https://github.com/fluent/fluent-bit-docs

Fluent Bit - Official Documentation
https://github.com/fluent/fluent-bit-docs

Last synced: 8 months ago
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Fluent Bit - Official Documentation

• Host: GitHub
• URL: https://github.com/fluent/fluent-bit-docs
• Owner: fluent
• Created: 2016-05-23T01:32:58.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2025-07-03T21:19:21.000Z (8 months ago)
• Last Synced: 2025-07-03T22:25:21.388Z (8 months ago)
• Language: Shell
• Homepage: https://docs.fluentbit.io
• Size: 25.4 MB
• Stars: 140
• Watchers: 19
• Forks: 523
• Open Issues: 74
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • Codeowners: CODEOWNERS

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README

          
---

description: High Performance Telemetry Agent for Logs, Metrics and Traces

---

# Fluent Bit documentation



[Fluent Bit](http://fluentbit.io) is a fast and lightweight telemetry agent for logs, metrics, and traces for Linux, macOS, Windows, and BSD family operating systems. Fluent Bit has been made with a strong focus on performance to allow the collection and processing of telemetry data from different sources without complexity.![](https://static.scarf.sh/a.png?x-pxid=71f0e011-761f-4c6f-9a89-38817887faae)

## Features

- High performance: High throughput with low resources consumption

- Data parsing

  - Convert your unstructured messages using Fluent Bit parsers: [JSON](pipeline/parsers/json.md), [Regex](pipeline/parsers/regular-expression.md), [LTSV](pipeline/parsers/ltsv.md) and [Logfmt](pipeline/parsers/logfmt.md)

- Metrics support: Prometheus and OpenTelemetry compatible

- Reliability and data integrity

  - [Backpressure](administration/backpressure.md) handling

  - [Data buffering](administration/buffering-and-storage.md) in memory and file system

- Networking

  - Security: Built-in TLS/SSL support

  - Asynchronous I/O

- Pluggable architecture and [extensibility](development/library_api.md): Inputs, Filters and Outputs:

  - Connect nearly any source to nearly any destination using preexisting plugins

  - Extensibility:

    - Write input, filter, or output plugins in the C language

    - WASM: [WASM Filter Plugins](development/wasm-filter-plugins.md) or [WASM Input Plugins](development/wasm-input-plugins.md)

    - Write [Filters in Lua](pipeline/filters/lua.md) or [Output plugins in Golang](development/golang-output-plugins.md)

- [Monitoring](administration/monitoring.md): Expose internal metrics over HTTP in JSON and [Prometheus](https://prometheus.io/) format

- [Stream Processing](stream-processing/introduction.md): Perform data selection and transformation using simple SQL queries

  - Create new streams of data using query results

  - Aggregation windows

  - Data analysis and prediction: Time series forecasting

- Portable: Runs on Linux, macOS, Windows and BSD systems

### Release notes

For more details about changes in each release, refer to the [official release notes](https://fluentbit.io/announcements/).

## Fluent Bit, Fluentd, and CNCF

[Fluent Bit](http://fluentbit.io) is a [CNCF](https://cncf.io) graduated sub-project under the umbrella of [Fluentd](http://fluentd.org). Fluent Bit is licensed under the terms of the [Apache License v2.0](http://www.apache.org/licenses/LICENSE-2.0).

Fluent Bit was originally created by [Eduardo Silva](https://www.linkedin.com/in/edsiper/) and is now sponsored by [Chronosphere](https://chronosphere.io/). As a CNCF-hosted project, it's a fully vendor-neutral and community-driven project.