head to head · open source
debezium vs chunjun
debezium has 13,307 GitHub stars, 3,124 forks, 131 open issues and last shipped yesterday. chunjun has 4,106 stars, 1,683 forks, 287 open issues and last shipped 25 days ago. debezium leads on adoption by 224% (13,307 vs 4,106 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 | 2026-11-02 | 2026-10-09 |
| Forks | ⑂ 3.1K | ⑂ 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
Copyright Debezium Authors. Licensed under the Apache License, Version 2.0. The Antlr grammars within the debezium ddl parser module are licensed under the MIT License. English Chinese Japanese Korean Debezium Debezium is an open source project that provides a low latency data streaming platform for change data capture (CDC). You set up and configure Debezium to monitor your databases, and then your applications consume events for each row level change made to the database. Only committed changes are visible, so your application doesn't have to worry about transactions or changes that are rolled back. Debezium…
read the full debezium overview →
About chunjun
ChunJun Introduce ChunJun is a distributed integration framework, and currently is based on Apache Flink. It was initially known as FlinkX and renamed ChunJun on February 22, 2022. It can realize data synchronization and calculation between various heterogeneous data sources. ChunJun has been deployed and running stably in thousands of companies so far. Official website of ChunJun: Features of ChunJun ChunJun abstracts different databases into reader/source plugins, writer/sink plugins and lookup plugins, and it has the following features: Based on the real time computing engine Flink, and supports JSON template…
read the full chunjun overview →
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Frequently asked questions
Is debezium or chunjun more popular?
debezium has 13,307 GitHub stars and chunjun has 4,106. 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 (13,307 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.