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Grafana Loki vs LogRhythm SIEM comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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
LogRhythm SIEM
Ranking in Log Management
13th
Average Rating
8.4
Reviews Sentiment
6.4
Number of Reviews
175
Ranking in other categories
Security Information and Event Management (SIEM) (8th)
 

Mindshare comparison

As of October 2025, in the Log Management category, the mindshare of Grafana Loki is 7.9%, up from 6.5% compared to the previous year. The mindshare of LogRhythm SIEM is 2.3%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Grafana Loki7.9%
LogRhythm SIEM2.3%
Other89.8%
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.
SumitKumar20 - PeerSpot reviewer
Tool consistently aids in effective threat detection and monitoring but could benefit from improved log source management and resource optimization
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of gigabytes, terabytes, or petabytes from particular devices or environments. This information is crucial for planning future storage needs and scalability. The system monitor (collector) agent has issues with resource consumption. Even when not actively collecting data, the agent continues to consume significant CPU and memory resources, which can be particularly problematic for small business environments with limited resources. LogRhythm SIEM could improve by adding more default device support. While they have good default settings for devices such as Palo Alto firewalls, custom log sources often require extensive work. Increasing the number of supported devices with built-in policies and functionality would reduce the need for custom work. Competitive SIEM tools often provide more comprehensive coverage for various devices and vendors.

Quotes from Members

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

Pros

"Grafana Loki is easy to monitor and detect errors."
"The most valuable features of the solution stem from the fact that it is an open-source tool that is stable and flexible."
"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 part of Loki is the ability to filter logs by keywords and devices."
"Loki significantly saves time in troubleshooting by quickly pinpointing network issues."
"Loki also utilizes the same service discovery mechanism as used by Prometheus. So, whatever labeled metadata you see in Prometheus, you have the exact same metadata in the Loki system. Given this level of intricacy and the attempt to address these challenges, I firmly believe that Loki deserves praise for the work."
"Grafana agent is very lightweight and does not cost significant resources of our cluster."
"The log collection feature is good and the solution is easily understandable. v"
"The product is great for medium to large-scale organizations."
"LogRhythm SIEM has some valuable features, including its ability to maintain backups of events and manage alerts separately through an engine that handles content and administration tasks."
"LogRhythm SIEM's automated response capabilities help organizations mitigate threats through alerts based on specific use cases and monitoring requirements."
"LogRhythm's GUI is easy to explore. We also like other features, such as its integration with other security solutions, log correlation, and the deployment of use cases."
"File Integrity Monitoring is really valuable because we have it set up on our core assets. This is one of the key features that I utilize. We also use it quite a lot for event management to do reporting."
"LogRhythm NextGen SIEM is customizable, simple to manage, and there are many features. The solution does not require an expert to be able to use it, anyone can use it."
"In terms of security, LogRhythm NextGen SIEM is great."
"Overall effectiveness is very good. I like how it is oriented to both analysts and technical support people. It's easily adopted by end users as much as by technologists."
 

Cons

"I do not see any areas for improvement at the moment."
"The solution has shortcomings regarding security monitoring-oriented features that need improvement."
"The solution's scalability depends on the team managing the Grafana instance."
"We face some bugs when we install the latest version of Grafana Loki."
"The correlation of requests is not simple in Grafana Loki and can be improved."
"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."
"Enhancing speed could be a game-changer, and while it might vary depending on the application, it's a factor worth exploring."
"When we had version 7.2.6, there were a lot of issues deploying that version and with the indexing. The indexer was unstable. So, we were not able to use the platform when we were on that version until we were able to upgrade to 7.3.4."
"Granted, we haven't enabled the UEBA module, but we're forwarding all our proxy logs to LogRhythm and we have a really hard time pulling those proxy logs back out of LogRhythm. However, when we take LogRhythm and forward the same logs into somebody else's user-based analytics software, we get the majority of what we were missing... If we've got all our proxy logs and I go out to Google or Facebook or the like, we should be able to go in and pull that information out ten minutes later, but it's a big challenge to do that."
"The solution is likely not the best option for a smaller organization."
"The SOAR capabilities need improvements as they currently require programming knowledge."
"My biggest complaint is documentation. Everyone tells me, "We have documentation on the Community site." I have searched for different types of documentation on numerous occasions, and it might be there, but it's not easily findable."
"Scalability-wise, it's not that great."
"We have run into problems with stability going through upgrade processes. Recently, we have been on the front edge of the upgrade path. When that happens we tend to run into issues either with certain functionality not working after the upgrades or stability issues because of the upgrades."
"I have Windows administrators who will remove the agent when they think that that's what's fouling up their upgrade or their install or their reconfiguration, etc. The first thing they do is to turn off the antivirus, turn down the firewall, and take off anything else. They don't realize that the LogRhythm agent is just sitting there monitoring. Most antivirus products have application protection features built-in where, if I'm an admin on a box, I can't uninstall antivirus. I need to have to the antivirus admin password to do that."
 

Pricing and Cost Advice

"The solution is open source."
"Grafana Loki is a free, open-source solution."
"I use the open-source version of the product."
"My company doesn't need to pay for the licensing cost of the solution."
"I find the licensing structure quite reasonable, as the free license effectively meets my requirements."
"The pricing structure varies based on the number of users; there might be specific taxes to pay for it."
"You can use the free version of Grafana Loki on-premises."
"Grafana Loki is an open-source solution."
"We work with French-speaking African countries, and it costs more than the average SIEM solution. Also, the pricing isn't too flexible. AlienVault, Splunk, and IBM QRadar are more suitable for customers on a tight budget."
"I think the tool is reasonably priced. There is a need to pay per year towards the licensing costs of the tool."
"In comparison to the competition, they are more affordable. This allows us to do more with less."
"It costs a great amount, but its pricing is competitive with some of the other vendors. For licensing and support, we pay about 20,000. There are no additional costs or anything like that."
"I have seen a measurable decrease in the mean time to detect and respond to threats. We went from not detecting them to detecting them. We can actually pick up what is anomalous in our network now."
"It is a very cost-effective solution."
"I would rate the tool's pricing around eight out of ten."
"On a scale of one to ten, where one is low, and ten is high, I rate the pricing between six and seven."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Comms Service Provider
10%
Financial Services Firm
10%
Manufacturing Company
8%
Computer Software Company
12%
Government
10%
Financial Services Firm
8%
Manufacturing Company
8%
 

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 Business38
Midsize Enterprise38
Large Enterprise83
 

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 is the difference between log management and SIEM?
Rony, Daniel's answer is right on the money. There are many solutions for each in the market, a lot depends upon your ability to manage such tools and your budget. A small operation may be best s...
What needs improvement with LogRhythm NextGen SIEM?
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of...
What do you like most about LogRhythm SIEM?
I find LogRhythm's log management capabilities to be beneficial.
 

Also Known As

No data available
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
 

Overview

 

Sample Customers

Information Not Available
Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
Find out what your peers are saying about Grafana Loki vs. LogRhythm SIEM and other solutions. Updated: September 2025.
872,706 professionals have used our research since 2012.