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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 September 2025, in the Log Management category, the mindshare of Graylog Enterprise is 6.2%, up from 6.1% compared to the previous year. The mindshare of ManageEngine EventLog Analyzer is 0.9%, down from 1.1% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.6%, down from 9.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.6%
Graylog6.2%
ManageEngine EventLog Analyzer0.9%
Other85.3%
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.
Kyle Vernham - PeerSpot reviewer
Built-in searches and unified data access streamline alert investigation and boosts analyst efficiency
The two features I appreciate the most in Splunk Enterprise Security are the built-in searches, which have been very easy for us to get started with right out of the box, and the fact that it accesses all of our other systems. You can access it as a pane of glass rather than having to search individually. We also have the option to compare our analysts from our service to service. Splunk Enterprise Security helps our SOC team prioritize and investigate high-fidelity alerts more effectively by providing a more in-depth look and the ability to access a lot more of our data. Instead of jumping from several segmented systems, it allows us to have everything brought together in one place. For example, you have to move from our purview to our build system and to Splunk Enterprise Security, and it enables us to streamline that process. The built-in features of Splunk Enterprise Security, which we recently procured, have given us a good starting point and demonstrated the value of the product, providing an easy way to sell it to our company. The ease of getting everything into our purview helps us, and it serves as a good start for the investigation part in one location rather than what we usually have, which is jumping from system to system to system. Splunk Enterprise Security plays a role in our company's strategy to combat insider threats and advanced persistent threats by currently being in its technical test phase. We are still rolling it out, and it should help us find any insider threats based on information that our policy states should not be present in our system. Splunk Enterprise Security's risk-based alerting (RBA) has impacted our alert volume and analyst productivity because we've got many different systems feeding into it. However, it has helped to make it easier for our analysts to go through a set of events rather than 100 alerts. RBA allows us to streamline the process and customize it for our analysts. When it comes to leveraging Splunk Enterprise Security's dashboards and visualizations to communicate security posture to executives, it's pretty straightforward for any type of information. The visualization is easy to understand, but I haven't had any direct conversations with our executives.

Quotes from Members

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

Pros

"The product is scalable. The solution is stable."
"I like the correlation and the alerting."
"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."
"I am very proud of how very stable the solution is."
"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 build is stable and requires little maintenance, even compared to some extremely expensive products."
"It has data adapters and lookup tables that utilize HTTP calls to APIs."
"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 support system is very good."
"ManageEngine EventLog Analyzer is easy to gather reports to give to management. My supervisor has access to the solution and he enjoys the graphs."
"The tool's reports show activities."
"The reporting features are noteworthy, as they provide templates that streamline the process of generating reports"
"It is stable."
"The most valuable features of ManageEngine EventLog Analyzer are the number of capabilities, file integration monitoring, web server log collection, and alert configuration."
"The user interface is very good."
"The dashboard for administrators or assigned engineers can identify vulnerabilities, activities, infected systems, large files, or DDoS attacks."
"The flexibility of the search capability is most valuable. You can use it for more than just a basic log aggregator. It is powerful in that regard."
"Splunk UBA is useful for fraud detection and for detection of APTs, advanced persistent threats."
"Splunk Enterprise Security has helped speed up our security investigations."
"It has helped us look at modern technology, as well as penetrate our legacy systems, to see where the bottlenecks are."
"We primarily use it to correlate logs throughout the enterprise for both searching and use in investigations."
"If you want to understand how it can analyze or find out incidents, the visibility is good."
"Splunk's visualizations make it easy for users to understand the data."
"The solution has made us more secure."
 

Cons

"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-"
"Lacks sufficient documentation."
"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."
"More complex visualizations and the ability to execute custom Elasticsearch queries would be great."
"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."
"The biggest problem is the collector application, as we wanted to avoid using Graylog Collector Sidecar due to its architecture."
"The infrastructure cost is the main issue. I like the rest. If the infrastructure costs could be lower, it would be fantastic."
"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."
"There isn't good security integration when it comes to cybersecurity. The correlation of logs isn't so simple."
"The scalability is limited."
"There's a lot to improve in terms of connectivity. Currently, we're utilizing it across various infrastructures and environments, including others' cloud. However, connecting it to our infrastructure and integrating it with some of our SMAX solutions poses difficulties."
"Last month, we faced an issue with a Hawaiian VPN user activity. It's like a Fortinet device configured for VPN users."
"I would like to see more detailed reports."
"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."
"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."
"Last month, we faced an issue with a Hawaiian VPN user activity."
"The analytics of Splunk could be improved."
"A lot of people are averse to using new tools so if they make it even more user-friendly than it already is, I think that could go a long way."
"I would like Splunk to add more integration. QRadar has many indications with more products than Splunk."
"The product was designed for security and IT with business intelligence needs, such as PDF exporting, but this has not been the highest priority. While the functionality is there, it could be developed more."
"To improve Splunk Enterprise Security, I suggest incorporating more AI features for faster remediation and enhanced responses, allowing users to build more correlation searches quickly."
"Splunk needs to be able to hold more days of data. At the moment it only holds three months of data."
"We were inundated with the amount of alerts and alarms that we could get out of it. It is also a resource hog and we didn't have the resources to support it on-prem so we're taking it offline now."
"Having analysts put their notes directly within the investigation feature in the incident review would be beneficial."
 

Pricing and Cost Advice

"We are using the free version of the product. However, the paid version is expensive."
"Having paid official support is wise for projects."
"I am using a community edition. I have not looked at the enterprise offering from 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."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"I use the free version of Graylog."
"We're using the Community edition."
"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."
"ManageEngine EventLog Analyzer is expensive. Its licensing costs are annual."
"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."
"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."
"The solution is a little expensive."
"It is expensive. I work for multiple clients. I am working for more than five clients, but most of the clients are switching from Splunk to Sentinel because of the cost. Even though Sentinel is very limited, clients are moving to Sentinel."
"The pricing is based on the volume of data fed into it, which can lead to substantial costs. This pricing model is complex and unpredictable, making cost management difficult."
"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."
"Personnel costs are saved by not having to involve the domain developers from multiple teams when tracing a problem that spans multiple platforms."
"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."
"Splunk has always been on the expensive side."
"Splunk Enterprise Security is a worthwhile investment given the comprehensive range of features it offers."
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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
16%
Comms Service Provider
11%
Government
8%
University
8%
Computer Software Company
14%
Government
10%
Manufacturing Company
9%
Healthcare Company
8%
Computer Software Company
14%
Financial Services Firm
13%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise4
Large Enterprise7
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise7
Large Enterprise2
By reviewers
Company SizeCount
Small Business109
Midsize Enterprise49
Large Enterprise255
 

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: August 2025.
867,497 professionals have used our research since 2012.