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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
8.0
Number of Reviews
17
Ranking in other categories
No ranking in other categories
Graylog
Ranking in Log Management
16th
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Log Management category, the mindshare of Grafana Loki is 8.5%, up from 3.0% compared to the previous year. The mindshare of Graylog is 6.6%, up from 5.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management
 

Featured Reviews

CarlosPimentel - PeerSpot reviewer
Efficient log filtering enhances quick network troubleshooting
We use Grafana Loki for various verticals including manufacturing, finance, health, and aerospatial sectors. It primarily helps in monitoring security and access to devices. Grafana dashboards are used to track access success and failure and audit commands issued on devices Loki significantly…
Andrey Mostovykh - PeerSpot reviewer
Real-time analysis, easy setup, and open source
We stopped using it for analytics because of its price, and at the moment, we are using it mostly for log centralization. If you use it with high traffic for analytical purposes, as well as for the logs, the infrastructure costs are unbelievable. Graylog is a great product backed by Elasticsearch as the storage and query engine. It is just an interface on top of Elasticsearch and some Elasticsearch management. The indexes that are kept in Elasticsearch are managed by Graylog software. Elasticsearch is a decent product, but it's very infrastructure-heavy. It requires lots of resources, and if you make a mistake with provisioning, you are likely to not get a cluster back. We had a couple of outages like that, and we hated that. So, we ended up over-provisioning resources just to avoid such situations from happening. If you have a whole team trying to fix the Graylog instance for two days, that's a bit too much. That may be my Norwegian take on it, but the engineering resources are expensive. It's better to just provision the infrastructure. Overall, the product is great, and the features are just fine, but the infrastructure cost is what is killing it. The infrastructure cost is the main issue. I like the rest. If the infrastructure costs could be lower, it would be fantastic. I'm not sure if they can improve the infrastructure cost with the way Elasticsearch is. If they keep using Elasticsearch, maybe there are some opportunities there, or they can support other backends with cheaper storage. They could have a different backend to replace Elasticsearch or do some tweaks to Elasticsearch to reduce the costs. There could be partial parsing of logs or parsing on demand so that when you write data through Graylog to Elasticsearch, it doesn't need to crunch in every detail requiring that much CPU.

Quotes from Members

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

Pros

"The effectiveness of filters is pivotal for optimizing the search process and extracting the specific information we need from the extensive log data."
"There are new features like that pilot code and things like that for profiling."
"The most valuable feature of the solution is the tool's GUI. The solution's GUI is very user-friendly."
"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."
"The log collection feature is good and the solution is easily understandable. v"
"Grafana Loki is easy to monitor and detect errors."
"We are using Grafana Loki as a database for real-time metrics."
"The solution's stability has never been a problem. Stability-wise, I rate the solution a nine to ten out of ten."
"Allowing us to set up alerts and integrate with platforms we already use, such as Slack and OpsGenie to alert users of these errors proactively, is also a very useful feature."
"Graylog is very handy."
"The product is scalable. The solution is stable."
"The best feature of Graylog is the Elasticsearch integration. We can integrate and we can run filters, such as an event of interest, and those logs we can send to any SIEM tool or as an analytic. Additionally, there are clear and well-documented implementation instructions on their website to follow if needed."
"It is used as a log manager/SIEM. It provides visibility into the infrastructure and security related events."
"Message forwarding through the in-built module."
"The ability to write custom alerts is key to information security and compliance."
"It has data adapters and lookup tables that utilize HTTP calls to APIs."
 

Cons

"In Grafana Loki, the creation of metrics is not so easy, making it an area that could be made easier."
"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 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."
"The Docker container partition feature needs improvement as they do not reuse the space and goes into a pending state."
"I do not see any areas for improvement at the moment."
"We encountered certain limitations when it came to alerting, particularly when dealing with specific data sources."
"It's not intended for proprietary services, so you have to struggle with configuration a lot."
"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."
"Dashboards, stream alerts and parsing could be improved."
"Lacks sufficient documentation."
"Graylog could improve the process of creating rules. We have to create them manually by doing parses and applying them. Other SIEM solutions have basic rules and you can create and get more events of interest."
"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."
"There should be some user groups and an auto sign-in feature.​"
"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."
 

Pricing and Cost Advice

"The solution is open source."
"Grafana Loki is an open-source solution."
"Since we are using the open-source version of Grafana Loki, we are not paying anything for the solution."
"We use a free version."
"Grafana Loki is a free, open-source solution."
"I use the solution's open-source version. Grafana Loki is a completely free solution for me."
"The cost is less than other paid services like CloudWatch."
"I find the licensing structure quite reasonable, as the free license effectively meets my requirements."
"If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​"
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"Having paid official support is wise for projects."
"​You get a lot out-of-the-box with the non-enterprise version, so give it a try first."
"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.​"
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
10%
Comms Service Provider
10%
Manufacturing Company
8%
Computer Software Company
18%
Comms Service Provider
10%
Government
8%
Educational Organization
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?
We use the open-source version of Loki. The cloud version is competitively priced compared to other market solutions.
What needs improvement with Grafana Loki?
It would be beneficial if Loki could directly access Windows Server logs or events directly from the servers.
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?
We are using the free version of the product. However, the paid version is expensive.
What needs improvement with Graylog?
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. P...
 

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: April 2025.
848,716 professionals have used our research since 2012.