head to head · open source
debezium vs CocoIndex
debezium has 13,129 GitHub stars, 3,042 forks, 131 open issues and last shipped yesterday. CocoIndex has 11,566 stars, 899 forks, 83 open issues and last shipped 2 days ago. debezium leads on adoption by 14% (13,129 vs 11,566 stars). debezium is written in Java under Apache-2.0; CocoIndex is written in Rust under Apache-2.0. debezium has attracted 23% as many forks as stars, CocoIndex 8%. debezium was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (change-data-capture), 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
| debezium | CocoIndex | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 12K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Rust |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 3.0K | ⑂ 899 |
| 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 CocoIndex if
- You want the CocoIndex 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 CocoIndex 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 CocoIndex
CocoIndex is an open source incremental data transformation engine for AI workloads, built in Rust with a Python interface and positioned in the data engineering, ETL, indexing, and AI agent ecosystem. It turns codebases, meeting notes, inboxes, Slack, PDFs, and videos into continuously fresh context for AI agents and LLM applications.
read the full CocoIndex overview →
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Frequently asked questions
Is debezium or CocoIndex more popular?
debezium has 13,129 GitHub stars and CocoIndex has 11,566. debezium has the larger community by that measure.
Are debezium and CocoIndex free?
Both are open source. debezium is licensed under Apache-2.0 and CocoIndex under Apache-2.0. Neither carries a licence fee.
What is the difference between debezium and CocoIndex?
debezium is written in Java and CocoIndex 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, debezium or CocoIndex?
Choose debezium if you want the larger community (13,129 stars) or its Apache-2.0 licence terms. Choose CocoIndex if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.