included."
"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."
"Support could improve to make the solution better."
"It would be nice to have more advanced UEBA in Splunk Enterprise Security. Additionally, it would be beneficial if they offered more threat intel feeds for free."
"Splunk can be an expensive solution. Technical support could be improved as well."
"One issue is that we are getting a lot of false positives. We are trying to reduce them by customizing the default rules, changing thresholds, and using white-listing and black-listing. It's getting better and better as a result. But they need to build components that would reduce the false positives."
"One improvement I want to foresee is that the AI or agent needs to be fed with accurate data, not false data, so that whenever it performs automation on your behalf, it doesn't misconfigure anything."
"For us, the area that Splunk Enterprise Security can improve is performance optimization."
"Code understanding requirement is complicated for most users."
"Its user interface for everything other than the charts can be improved."
"An area of improvement would be the licensing of the solution. They need a free license, which would allow faster lead times."
 

Pricing and Cost Advice

"We're using the Community edition."
"Having paid official support is wise for projects."
"I use the free version of Graylog."
"It's an open-source solution that can be used free of charge."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"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.​​"
"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."
"ManageEngine EventLog Analyzer is expensive. Its licensing costs are annual."
"There is a yearly subscription for the solution."
"We paid for the license of the solution and the deployment. The price of ManageEngine EventLog Analyzer is less expensive than other solutions."
"ManageEngine EventLog Analyzer is a low-cost solution. It costs approximately $1,000 per month per server for a perpetual license."
"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."
"Splunk Enterprise Security incurs a significant cost because of the amount of data we send, but we are fine with the value we're getting for that price."
"My experience with the solution's setup cost, pricing, and licensing was really good."
"Splunk Enterprise Security is not at all cost-friendly to be deployed in very small enterprises like start-ups."
"Pricing can be a limiting factor. You have to continuously tune what you are bringing in and make sure what you bring in is of value."
"Splunk Enterprise Security is a worthwhile investment given the comprehensive range of features it offers."
"Splunk is priced higher than other solutions."
"Splunk is not a cheap solution and the license is billed annually."
"It is expensive. That is why many customers have moved to IBM QRadar. The price is definitely a challenge for customers."
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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
11%
Comms Service Provider
11%
University
8%
Financial Services Firm
7%
Computer Software Company
10%
Financial Services Firm
8%
Construction Company
7%
Comms Service Provider
7%
Financial Services Firm
12%
Outsourcing Company
9%
Manufacturing Company
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise5
Large Enterprise11
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise7
Large Enterprise3
By reviewers
Company SizeCount
Small Business129
Midsize Enterprise65
Large Enterprise285
 

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?
Graylog Enterprise performs well overall; however, the UI could be improved because the SOC team creates multiple das...
What is your primary use case for Graylog?
Graylog Enterprise is used primarily for log management and to perform security analytics. It helps the organization ...
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 Splunk, Wazuh, Cribl and others in Log Management. Updated: August 2026.
910,454 professionals have used our research since 2012.