Fluent Bit v3.0 Documentation

High Performance Telemetry Agent for Logs, Metrics and Traces


  • High Performance: High throughput with low resources consumption

  • Data Parsing

  • Metrics Support: Prometheus and OpenTelemetry compatible

  • Reliability and Data Integrity

  • Networking

    • Security: built-in TLS/SSL support

    • Asynchronous I/O

  • Pluggable Architecture and Extensibility: Inputs, Filters and Outputs

  • Monitoring: expose internal metrics over HTTP in JSON and Prometheus format

  • Stream Processing: Perform data selection and transformation using simple SQL queries

    • Create new streams of data using query results

    • Aggregation Windows

    • Data analysis and prediction: Timeseries forecasting

  • Portable: runs on Linux, macOS, Windows and BSD systems

Fluent Bit, Fluentd and CNCF

Fluent Bit is a CNCF graduated sub-project under the umbrella of Fluentd. Fluent Bit is licensed under the terms of the Apache License v2.0.

Fluent Bit was originally created by Eduardo Silva. As a CNCF-hosted project, it is a fully vendor-neutral and community-driven project.

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