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Fluent Bit vs OpenTelemetry Collector

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Fluent BitOpenTelemetry Collector
LanguageCGo
LicenceApache-2.0Apache-2.0
Stars8.1k7.6k
Latestv5.1.3v0.162.0
Last push2026-10-062026-10-06
Release cadenceabout 15 days between releasesabout 13 days between releases
Active contributors30+ commit authors on the default branch in the last 90 days66 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Fluentd. Alternatives to Fluentd →

    Full replacementFluent BitFrom the same project, written in C with a much smaller footprint.

    PartialOpenTelemetry CollectorReceives, processes and exports logs, metrics and traces in the OpenTelemetry format.

  • Both replace Logstash. Alternatives to Logstash →

    Full replacementFluent BitLightweight agent in C, built for nodes and edge devices.

    PartialOpenTelemetry CollectorReceives, processes and exports logs, metrics and traces in the OpenTelemetry format.