head to head · open source
CloudQuery vs fluvio
CloudQuery has 6,521 GitHub stars, 558 forks, 166 open issues and last shipped 2 days ago. fluvio has 5,257 stars, 530 forks, 139 open issues and last shipped 21 days ago. CloudQuery leads on adoption by 24% (6,521 vs 5,257 stars). CloudQuery is written in Go under MPL-2.0; fluvio is written in Rust under Apache-2.0. CloudQuery has attracted 9% as many forks as stars, fluvio 10%. CloudQuery 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
| CloudQuery | fluvio | |
|---|---|---|
| GitHub stars | ★ 6.5K | ★ 5.3K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Go | Rust |
| Last push | 2026-09-18 | 2026-08-30 |
| Forks | ⑂ 558 | ⑂ 530 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CloudQuery if
- You weight community size — 6.5K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Go
- 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 CloudQuery
CloudQuery is an open source, Go based cloud asset inventory and ELT tool, licensed under MPL 2.0, that syncs metadata from AWS, Azure, GCP, and more than 70 cloud and SaaS sources into a data warehouse so platform, security, and FinOps teams can query it with SQL.
read the full CloudQuery 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 CloudQuery or fluvio more popular?
CloudQuery has 6,521 GitHub stars and fluvio has 5,257. CloudQuery has the larger community by that measure.
Are CloudQuery and fluvio free?
Both are open source. CloudQuery is licensed under MPL-2.0 and fluvio under Apache-2.0. Neither carries a licence fee.
What is the difference between CloudQuery and fluvio?
CloudQuery is written in Go 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, CloudQuery or fluvio?
Choose CloudQuery if you want the larger community (6,521 stars) or its MPL-2.0 licence terms. Choose fluvio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.