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Graylog vs Seq: What are the differences?


Graylog and Seq are both log management tools that help collect, monitor, and analyze log data in real-time. While they serve similar purposes, there are key differences between these two tools that set them apart.

  1. Data Storage: One of the key differences between Graylog and Seq is the way they handle data storage. Graylog uses Elasticsearch as its default data store, which allows for high scalability and performance. On the other hand, Seq stores log data in structured text files and uses column-based indexing, resulting in fast searches and minimal storage requirements.

  2. Querying and Filtering Capabilities: Graylog offers a powerful search and filter functionality, allowing users to search for specific logs based on various parameters like time range, source, severity, or custom fields. It supports complex queries and provides advanced filtering options. In contrast, Seq focuses more on structured logging and provides a simpler query and filter interface, focusing on events and properties rather than complex queries.

  3. Alerting and Notifications: Graylog provides robust alerting capabilities, allowing users to set up rules and conditions to trigger notifications based on log message content, severity, or other criteria. It provides multiple notification options such as email, Slack, or custom webhooks. On the other hand, Seq focuses more on providing a centralized view of log data and does not have built-in alerting functionality. However, it integrates well with existing monitoring and notification systems.

  4. Log Enrichment and Pipelines: Graylog offers log enrichment capabilities by allowing users to enrich log data with additional contextual information from external sources such as databases or APIs. It also supports pipelines, which enable users to extract, transform, and manipulate log data before storing or forwarding it. Seq, on the other hand, does not provide built-in log enrichment or pipeline functionality.

  5. User Interface and Visualization: Graylog provides a web-based user interface that offers a comprehensive view of log data with extensive visualization options such as dashboards, charts, and graphs. It allows users to create custom visualizations and provides a flexible and intuitive interface for log analysis. Seq, on the other hand, focuses more on providing a streamlined and minimalistic user interface with a focus on log exploration and analysis.

  6. Community and Open Source: Graylog is open source, which means it is actively developed by a community of contributors and has a large user base. It benefits from community-driven improvements and has an active community forum for support and discussions. Seq, on the other hand, is a commercial product with a smaller user base and relies on its own development team for updates and support.

In summary, Graylog provides a scalable and feature-rich log management solution with advanced querying, alerting, and visualization capabilities. It offers log enrichment and pipeline functionality, making it suitable for complex log analysis workflows. On the other hand, Seq focuses on structured logging with a simplified querying interface and a minimalistic user interface. It integrates well with existing monitoring and notification systems but does not provide built-in log enrichment or pipeline features.

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Pros of Graylog
Pros of Seq
  • 19
    Open source
  • 13
  • 8
    Well documented
  • 6
  • 5
    User authentification
  • 5
    Flexibel query and parsing language
  • 3
    User management
  • 3
    Easy query language and english parsing
  • 3
    Alerts and dashboards
  • 2
    Easy to install
  • 1
    A large community
  • 1
    Manage users and permissions
  • 1
    Free Version
  • 5
    Easy to install and configure
  • 5
    Easy to use
  • 3
    Flexible query language
  • 2
    Free unlimited one-person version
  • 2
    Beautiful charts and dashboards
  • 2
    Extensive plug-ins and integrations

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Cons of Graylog
Cons of Seq
  • 1
    Does not handle frozen indices at all
  • 1
    It is not free

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What is Graylog?

Centralize and aggregate all your log files for 100% visibility. Use our powerful query language to search through terabytes of log data to discover and analyze important information.

What is Seq?

Seq is a self-hosted server for structured log search, analysis, and alerting. It can be hosted on Windows or Linux/Docker, and has integrations for most popular structured logging libraries.

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What companies use Graylog?
What companies use Seq?
See which teams inside your own company are using Graylog or Seq.
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What are some alternatives to Graylog and Seq?
It provides the leading platform for Operational Intelligence. Customers use it to search, monitor, analyze and visualize machine data.
Logstash is a tool for managing events and logs. You can use it to collect logs, parse them, and store them for later use (like, for searching). If you store them in Elasticsearch, you can view and analyze them with Kibana.
It is a SaaS solution to manage your log data. There is nothing to install and updates are automatically applied to your Loggly subdomain.
Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elasticsearch.
Elasticsearch is a distributed, RESTful search and analytics engine capable of storing data and searching it in near real time. Elasticsearch, Kibana, Beats and Logstash are the Elastic Stack (sometimes called the ELK Stack).
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