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Grafana Loki vs Graylog comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 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
7.8
Number of Reviews
18
Ranking in other categories
No ranking in other categories
Graylog
Ranking in Log Management
15th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
21
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Log Management category, the mindshare of Grafana Loki is 8.6%, up from 4.9% compared to the previous year. The mindshare of Graylog is 6.5%, up from 5.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
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.

Quotes from Members

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

Pros

"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 most valuable part of Loki is the ability to filter logs by keywords and devices."
"Different types of integrations with various sources are the most helpful and useful features of Grafana Loki that I found for myself."
"The solution's stability has never been a problem. Stability-wise, I rate the solution a nine to ten out of ten."
"I appreciate the capability to process logs from microservices and seamlessly integrate them into Grafana."
"The most valuable feature of Grafana Loki is the dashboards which are really simple to create."
"Grafana Loki is easy to monitor and detect errors."
"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."
"We have scaled from a single machine installation (a VM with a Graylog + ES + MongoDB) to (2 Graylog + 2 ES + 3 MongoDB). This was done smoothly with a minimal impact on logging."
"Graylog is valuable because it bridges technical knowledge to non-technical teams, presenting complex backend processes in a simple timeline."
"The build is stable and requires little maintenance, even compared to some extremely expensive products."
"Graylog is very handy."
"The product is scalable. The solution is stable."
"Real-time UDP/GELF logging and full text-based searching."
"Graylog's search functionality, alerting functionality, user management, and dashboards are useful."
 

Cons

"We face some bugs when we install the latest version of Grafana Loki."
"The solution's scalability depends on the team managing the Grafana instance."
"The solution has shortcomings regarding security monitoring-oriented features that need improvement."
"We encountered certain limitations when it came to alerting, particularly when dealing with specific data sources."
"My main concern is the recommended production-grade setup. They suggest using tools like Tanka or Jsonnet. They should simplify the process to increase adoption."
"The correlation of requests is not simple in Grafana Loki and can be improved."
"The platform's stability needs improvement."
"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."
"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."
"Graylog can improve the index rotation as it's quite a complex solution."
"More complex visualizations and the ability to execute custom Elasticsearch queries would be great."
"I would like to see a date and time in the Graylog Grok patterns so that I can save time when searching for a log. I like how the streams and the search query work, but adding a date and time will allow me to pull out a log in a milli-second."
"Its scalability gets complicated when we have to update or edit multiple nodes."
"Over six months, I had two similar issues where searches were performed on field "messages". It exhausted all the memory of the ES node causing an ES crash and a Graylog halt."
"More customization is always useful."
"I would like to see some kind of visualization included in Graylog."
 

Pricing and Cost Advice

"I use the open-source version of the product."
"I use the solution's open-source version. Grafana Loki is a completely free solution for me."
"Grafana Loki is an open-source solution."
"Grafana Loki is a free, open-source solution."
"My company doesn't need to pay for the licensing cost of the solution."
"We use a free version."
"The solution is open source."
"You can use the free version of Grafana Loki on-premises."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"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."
"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."
"I use the free version of Graylog."
"If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​"
"​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."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
10%
Comms Service Provider
10%
Manufacturing Company
8%
Computer Software Company
17%
Comms Service Provider
10%
Government
7%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 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 ...
 

Comparisons

 

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 and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.