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Grafana Loki vs syslog-ng 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
4th
Average Rating
8.2
Reviews Sentiment
7.8
Number of Reviews
18
Ranking in other categories
No ranking in other categories
syslog-ng
Ranking in Log Management
17th
Average Rating
8.8
Reviews Sentiment
2.8
Number of Reviews
7
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 syslog-ng is 2.5%, down from 2.8% 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.
RyanVargas - PeerSpot reviewer
It's a user-friendly open-source solution that can replace or augment a commercial product in some cases
I rate syslog-ng 10 out of 10. It's free and easy to use. It has built-in tools that help us index the various logs sent to it. It's a solid log product. If you're looking for a SIEM solution, syslog-ng will work as a stopgap measure at beginning of the project. It can also work as an injector for a true SIEM solution. You can send all the logs to syslog-ng and forward all the data to the SIEM solution after you've cleaned up the data and got the pertinent information. It's a good front end for a commercial SIEM solution, which becomes more expensive as you load more data into it. I would highly recommend syslog-ng for that use case. However, if you lack the expertise, you might need to go with a cloud-based SIEM instead. You need some in-house expertise or an outside consultant to manage it and set it up.

Quotes from Members

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

Pros

"The best feature of Grafana Loki is that it integrates well with our other tool."
"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 most valuable part of Loki is the ability to filter logs by keywords and devices."
"The most valuable feature of the solution is the tool's GUI. The solution's GUI is very user-friendly."
"The most valuable feature is the capability to set up alerts, which becomes necessary when we need to receive notifications for specific events."
"We are using Grafana Loki as a database for real-time metrics."
"Grafana agent is very lightweight and does not cost significant resources of our cluster."
"Different types of integrations with various sources are the most helpful and useful features of Grafana Loki that I found for myself."
"Syslog-ng has built-in features that we can use to create alerts for a SIEM solution. It isn't a true SIEM solution, but it's sufficient for the time being."
"The ability to extract and store the logs is the most valuable feature of syslog-ng."
"Syslog-ng provides easy access to all my logs. It helps me show managers and other clients precisely where an incident occurred. I also like it because you can integrate syslog-ng with multiple solutions to allow real-time monitoring."
"Syslog-ng has a separate config file in addition to the core configuration."
"For us, the most valuable feature is the use of compound search for searching logs at a specific time, by a specific user, or specific behavior."
 

Cons

"The solution's scalability depends on the team managing the Grafana instance."
"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."
"In Grafana Loki, the creation of metrics is not so easy, making it an area that could be made easier."
"We face some bugs when we install the latest version of Grafana Loki."
"I do not see any areas for improvement at the moment."
"The correlation of requests is not simple in Grafana Loki and can be improved."
"The platform's stability needs improvement."
"Enhancing speed could be a game-changer, and while it might vary depending on the application, it's a factor worth exploring."
"It's hard to find people who know how to use syslog-ng. I often find problems with configurations, and solutions aren't integrated correctly with syslog-ng. For example, there might be data with extra decimals, or the collector agents are incorrectly named. It isn't a problem with the solution; it's a lack of professionals."
"Syslog-ng has built-in features that we can use to create alerts for a SIEM solution. It isn't a true SIEM solution, but it's sufficient for the time being."
"The filtering has room for improvement."
"There is always the potential for additional integration and protocol extensions."
"There is room for improvement in terms of observability."
 

Pricing and Cost Advice

"The solution is open source."
"I use the open-source version of the product."
"We use a free version."
"Grafana Loki is a free, open-source solution."
"The pricing structure varies based on the number of users; there might be specific taxes to pay for it."
"I use the solution's open-source version. Grafana Loki is a completely free solution for me."
"My company doesn't need to pay for the licensing cost of the solution."
"Grafana Loki is an open-source solution."
"Syslog-ng is a free open-source solution."
"Syslog-ng is open-source."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
10%
Comms Service Provider
9%
Manufacturing Company
8%
Government
13%
Computer Software Company
12%
Financial Services Firm
8%
Manufacturing Company
8%
 

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 syslog-ng?
For us, the most valuable feature is the use of compound search for searching logs at a specific time, by a specific user, or specific behavior.
What is your experience regarding pricing and costs for syslog-ng?
The pricing is in the middle. I would rate the pricing a six out of ten, with one being expensive and ten being cheap.
What needs improvement with syslog-ng?
There is room for improvement in terms of observability. Additionally, a possible new feature could be Kafka integration.
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Tecnocom, University of Victoria, University of Exeter, Datapath
Find out what your peers are saying about Grafana Loki vs. syslog-ng and other solutions. Updated: June 2025.
860,592 professionals have used our research since 2012.