Version1.5.7
Revision17
Size10.3 MB
LicenseApache-2.0
Confinementstrict
Basecore18

High performance logs and stream processor

ScreenshotScreenshot

Fluent Bit is a high-performance log processor and stream processor for Linux, BSD-family, and Windows Operating systems.

Nowadays the number of sources of information in our environments is ever increasing. Handling data collection at scale is complex, and collecting and aggregating diverse data requires a specialized tool that can deal with:

- Different sources of information
- Different data formats
- Data Reliability
- Security
- Flexible Routing
- Multiple destinations

Fluent Bit provides a flexible and pluggable architecture to collect, enrich, and deliver logs or metrics to multiple databases or cloud providers.

- Input Source of Data
- [Tail / Files](https://docs.fluentbit.io/manual/pipeline/inputs/tail)
- [Systemd](https://docs.fluentbit.io/manual/pipeline/inputs/systemd)
- [Syslog](https://docs.fluentbit.io/manual/pipeline/inputs/syslog)
- [Serial Interface](https://docs.fluentbit.io/manual/pipeline/inputs/serial-interface)
- [MQTT](https://docs.fluentbit.io/manual/pipeline/inputs/mqtt)
- [Kernel Log Messages](https://docs.fluentbit.io/manual/pipeline/inputs/kernel-logs)
- [Windows Event Log](https://docs.fluentbit.io/manual/pipeline/inputs/windows-event-log)
- Metrics: [CPU](https://docs.fluentbit.io/manual/pipeline/inputs/cpu-metrics), [Disk I/O](https://docs.fluentbit.io/manual/pipeline/inputs/disk-io-metrics), [Network I/O](https://docs.fluentbit.io/manual/pipeline/inputs/network-io-metrics), [Memory](https://docs.fluentbit.io/manual/pipeline/inputs/memory-metrics)
- others...

- Filters for data enrichment and modification
- [AWS](https://docs.fluentbit.io/manual/pipeline/filters/aws-metadata)
- [Kubernetes](https://docs.fluentbit.io/manual/pipeline/filters/kubernetes)
- [Lua Scripts](https://docs.fluentbit.io/manual/pipeline/filters/lua)
- [Parser](https://docs.fluentbit.io/manual/pipeline/filters/parser)
- [Record Modifier](https://docs.fluentbit.io/manual/pipeline/filters/record-modifier)
- [Rewrite Tag](https://docs.fluentbit.io/manual/pipeline/filters/rewrite-tag)
- others...

- Output Destinations
- [Azure Log Analytics](https://docs.fluentbit.io/manual/pipeline/outputs/azure)
- [Google BigQuery](https://docs.fluentbit.io/manual/pipeline/outputs/bigquery)
- [Datadog](https://docs.fluentbit.io/manual/pipeline/outputs/datadog)
- [Elasticsearch](https://docs.fluentbit.io/manual/pipeline/outputs/elasticsearch)
- [Forward (Fluentd)](https://docs.fluentbit.io/manual/pipeline/outputs/forward)
- [Gelf / Graylog](https://docs.fluentbit.io/manual/pipeline/outputs/gelf)
- [HTTP](https://docs.fluentbit.io/manual/pipeline/outputs/http)
- [InfluxDB](https://docs.fluentbit.io/manual/pipeline/outputs/influxdb)
- [Kafka](https://docs.fluentbit.io/manual/pipeline/outputs/kafka)
- [PostgreSQL](https://docs.fluentbit.io/manual/pipeline/outputs/postgresql)
- others...

With Fluent Bit, you can read any source of data, process it, and deliver it to your preferred storage service.

_Performance and Low Resource Usage

Fluent Bit is written in C language and has been designed for optimal performance with low resource usage.

Process thousands of events, save memory and CPU cycles.

Fluent Bit and CNCF_

[Fluent Bit](https://fluentbit.io) is a [Cloud Native Computing Foundation](https://cncf.io) (CNCF) project under the umbrella of [Fluentd](https://www.fluentd.org).

Update History

1.5.7 (17)
13 Dec 2025, 09:47 UTC

Published25 Feb 2020, 16:32 UTC

Last updated25 Sept 2020, 21:56 UTC

First seen13 Dec 2025, 09:47 UTC