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  1. Home
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  3. Graylog
Logo of Graylog

Graylog

byGraylog
in Security Information and Event Management
4.5

Overview

Product Information on Graylog

Updated 14th February 2024

What is Graylog?

Graylog helps IT and security professionals detect and resolve performance and security issues and removes complexity from data exploration, threat hunting, and compliance audits. Graylog’s powerful search, data routing, asset risk prioritization, machine learning, built-in SOAR capabilities, UEBA anomaly detection, and AI-assisted investigation tools streamline workflows, reduce alert fatigue, and optimize security operations.

Graylog Pricing

Graylog Open is a free open source product, while both Graylog Operations and Graylog Security are priced based on log ingestion.

Graylog Product Images

Graylog - UEBA Anomaly Detection
Graylog - UEBA Anomaly Detection
Graylog - Threat Coverage
Graylog - Threat Coverage
Graylog - Potential Phishing Attack
Graylog - Potential Phishing Attack

Overall experience with Graylog

Vp, Engineering
<50M USD, IT Services
FAVORABLE

“Graylog Simplifies Centralized Log Management and Troubleshooting Across Multiple Servers”

4.0
Jan 20, 2026
We have been using Graylog Community edition since 2018. Since then our experience with Graylog has been excellent. It has significantly simplified the process of monitoring and analyzing logs across multiple servers. The intuitive interface and powerful search capabilities make troubleshooting and log analysis faster and more efficient. For example, we use Graylog to keep track of all Active Directory changes and replaced our old fashioned email reports. Also, determining the source of an account lockout has never been easier. Which saves us a lot of time compared to diving into log files on our several domain controllers on different sites. We even created a PowerShell script that calls the Graylog API to get the results even faster. We currently stream logs from Cisco Switches, Routers, ASA, FTD and ISE as well as our Microsoft Print server and VMWare ESXi nodes. Key highlights for us are: - Centralized Log Management: View logs from different servers and appliances. - Dashboards and metrics: The dashboards provide real-time insights into critical metrics, such as Active Directory logins for service accounts. This helps us stay proactive and maintain security compliance like ISO 27001 and NIS2. - Error resolution: Graylog has been instrumental in diagnosing and resolving transient errors when querying AD in various PowerShell Scripts. This has improved the reliability of our automation processes. - Log forwarder to our SIEM: Since our externally managed SIEM does not require all logs generated by our firewalls (FTD/ASA), we use Graylog to selectively filter and forward only the security-relevant messages to our SOC. We highly recommend it for organizations seeking a centralized and scalable logging solution.
Director
Gov't/PS/ED <5,000 Employees, Government
CRITICAL

“Difficult Set-Up Challenges with Product Implementation”

3.0
Apr 16, 2025
Setup is difficult. Team was not readily available to assist.

About Company

Company Description

Updated 5th February 2025

Deployed in over 50,000 installations worldwide, Graylog captures, stores, and analyzes terabytes of machine data in real-time to detect threats faster, investigate issues efficiently, and simplify compliance—without drowning in noise. Graylog delivers an affordable, flexible architecture that meets the evolving needs of IT and security teams—whether hosted by us, on-premises, or in your cloud. Started as an open-source project, it has grown into a platform offering SIEM, API Security, and Enterprise Log Management with built-in SOAR capabilities to automate and accelerate response. Graylog’s machine learning, real-time monitoring, and AI-assisted investigation tools streamline workflows, reduce alert fatigue, and optimize security operations. With a vision of a secure digital world, we provide threat detection and response that delivers a strong analyst experience while maintaining cost efficiency, ensuring organizations stay ahead of ever-evolving cyber threats.

Company Details

Updated 26th February 2025
Company type
Private
Year Founded
2009
Head office location
Houston, United States
Number of employees
100 - 499
Annual Revenue
<50M USD
Website
https://graylog.com

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Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About Graylog
Reviewer Insights for: Graylog
Deciding Factors: Graylog Vs. Market Average
Performance of Graylog Across Market Features

Graylog Likes & Dislikes

Like

- Creating Dashboards based on filters is great and easy. It's no different than filtering day-to-day tasks. - Powerful search and filtering. - Versatility in OS/Vendor support. - There is a community version available.

Like

Does a good job of collecting logs.

Like

- The modularity in inputs, outputs, and processing - The fact that it is free and open source and the non-enterprise version is actually good.

Dislike

You cannot create a read-only user for dashboarding on our TV that displays the system overview: - Indices problems - Graylog outdated version view - System messages

Dislike

Setup is difficult.

Dislike

- Setting up the correct parsing & processing of new types of logs requires some time & knowledge. Without prior knowledge it is daunting to learn about input extractors with grok patterns, streams and pipelines with the pipeline rules DSL and on top of that you also need to understand the Graylog search syntax. - Due to the nature of Elasticsearch/Opensearch modifying or deleting logs is complicated, and field types can only be changed by rotating the index

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Peer Discussions

Graylog Reviews and Ratings

4.5

(256 Ratings)

Rating Distribution

5 Star
46%
4 Star
48%
3 Star
6%
2 Star
0%
1 Star
0%
Why ratings and reviews count differ?

Customer Experience

Evaluation & Contracting

4.4

Integration & Deployment

4.4

Service & Support

4.4

Product Capabilities

4.5

Filter Reviews
Sort By:
Most helpful
Last 12 Months
Star Rating
Reviewer Type
Reviewer's Company Size
Reviewer's Industry
Reviewer's Region
Reviewer's Job Function
  • Vp, Engineering
    <50M USD
    IT Services
    Review Source

    Graylog Simplifies Centralized Log Management and Troubleshooting Across Multiple Servers

    4.0
    Jan 20, 2026
    We have been using Graylog Community edition since 2018. Since then our experience with Graylog has been excellent. It has significantly simplified the process of monitoring and analyzing logs across multiple servers. The intuitive interface and powerful search capabilities make troubleshooting and log analysis faster and more efficient. For example, we use Graylog to keep track of all Active Directory changes and replaced our old fashioned email reports. Also, determining the source of an account lockout has never been easier. Which saves us a lot of time compared to diving into log files on our several domain controllers on different sites. We even created a PowerShell script that calls the Graylog API to get the results even faster. We currently stream logs from Cisco Switches, Routers, ASA, FTD and ISE as well as our Microsoft Print server and VMWare ESXi nodes. Key highlights for us are: - Centralized Log Management: View logs from different servers and appliances. - Dashboards and metrics: The dashboards provide real-time insights into critical metrics, such as Active Directory logins for service accounts. This helps us stay proactive and maintain security compliance like ISO 27001 and NIS2. - Error resolution: Graylog has been instrumental in diagnosing and resolving transient errors when querying AD in various PowerShell Scripts. This has improved the reliability of our automation processes. - Log forwarder to our SIEM: Since our externally managed SIEM does not require all logs generated by our firewalls (FTD/ASA), we use Graylog to selectively filter and forward only the security-relevant messages to our SOC. We highly recommend it for organizations seeking a centralized and scalable logging solution.
  • It Associate
    <50M USD
    Software
    Review Source

    Graylog Offers Effective Log Aggregation, But Has Steep Configuration Learning Curve

    4.0
    Feb 18, 2026
    Graylog is a nice service to gather & aggregate relatively large amounts of logs for debugging, operational, and security purposes. In my experience, Graylog works well for this. I wouldn't recommend it (the free version) however to people looking for a plug&play SIEM in a box. For instance: while it is possible to configure dashboards and alerts, it doesn't know about vulnerabilities out of the box. Graylog has nice visualization options, but these have their limits. If you want to make advanced dashboards you might want to combine it with an external graphing tool. This is also advisable if you want to combine logs & metric data: while you can store metrics in Graylog, I wouldn't recommend it and instead limit Graylog to actual logs. It does use its own query language, but this isn't too complicated and the web interface makes it easy to build a query by including and excluding properties of shown logs, without having to know the query language by heart.
  • IT Associate
    <50M USD
    IT Services
    Review Source

    Graylog Offers Minimal Maintenance and Quick Data Access After Initial Setup

    5.0
    Jan 23, 2026
    Graylog is easy to set up and has ample documentation with broad explanation what each setting means. Once set up the maintenance work is minimal. It's easy to use, digging through TiB's amount of data within a few seconds. The dashboarding can be set up quickly without fiddling with 1000s of parameters. Even when you forget to expand your disks the entire application doesn't break down completely and can be repaired pretty easily with minimal data loss.
  • IT Associate
    Gov't/PS/Ed
    Education
    Review Source

    Graylog Does What It Says on the Tin Very Well, But Not Much Else (And That's Fine)

    4.0
    Jan 5, 2026
    As an interface, Graylog works well. It is not designed for any serious analytics of those logs, but as an aggregation service, does fine. You just have to know what you can and cannot do with the product. Implementation and upgrades are somewhat tricky, as there are several, semi-documented steps you have to unravel, and some errors are opaque, with your only support being old community forum posts that don't apply to you.
  • IT Security Engineer
    <50M USD
    Healthcare and Biotech
    Review Source

    Graylog: A High-Performing Log Management Solution with Minor Flaws

    5.0
    Feb 5, 2026
    We've had Graylog now for a couple of months and we really like the product. It has a lot of possibilities and capabilities and is very easy to set up and maintain. The web interface is intuitive and highly customizable.
...
Showing Result 1-5 of 260

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