head to head · open source
Airbyte vs fluvio
Airbyte has 22,082 GitHub stars, 5,350 forks, 2,395 open issues and last shipped yesterday. fluvio has 5,256 stars, 530 forks, 139 open issues and last shipped 19 days ago. Airbyte leads on adoption by 320% (22,082 vs 5,256 stars). Airbyte is written in Python under a custom or non-standard licence; fluvio is written in Rust under Apache-2.0. Airbyte has attracted 24% as many forks as stars, fluvio 10%. Airbyte was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (data-integration), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Airbyte | fluvio | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 5.3K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Rust |
| Last push | 2026-09-17 | 2026-08-30 |
| Forks | ⑂ 5.3K | ⑂ 530 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Airbyte if
- You weight community size — 22K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick fluvio if
- You want the fluvio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and fluvio fits your workflow better
About Airbyte
Airbyte open source data movement project. It lives in data engineering and data integration ecosystem. It moves data from APIs, databases, and files into warehouses, data lakes, and AI applications. It supports ELT and ETL pipelines. It also supports AI agents needing business data.
read the full Airbyte overview →
About fluvio
Fluvio is a distributed data streaming engine written in Rust, distributed under the Apache 2.0 license and developed in the fluvio community repository. It is described as composable, declarative and stateful: a streaming runtime that pairs with Stateful DataFlow, a distributed stream processing framework, so that a single system covers both the transport of event streams and the transformation of that data while it is in motion. The project sits in the Rust and cloud native ecosystem and is published on crates.io, with documentation hosted at fluvio.io.
read the full fluvio overview →
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Frequently asked questions
Is Airbyte or fluvio more popular?
Airbyte has 22,082 GitHub stars and fluvio has 5,256. Airbyte has the larger community by that measure.
Are Airbyte and fluvio free?
Both are open source. Airbyte has no licence declared in this registry, and fluvio is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Airbyte and fluvio?
Airbyte is written in Python and fluvio in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Airbyte or fluvio?
Choose Airbyte if you want the larger community (22,082 stars) or its Custom / other licence terms. Choose fluvio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.