head to head · open source
CloudQuery vs flink-cdc
CloudQuery has 6,550 GitHub stars, 567 forks, 166 open issues and last shipped 2 days ago. flink-cdc has 6,491 stars, 2,205 forks, 119 open issues and last shipped yesterday. CloudQuery leads on adoption by 1% (6,550 vs 6,491 stars). CloudQuery is written in Go under MPL-2.0; flink-cdc is written in Java under Apache-2.0. CloudQuery has attracted 9% as many forks as stars, flink-cdc 34%. flink-cdc was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (data-integration, elt), 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 | flink-cdc | |
|---|---|---|
| GitHub stars | ★ 6.5K | ★ 6.5K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-03 | 2026-11-04 |
| Forks | ⑂ 567 | ⑂ 2.2K |
| 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 flink-cdc if
- You want the flink-cdc feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and flink-cdc fits your workflow better
About CloudQuery
CloudOps, without the chaos CloudQuery is a cloud asset inventory built for platform teams. Sync your cloud infrastructure metadata into your data warehouse, powering insights and automation. Unify data and provide context across AWS, Azure, GCP, and 70+ cloud and SaaS sources such as Wiz, Finout, and GitHub. Installation Check out the quickstart guide for install guides for Linux and Windows and for step by step instructions on completing your first sync with CloudQuery. Why CloudQuery? Specialized plugin coverage Support for cloud infrastructure, security, and FinOps sources with normalization, rate limit…
read the full CloudQuery overview →
About flink-cdc
Flink CDC is a distributed data integration tool for real time data and batch data, built on top of Apache Flink. It prioritizes efficient end to end data integration and offers enhanced functionalities such as full database synchronization, sharding table synchronization, schema evolution and data transformation. API Layers Flink CDC provides three API layers for different usage scenarios: 1. YAML API (Pipeline API) The YAML API provides a declarative, zero code approach to define data pipelines. Users describe the source, sink, routing, transformation, and schema evolution rules in a YAML file and submit it…
read the full flink-cdc overview →
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Frequently asked questions
Is CloudQuery or flink-cdc more popular?
CloudQuery has 6,550 GitHub stars and flink-cdc has 6,491. CloudQuery has the larger community by that measure.
Are CloudQuery and flink-cdc free?
Both are open source. CloudQuery is licensed under MPL-2.0 and flink-cdc under Apache-2.0. Neither carries a licence fee.
What is the difference between CloudQuery and flink-cdc?
CloudQuery is written in Go and flink-cdc in Java. 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 flink-cdc?
Choose CloudQuery if you want the larger community (6,550 stars) or its MPL-2.0 licence terms. Choose flink-cdc if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.