Graylog vs Mezmo comparison

Graylog and Mezmo are both solutions in the Log Management category. Graylog is ranked #15 with an average rating of 7.0, while Mezmo is ranked #54. Graylog holds a 6.5% mindshare in Log Management, compared to Mezmo’s 0.2% mindshare. Additionally, 95% of Graylog users are willing to recommend the solution, compared to 100% of Mezmo users who would recommend it.

Graylog

Read 21 Graylog reviews

9,223 Views
9,223 Comparison Views

95% willing to recommend

Mezmo

Read 2 Mezmo reviews

494 Views
440 Comparison Views

100% willing to recommend

Graylog

Mezmo

Comparison Buyer's Guide

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Executive SummaryUpdated on Apr 27, 2025

Graylog and Mezmo are competing products in the log management and SIEM landscape. Graylog seems to have the upper hand in pricing and support, whereas Mezmo offers more comprehensive features for deeper insights.

Features: Graylog offers powerful search, real-time alerting, and customizable log processing. Mezmo provides advanced analytics, data visualization options, and interaction with large data sets.

Ease of Deployment and Customer Service: Graylog offers flexible deployment with on-premises and cloud options, supported by an active open-source community. Mezmo streamlines deployment with its cloud-first model and robust customer service infrastructure.

Pricing and ROI: Graylog is known for cost-effectiveness and favorable ROI, especially for businesses familiar with open-source systems. Mezmo, with potentially higher costs due to its features, often justifies the investment through enhanced operational efficiency and decision-making.

To learn more, read our detailed Graylog vs. Mezmo Report (Updated: June 2025).

Buyer's Guide

Graylog vs. Mezmo

June 2025

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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

Graylog

Ranking in Log Management

15th

Average Rating

8.0

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

No ranking in other categories

Mezmo

Ranking in Log Management

54th

Average Rating

9.0

Number of Reviews

Ranking in other categories

Application Performance Monitoring (APM) and Observability (89th), Observability Pipeline Software (7th)

Mindshare comparison

As of July 2025, in the Log Management category, the mindshare of Graylog is 6.5%, up from 5.9% compared to the previous year. The mindshare of Mezmo is 0.2%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Log Management

Featured Reviews

Ivan Kokalovic

DevOps Engineer at Proton Technologies

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.

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Theodore Omtzigt

President and Founder at STILLWATER SUPERCOMPUTING INC

It consolidates all logs into one place and provides required features and functionalities

Every once in a while, our IBM cloud operational implementation gets behind. Sometimes, when we have a customer event, we do not get access to the latest logs for about 30 minutes, particularly for the sites that are heavily utilized. This is clearly not good. It is impossible to do RCA when you can't look at the logs that pertain to the time period in which the event occurred. It could be more of an operational problem than a feature problem. I don't have visibility about whether it is a LogDNA issue or just an operational issue.

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Quotes from Members

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

Pros

"The solution's most valuable feature is its new interface."

"Graylog is very handy."

"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."

"What I like about Graylog is that it's real-time and you have access to the raw data. So, you ingest it, and you have access to every message and every data item you ingest. You can then build analytics on top of that. You can look at the raw data, and you can do some volumetric estimations, such as how big traffic you have, how many messages of data of a type you have, etc."

"I like the correlation and the alerting."

"One of the most valuable features is that you are able to do a very detailed search through the log messages in the overview."

"The build is stable and requires little maintenance, even compared to some extremely expensive products."

"It has data adapters and lookup tables that utilize HTTP calls to APIs."

More Graylog pros

"LogDNA consolidates all logs into one place, which is super valuable."

"The solution aggregates all event streams, so that if there are any issues, it's all in the same interface."

Cons

"More customization is always useful."

"I would like to see a default dashboard widget that shows the topology of the clusters defined for the graylog install."

"Its scalability gets complicated when we have to update or edit multiple nodes."

"There should be some user groups and an auto sign-in feature."

"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."

"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."

"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-"

More Graylog cons

"Every once in a while, our IBM cloud operational implementation gets behind. Sometimes, when we have a customer event, we do not get access to the latest logs for about 30 minutes, particularly for the sites that are heavily utilized. This is clearly not good. It is impossible to RCA when you can't look at the logs that pertain to the time period in which the event occurred. It could be more of an operational problem than a feature problem. I don't have visibility about whether it is a LogDNA issue or just an operational issue."

"No ability to encapsulate a query or a filter, and communicate or share that among the team."

Pricing and Cost Advice

"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."

"We are using the free version of the product. However, the paid version is expensive."

"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."

"It's an open-source solution that can be used free of charge."

"Consider Enterprise support if you have atypical needs or setup requirements."

"We're using the Community edition."

"I am using a community edition. I have not looked at the enterprise offering from Graylog."

"If you want something that works and do not have the money for Splunk or QRadar, take Graylog."

More Graylog pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Computer Software Company

17%

Comms Service Provider

10%

Government

University

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What do you like most about Graylog?

The product is scalable. The solution is stable.

See all answers

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...

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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 ...

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Also Known As

Graylog2

LogDNA

Overview

Graylog is purpose-built to deliver the best log collection, storage, enrichment, and analysis. Graylog is:

Considerably faster analysis speeds.
More robust and easier-to-use analysis platform.
Simpler administration and infrastructure management.
Lower cost than alternatives.
Full-scale customer service.
No expensive training or tool experts required.

Graylog

Today’s enterprises must manage a massive amount of machine data. They require a platform that enables engineering teams to deliberately route and store structured and unstructured data for different teams with unique use cases. Legacy platforms weren’t made for this moment.
‍
Mezmo, formerly LogDNA, lets organizations ingest, process, route, analyze, and store all of their log data. Purpose-built for modern engineering teams—including developers, SREs, IT Operations, and Security Engineers—the Mezmo platform is trusted by thousands of companies for SaaS, cloud, and hybrid applications.

Mezmo

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur

Instacart, Asics, Lime, Salesforce

Buyer's Guide

Graylog vs. Mezmo

June 2025

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