head to head · open source
debezium vs chunjun
debezium has 13,129 GitHub stars, 3,042 forks, 131 open issues and last shipped yesterday. chunjun has 4,101 stars, 1,683 forks, 287 open issues and last shipped 10 months ago. debezium leads on adoption by 220% (13,129 vs 4,101 stars). debezium is written in Java under Apache-2.0; chunjun is written in Java under Apache-2.0. debezium has attracted 23% as many forks as stars, chunjun 41%. debezium was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| debezium | chunjun | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 4.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Java |
| Last push | 2026-09-17 | 2025-12-02 |
| Forks | ⑂ 3.0K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick debezium if
- You weight community size — 13K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick chunjun if
- You want the chunjun 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 chunjun fits your workflow better
About debezium
Debezium is an open source, low latency change data capture (CDC) platform that monitors databases and turns every row level change into an ordered event stream that applications consume, and it is built for Java teams already running Apache Kafka and Kafka Connect.
read the full debezium overview →
About chunjun
ChunJun is a Java based, Apache 2.0 licensed data integration framework that lives in the Apache Flink big data ecosystem. It is a distributed framework for synchronization and calculation between heterogeneous data sources, and it was initially known as FlinkX before being renamed ChunJun on February 22, 2022.
read the full chunjun overview →
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Frequently asked questions
Is debezium or chunjun more popular?
debezium has 13,129 GitHub stars and chunjun has 4,101. debezium has the larger community by that measure.
Are debezium and chunjun free?
Both are open source. debezium is licensed under Apache-2.0 and chunjun under Apache-2.0. Neither carries a licence fee.
What is the difference between debezium and chunjun?
debezium is written in Java and chunjun 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, debezium or chunjun?
Choose debezium if you want the larger community (13,129 stars) or its Apache-2.0 licence terms. Choose chunjun if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.