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Grafana Loki vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 2025

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

Grafana Loki
Ranking in Log Management
3rd
Average Rating
8.2
Reviews Sentiment
7.8
Number of Reviews
18
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
369
Ranking in other categories
Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

As of November 2025, in the Log Management category, the mindshare of Grafana Loki is 7.6%, up from 6.9% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.5%, down from 8.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.5%
Grafana Loki7.6%
Other84.9%
Log Management
 

Featured Reviews

Volodymyr Bondarchuk - PeerSpot reviewer
Integrations enhance monitoring but problem-solving proves challenging
Different types of integrations with various sources are the most helpful and useful features of Grafana Loki that I found for myself. As part of Kubernetes technology, I noticed benefits from using this product such as availability, configuration balancing, high availability solutions for high performance, and failover clustering. It provides a clear picture about the state of the system and gives needed information for taking action and quickly fixing problems.
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 solution's stability has never been a problem. Stability-wise, I rate the solution a nine to ten out of ten."
"The most valuable features of the solution stem from the fact that it is an open-source tool that is stable and flexible."
"The most valuable feature of Grafana Loki is the dashboards which are really simple to create."
"Different types of integrations with various sources are the most helpful and useful features of Grafana Loki that I found for myself."
"The most valuable feature of the solution is the tool's GUI. The solution's GUI is very user-friendly."
"The effectiveness of filters is pivotal for optimizing the search process and extracting the specific information we need from the extensive log data."
"The product's most valuable features are ease of installation, management, and reporting. It has an efficient ability to set thresholds for alerts, as well."
"I appreciate the capability to process logs from microservices and seamlessly integrate them into Grafana."
"The solution's most valuable feature is the dashboard, which allows us to see everything on the same page and provides easy visibility into problems."
"Being able to track impossible travel logins and things of that nature is valuable. We can track user logins from various IPs, various countries, and at various times to see if everything adds up."
"The stability and reliability of Splunk Enterprise Security is outstanding. It's a software and product that anybody can really pick up and use."
"I am satisfied with the support."
"It is easy to use in any environment."
"Splunk incorporates a lot of elements that help to reduce security risks. For it to reach certain compliance, we need to have some security insight. Splunk is a very good SIEM, it’s a top solution, but the best feature is its cost of visibility. We have all the most important features to detect vulnerabilities or risks."
"The features of Splunk Enterprise Security that I prefer the most are risk-based alerting, the new Mission Control, and the integrations that are coming into place between Mission Control and Splunk SOAR."
"We evaluated several solutions and selected Splunk due to the functionality and cost."
 

Cons

"I would rate Grafana Loki a seven out of ten because it is open source, and sometimes there can be problems that are difficult to fix without official support."
"Enhancing speed could be a game-changer, and while it might vary depending on the application, it's a factor worth exploring."
"We face some bugs when we install the latest version of Grafana Loki."
"Visualization-wise, Grafana Loki's dashboard looks a little outdated compared to other open-source visualization tools like Chronograf."
"There is a need for some change in the alerting types of the product. In short, a few changes in the alert area are needed due to minor shortcomings."
"We had a well-structured dashboard with a functional query. However, an issue arose when the Kubernetes pod restarted. The statistics from our Grafana query would reset, dropping to zero and starting anew. This was particularly noticeable with linear graphs, which are expected to show consistent growth."
"The product must improve its UI."
"The correlation of requests is not simple in Grafana Loki and can be improved."
"Its deployment is difficult. I remember when I first started learning, I faced several challenges, especially when deploying VMware in a virtual environment."
"Regarding room for improvement, I expect Splunk to provide information about new features on a regular basis, such as notifications about enhancements that may improve security posture."
"Splunk Enterprise Security could improve in automation, flexibility, and providing more content out of the box."
"It needs more formatting control without having to be an admin."
"For us, the area that Splunk Enterprise Security can improve is performance optimization."
"I'd love to see more integrations, which is one of the primary points of the key node with Splunk Enterprise Security."
"While Splunkbase (the app repository) has a lot of great content, some apps are terribly old and could stand to be updated or purged."
"Many of my clients want to get better at Splunk, but they're afraid of using the tool because they feel it's too complex for them."
 

Pricing and Cost Advice

"Grafana Loki is an open-source solution."
"We use a free version."
"The pricing structure varies based on the number of users; there might be specific taxes to pay for it."
"I use the open-source version of the product."
"The cost is less than other paid services like CloudWatch."
"Grafana Loki is a free, open-source solution."
"I find the licensing structure quite reasonable, as the free license effectively meets my requirements."
"My company doesn't need to pay for the licensing cost of the solution."
"This product could use better pricing in general."
"It is a bit costly."
"Splunk Enterprise becomes extremely expensive after the 20GB/month license."
"The licensing model can be expensive, but the value it provides is significant."
"Splunk Enterprise Security is expensive."
"Licensing is a yearly, one-time cost."
"As a team, we prefer the old pricing model with a perpetual license. We are still evaluating the whole subscription-based model."
"Its pricing model can be improved."
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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%
Financial Services Firm
10%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
14%
Computer Software Company
14%
Manufacturing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise8
Large Enterprise3
By reviewers
Company SizeCount
Small Business110
Midsize Enterprise50
Large Enterprise257
 

Questions from the Community

What do you like most about Grafana Loki?
We are using Grafana Loki as a database for real-time metrics.
What is your experience regarding pricing and costs for Grafana Loki?
Since it is an open source tool, there are no charges or fees.
What needs improvement with Grafana Loki?
I have no ideas at this moment about what could be improved in Grafana Loki.
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...
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 ...
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...
 

Overview

 

Sample Customers

Information Not Available
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 Grafana Loki vs. Splunk Enterprise Security and other solutions. Updated: September 2025.
872,846 professionals have used our research since 2012.