Fluentd

An open-source data collector that gathers logs from many sources and routes them to storage backends.

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About Fluentd

Fluentd is a log and data collector that sits between the systems producing data and the backends that store or analyse it. By acting as a unified logging layer, it lets you change where data comes from or where it goes without rewiring every application.

Its core is kept small, while more than 500 plugins connect it to data sources and outputs. It ships as part of fluent-package, and the project publishes security advisories and patch releases. Commercial support is available from third-party companies.

Strengths

  • More than 500 plugins for inputs and outputs
  • Decouples log sources from storage backends
  • Active security advisories and patch releases

Limitations

  • Aimed at server infrastructure rather than a single desktop
  • Needs configuration and plugins chosen for each setup

Details

Pricing
FreeFree and open source; commercial support is sold separately by other companies.
License
Open source, license not stated
Developer
The Fluentd contributors
Platforms
Self-hosted
How it runs
Self-hosted
Account
Not required
Best suited for
Teams collecting and routing logs from many servers and applications
Last verified
Added
Provenance
Facts checked against the developer's own pages and store listings, 1 sources on file.

Alternatives to Fluentd

Compare all

Software that can replace Fluentd for an important use case, and what changes if you switch.

  • Fluent Bit

    Lightweight agent that collects, processes and forwards logs, metrics and traces.

    Fluent Bit is a lighter agent with a smaller footprint that handles logs, metrics and traces in one pipeline with native OpenTelemetry support.

  • Grafana Alloy

    An open-source telemetry collector from Grafana Labs that gathers and forwards logs, metrics and traces.

    Grafana Alloy collects and forwards logs and other telemetry, fitting directly into a Loki and Grafana stack instead of routing to many backends.

  • OpenTelemetry Collector

    Receive, process and export telemetry through a vendor-neutral collector.

    OpenTelemetry Collector is a vendor-neutral collector that processes traces, metrics and logs, and runs on Linux, Windows and macOS.

  • Telegraf

    Collect and forward metrics using a configurable server agent.

    Telegraf is a plugin-based agent that concentrates on metrics collection and forwarding rather than routing logs to storage backends.

Similar software

Related functionality, not necessarily a direct replacement.

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