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Grafana Loki vs Graylog Enterprise comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 14, 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
4th
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
19
Ranking in other categories
No ranking in other categories
Graylog Enterprise
Ranking in Log Management
9th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
22
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Log Management category, the mindshare of Grafana Loki is 6.3%, down from 7.7% compared to the previous year. The mindshare of Graylog Enterprise is 5.0%, down from 6.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Grafana Loki6.3%
Graylog Enterprise5.0%
Other88.7%
Log Management
 

Featured Reviews

reviewer2350791 - PeerSpot reviewer
Regional Associate & Engineer at a outsourcing company with 1,001-5,000 employees
Offers cost-effective log management with strong correlation features across observability tools
Grafana Loki's open-source capability is a significant benefit. Grafana has invested in making their enterprise tools competitive with other APM tools, facilitating cross-correlation with Mimir and Tempo for metrics and tracing. The tool offers good search functionality, and its on-premises capability is advantageous. The indexing performance is strong, making it a robust log management tool. Grafana Loki is notably cost-effective.
reviewer2704128 - PeerSpot reviewer
Head of Cyber Security & CTO at a tech services company with 51-200 employees
Robust event correlation enhances operations, yet integration scope can broaden for seamless data handling
The features and capabilities of Graylog that we have found most valuable are related to its basis on open search, which was ElasticSearch. We appreciate being able to integrate custom feeds and do custom parsers, and to be able to do some of the correlation on it. That all works effectively. 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. We use it for investigating problems and problem management. We throw all the information at it, we have it alerting for certain conditions, but generally we use it for deep diving into issues as needed.

Quotes from Members

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

Pros

"Grafana Loki's open-source capability is a significant benefit, and Grafana has invested in making their enterprise tools competitive with other APM tools, facilitating cross-correlation with Mimir and Tempo for metrics and tracing."
"We are using Grafana Loki as a database for real-time metrics."
"The log collection feature is good and the solution is easily understandable. v"
"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."
"Loki significantly saves time in troubleshooting by quickly pinpointing network issues."
"The solution's stability has never been a problem. Stability-wise, I rate the solution a nine to ten out of ten."
"Graylog is very handy."
"It has data adapters and lookup tables that utilize HTTP calls to APIs."
"Real-time UDP/GELF logging and full text-based searching."
"I am very proud of how very stable the solution is."
"Message forwarding through the in-built module."
"We're using the Community edition, but I know that it has really good dashboarding and alerts."
"Graylog Enterprise has positively impacted my organization by significantly minimizing our workload and making it easier to identify any issues in a service."
"The build is stable and requires little maintenance, even compared to some extremely expensive products."
 

Cons

"It's not intended for proprietary services, so you have to struggle with configuration a lot."
"The solution has shortcomings regarding security monitoring-oriented features that need improvement."
"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."
"Visualization-wise, Grafana Loki's dashboard looks a little outdated compared to other open-source visualization tools like Chronograf."
"The platform's stability needs improvement."
"In Grafana Loki, the creation of metrics is not so easy, making it an area that could be made easier."
"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."
"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-"
"I would like to see a default dashboard widget that shows the topology of the clusters defined for the graylog install."
"The infrastructure cost is the main issue. I like the rest. If the infrastructure costs could be lower, it would be fantastic."
"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."
"Elasticsearch recommendations for tuning could be better. Graylog doesn't have direct support for running the system inside of Kubernetes, so it can be challenging to fill in the gaps and set up containers in a way that is both performant and stable."
"Graylog can improve the index rotation as it's quite a complex solution."
"We ran into problems with Elasticsearch throwing a circuit-breaking exception due to field data size being too large. It turned out that the heap size directly impacted this size in a high-throughput environment, causing unexplained instability in Graylog. We were able to troubleshoot on the Elasticsearch size, but we should have been able to reference some minimum requirements for Graylog to know that our settings weren't sufficient."
"Lacks sufficient documentation."
 

Pricing and Cost Advice

"We use a free version."
"The solution is open source."
"The cost is less than other paid services like CloudWatch."
"My company doesn't need to pay for the licensing cost of the solution."
"Since we are using the open-source version of Grafana Loki, we are not paying anything for the solution."
"I find the licensing structure quite reasonable, as the free license effectively meets my requirements."
"You can use the free version of Grafana Loki on-premises."
"I use the solution's open-source version. Grafana Loki is a completely free solution for me."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"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."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"We're using the Community edition."
"We are using the free version of the product. However, the paid version is expensive."
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"Having paid official support is wise for projects."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
10%
Comms Service Provider
10%
Manufacturing Company
8%
Computer Software Company
15%
Comms Service Provider
10%
University
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise8
Large Enterprise4
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise8
 

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?
Improvements could be made in the enablement of the product, addressing the complexity of implementing these tools.
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 that we didn't need an enterprise plan, which is more suited for clients with less...
What needs improvement with Graylog?
An improvement I would suggest is in Graylog's user interface, such as allowing for font size adjustments. A potential enhancement could be the integration with Ollama to run large language models ...
 

Also Known As

No data available
Graylog2
 

Overview

 

Sample Customers

Information Not Available
Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Find out what your peers are saying about Grafana Loki vs. Graylog Enterprise and other solutions. Updated: December 2025.
879,711 professionals have used our research since 2012.