Fluent Bit vs Apache SkyWalking
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Fluent Bit
Lightweight and fast logs and metrics processor
VS
Apache SkyWalking
APM and observability for cloud-native architectures
| Feature | Fluent Bit | Apache SkyWalking |
|---|---|---|
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | Apache-2.0 |
| Language | C | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 32 MB | 2,048 MB |
| Deployment | docker, kubernetes, binary | docker, kubernetes, helm |
| GitHub stars | ★ 8,020 | ★ 24,915 |
| First released | 2015 | 2015 |
| Replaces | Logstash | New Relic, Datadog |
Why pick each one
Choose Apache SkyWalking if…
- Full observability suite
- Strong Apache governance
Frequently asked questions
Is Fluent Bit or Apache SkyWalking better?
Neither is universally better. Apache SkyWalking has the larger community, while Fluent Bit is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Fluent Bit and Apache SkyWalking free and open-source?
Yes. Fluent Bit is licensed under Apache-2.0 and Apache SkyWalking under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Fluent Bit and Apache SkyWalking with Docker?
Fluent Bit: yes. Apache SkyWalking: yes.