compare
Fluent Bit vs Logstash
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Fluent Bit | Logstash |
|---|---|---|
| Language | C | Java |
| Licence | Apache-2.0 | Other |
| Stars | 8.1k | 15k |
| Latest | v5.1.3 | v9.5.5 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 15 days between releases | about 4 days between releases |
| Active contributors | 30+ commit authors on the default branch in the last 90 days | 16 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Fluent Bit replaces Logstash. Alternatives to Logstash →
Full replacementLightweight agent in C, built for nodes and edge devices.
Fluent Bit
Fluent Bit
unsigned The latest release, v5.1.3, carries no signature GitHub could verify.
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Logstash
✓ signed The latest release, v9.5.5, carries a signature GitHub verified.
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