Graylog Enterprise vs Splunk Enterprise Security comparison

Graylog and Splunk are both solutions in the Log Management category. Graylog is ranked #9 with an average rating of 7.4, while Splunk is ranked #2 with an average rating of 8.3. Graylog holds a 5.0% mindshare in Log Management, compared to Splunk’s 7.1% mindshare. Additionally, 95% of Graylog users are willing to recommend the solution, compared to 94% of Splunk users who would recommend it.

Graylog Enterprise

Read 24 Graylog Enterprise reviews

7,823 Views
7,823 Comparison Views

95% willing to recommend

Splunk Enterprise Security

Read 375 Splunk Enterprise Security reviews

24,784 Views
13,383 Comparison Views

94% willing to recommend

Graylog Enterprise

Splunk Enterprise Security

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 14, 2025

Splunk Enterprise Security and Graylog Enterprise compete in the log management and security information and event management (SIEM) markets. Based on data, Splunk might have the upper hand due to its scalability and broad integrations, while Graylog is noted for its open-source advantages and specific use case efficiency.

Features: Splunk Enterprise Security is renowned for its log management, comprehensive search via schema-on-read technology, and strong integration capabilities. It provides operational intelligence and flexibility in data handling, alongside enhanced visibility from diverse data sources. Graylog Enterprise features robust search functionalities and alerting capabilities, emphasizing its strength in managing data from various sources on an open-source platform.

Room for Improvement: Splunk Enterprise Security users seek improved visualizations and a more intuitive GUI, alongside better security administration controls. Enhancements in real-time intelligence and second-factor authentication are also desired. Graylog Enterprise needs a more user-friendly interface for complex environments and better documentation, along with increased integration capabilities for extended flexibility.

Ease of Deployment and Customer Service: Splunk Enterprise Security offers a variety of deployment options including public, private, hybrid clouds, and on-premises solutions, supported by a robust community. Users value the professional support and knowledge base, despite noted delays in response times. Graylog Enterprise, mostly deployed on-premises or in hybrid clouds, benefits from the simplicity of open-source availability, though lacks extensive support for resolving complex issues.

Pricing and ROI: Splunk Enterprise Security is perceived as high-cost, justified by its extensive features and performance in large enterprises, with substantial returns in security and operational efficiency. Graylog Enterprise appeals to budget-conscious users due to its open-source model, offering significant licensing cost savings but potentially requiring more development work for full-scale implementation.

To learn more, read our detailed Graylog Enterprise vs. Splunk Enterprise Security Report (Updated: December 2025).

Buyer's Guide

Graylog Enterprise vs. Splunk Enterprise Security

December 2025

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Review summaries and opinions

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

Categories and Ranking

Graylog Enterprise

Ranking in Log Management

9th

Average Rating

8.0

Reviews Sentiment

5.4

Number of Reviews

Ranking in other categories

No ranking in other categories

Splunk Enterprise Security

Ranking in Log Management

2nd

Average Rating

8.4

Reviews Sentiment

7.3

Number of Reviews

375

Ranking in other categories

Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)

Mindshare comparison

As of January 2026, in the Log Management category, the mindshare of Graylog Enterprise is 5.0%, down from 6.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.1%, down from 8.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Log Management Market Share Distribution
Product	Market Share (%)
Splunk Enterprise Security	7.1%
Graylog Enterprise	5.0%
Other	87.9%

Log Management

Featured Reviews

NicolaeCIornii

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.

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reviewer1469784

Senior Manager at a financial services firm with 10,001+ employees

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.

Read full review

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."

"It is used as a log manager/SIEM. It provides visibility into the infrastructure and security related events."

"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."

"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."

"Open source and user friendly."

"UDP is a fast and lightweight protocol, perfect for sending large volumes of logs with minimal overhead."

"Real-time UDP/GELF logging and full text-based searching."

More Graylog Enterprise pros

"Splunk is user-friendly. We can easily customize the monitoring script."

"Splunk Enterprise Security is so easy as it scales with us as we grow."

"Splunk Enterprise Security helps my SOC team prioritize and investigate high-fidelity alerts more effectively by enabling us to quickly gather information, collaborate, and provide various teams with access to the same information, allowing them to follow the workflow to complete the task."

"The query functionality is very easy to use and fast to retrieve logs in comparison to other SIEM solutions."

"Splunk Enterprise Security scales well with the growing needs of our company."

"The feature I appreciate the most about Splunk Enterprise Security is Search Processing Language, which has benefited my organization by making searching data a lot easier than other tools I've used."

"It follows MITRE ATT&CK and Cyber Kill Chain frameworks. There are certain notable events for which we can configure our security posture."

"Easy to deploy and simple to use."

More Splunk Enterprise Security pros

Cons

"There are many other applications in the market that influenced my rating reduction."

"The problem was with the complexity and the cost to add extensions."

"I would like to see some kind of visualization included in Graylog."

"The area in Graylog that needs to be improved or enhanced would be the integrations."

"I would like to see a default dashboard widget that shows the topology of the clusters defined for the graylog install."

"Its scalability gets complicated when we have to update or edit multiple nodes."

"I hope to see improvements in Graylog for more interactivity, user-friendliness, and creating alerts. The initial setup is complex."

"With technical support, you are on your own without an enterprise license."

More Graylog Enterprise cons

"Splunk Enterprise Security can be improved with more ease of configuration. It is pretty straightforward to get it started, however, to really check if my data is all available and how to activate the right use case and the right correlations is still sometimes a hassle."

"Pricing is certainly an area that could use improvement. While some vendors may offer lower prices, the value we receive here truly sets this solution apart."

"The price has room for improvement."

"The algorithms customization of Splunk could improve. They have limited algorithms for machine learning support. If they can allow the user to add more machine learning algorithms, such as the ability to choose the algorithm that a user might want. Additionally, they should provide the required libraries for those algorithms, and then analyzes the data for use."

"There are a lot of competitive products that are doing better than what Splunk is doing on the analytics side."

"Splunk Enterprise Security is a wonderful solution, however, the background configuration process could be better as the administration process is very complicated."

"The tool itself is very difficult to configure. It's great for its number of inputs, for the different types of systems devices, and things that it could collect information from. To actually make good use of it, you need a fairly dedicated team of people that have some reasonably good programming or modeling skills to be able to do the things that you need to do with it. Whereas a lot of the other tools are better packaged for that, and so require a lot less training and a lot less dedication."

"Spam has different plugins but by default, the logs are not organized, it shows that there are roll-ups that are out of the box. I saw many plugins that can help improve or extend Splunk's functionality but I haven't tried any of them."

More Splunk Enterprise Security cons

Pricing and Cost Advice

"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."

"If you want something that works and do not have the money for Splunk or QRadar, take Graylog."

"I use the free version of Graylog."

"We are using the free version of the product. However, the paid version is expensive."

"It's an open-source solution that can be used free of charge."

"Consider Enterprise support if you have atypical needs or setup requirements."

"Having paid official support is wise for projects."

"We're using the Community edition."

More Graylog Enterprise pricing and cost advice

"Price-wise, if you compare QRadar to Splunk for SIEM functionality then they are in the same range but when you integrate SOAR with these solutions, Splunk takes the lead and is more competitive."

"It is possible to use a developer's license, which is up to 10GB per day of volume traffic, which is usually enough for most use cases."

"The cost is on the high end, which makes it difficult for some organizations to use."

"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."

"Splunk Enterprise Security is an expensive solution."

"It can be cost-prohibitive when you start to scale and have terabytes of data. Its cost model is based on how much data it processes a day. If they're able to create scaled-down niche or custom package offerings, it may help with the cost. Instead of the full-blown features, if they can narrow the scope where it can only be used for a specific purpose, it would kind of create that market for the product, and it may help with the costing. When you start using it as a central aggregator and you're pumping tons of logs at it, pretty soon, you'll start hitting your cap on what it can process a day. Once you've got that, you're kind of defeating the purpose because you're going to have to scale back."

"The variables and the flexibility that Splunk provides are helpful, especially in a hybrid and multi-cloud environment."

"It is expensive. I used to buy it early on, but then they combined it into a higher-up organization. They buy it for multiple systems now. Last time, I paid around 60K for it. There is just the licensing fee. That's all."

More Splunk Enterprise Security pricing and cost advice

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Comparison Review

Vinod Shankar

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…

Read full review

Top Industries

By visitors reading reviews

Computer Software Company

14%

Comms Service Provider

11%

University

Government

Financial Services Firm

13%

Computer Software Company

11%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	5
Large Enterprise	9

By reviewers
Company Size	Count
Small Business	109
Midsize Enterprise	50
Large Enterprise	264

Questions from the Community

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 that we didn't need an enterprise plan, which is more suited for clients with less...

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What needs improvement with Graylog?

I do not have any specific examples or numbers, such as time saved or incidents to share. Currently, I have no suggestions for how Graylog Enterprise can be improved, as there are no pain points or...

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What is your primary use case for Graylog?

Graylog Enterprise is the logging and management tool we initially used, but later we stopped using it and switched to Loki, Grafana Loki for the logs. Eventually, we moved back to Graylog Enterpri...

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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 asking to miss details that are critical, and ending up a statistic. Also, rememb...

See all answers

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 ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...

See all answers

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 monitoring information from different sources. Splunk is very good at alerting us if we...

See all answers

Comparisons

Grafana Loki vs Graylog Enterprise

Compared 24% of the time

Wazuh vs Graylog Enterprise

Compared 20% of the time

syslog-ng vs Graylog Enterprise

Compared 10% of the time

Security Onion vs Graylog Enterprise

Compared 6% of the time

Fortinet FortiAnalyzer vs Graylog Enterprise

Compared 3% of the time

More Graylog Enterprise Competitors

IBM Security QRadar vs Splunk Enterprise Security

Compared 9% of the time

Wazuh vs Splunk Enterprise Security

Compared 5% of the time

Dynatrace vs Splunk Enterprise Security

Compared 4% of the time

Sentinel vs Splunk Enterprise Security

Compared 4% of the time

Datadog vs Splunk Enterprise Security

Compared 3% of the time

More Splunk Enterprise Security Competitors

Product Reports

Buyer's Guide

Graylog Enterprise

January 2026

Download Graylog Enterprise product report

Buyer's Guide

Splunk Enterprise Security

December 2025

Download Splunk Enterprise Security product report

Also Known As

Graylog2

No data available

Overview

Graylog Enterprise, recognized for log collection, real-time search, and enriched data handling, offers an open-source framework that integrates seamlessly with Elasticsearch. Its user-centric interface streamlines data correlation and log aggregation, supporting both backend services and comprehensive monitoring needs.

Graylog Enterprise stands out for its stability and powerful log management capabilities, facilitating efficient log aggregation, real-time updates, and data analytics. Users benefit from its plugin-based alerting, user-friendly interface, and support for microservices, including Docker integration. The ability to search in detail, flexible API integration, and data enrichment features are highly valued. Challenges include collector application issues, desired visualization enhancements, and authentication integration improvements. Users seek advancements in UI customization, backup functions, and easier rule creation.

What are Graylog Enterprise's most important features?

Log Collection: Efficiently aggregates and handles diverse logs.
Real-Time Search: Provides immediate log data access.
Custom Alerts: Plugin-based alerting for tailored notifications.
Dashboard Enhancements: Improved visualization for data insights.
Data Enrichment: Adds value through detailed log analysis.

What benefits and ROI can users expect?

Audit Trail Support: Essential for compliance in financial sectors.
Security Event Correlation: Enables incident analysis and response.
Faster Issue Identification: Speeds up troubleshooting with detailed visualization.
API Flexibility: Seamless integration across systems and environments.
Comprehensive Monitoring: Centralized log management enhances oversight.

In industrial use, Graylog Enterprise is crucial for audit trailing in financial sectors, facilitating security event identification and error monitoring. Backend teams leverage real-time analytics for swift issue resolution, while developers appreciate the comprehensive log visualization enabled by Docker integration for microservice management.

Graylog

Splunk Enterprise Security delivers powerful log management, rapid searches, and intuitive dashboards, enhancing real-time analytics and security measures. Its advanced machine learning and wide system compatibility streamline threat detection and incident response across diverse IT environments.

Splunk Enterprise Security stands out in security operations with robust features like comprehensive threat intelligence and seamless data integration. Its real-time analytics and customizable queries enable proactive threat analysis and efficient incident response. Integration with multiple third-party feeds allows detailed threat correlation and streamlined data visualization. Users find the intuitive UI and broad compatibility support efficient threat detection while reducing false positives. Despite its strengths, areas such as visualization capabilities and integration processes with cloud environments need enhancement. Users face a high learning curve, and improvements in automation, AI, documentation, and training are desired to maximize its potential.

What Are the Key Features of Splunk Enterprise Security?

Log Management: Efficiently manages and organizes a vast amount of logs for better data handling.
Rapid Data Search: Quickly retrieves relevant data for fast decision-making.
Flexible Dashboards: Customizable dashboards provide clear data visualization.
Comprehensive Threat Intelligence: Offers detailed insights to preemptively defend against threats.
Real-Time Analytics: Analyzes data in real-time to enhance response times.
Integration with Third-Party Feeds: Streamlines information flow from multiple sources.

What Benefits Should Users Investigate in Reviews?

Efficient Incident Response: Enhances the ability to respond promptly to threats.
False Positive Reduction: Minimizes incorrect threat alarms, making monitoring more efficient.
Threat Detection Speed: Accelerates the identification and evaluation of security threats.
Cost-Effectiveness: Potential savings through better licensing options and operational efficiency.
User Adaptability: Enhancements in documentation and training resources aid in overcoming the learning curve.

In specific industries like finance and healthcare, Splunk Enterprise Security is instrumental for log aggregation, SIEM functionalities, and compliance monitoring. Companies leverage its capabilities for proactive threat analysis and response, ensuring comprehensive security monitoring and integration with various tools for heightened operational intelligence.

Splunk

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur

Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.

Buyer's Guide

Graylog Enterprise vs. Splunk Enterprise Security

December 2025

Free Report: Graylog Enterprise vs. Splunk Enterprise Security

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