head to head · open source
debezium vs olake
debezium has 13,129 GitHub stars, 3,042 forks, 131 open issues and last shipped yesterday. olake has 1,453 stars, 252 forks, 178 open issues and last shipped yesterday. debezium leads on adoption by 804% (13,129 vs 1,453 stars). debezium is written in Java under Apache-2.0; olake is written in Go under Apache-2.0. debezium has attracted 23% as many forks as stars, olake 17%. debezium was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 6 topic tags (cdc, change-data-capture, data-pipeline, database), 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 | olake | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 1.5K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 3.0K | ⑂ 252 |
| 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 olake if
- You want the olake feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and olake 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 olake
OLake Go is an open source data ingestion engine written in Go and licensed under Apache 2.0. It replicates transactional databases, Apache Kafka, and S3 into Apache Iceberg or plain Parquet, and it provides a web UI and a command line interface for building scalable, real time pipelines. The project sits in the Apache Iceberg and lakehouse ecosystem, where its stated goal is to move data into vendor neutral table formats that can be read by query engines and warehouses.
read the full olake overview →
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Frequently asked questions
Is debezium or olake more popular?
debezium has 13,129 GitHub stars and olake has 1,453. debezium has the larger community by that measure.
Are debezium and olake free?
Both are open source. debezium is licensed under Apache-2.0 and olake under Apache-2.0. Neither carries a licence fee.
What is the difference between debezium and olake?
debezium is written in Java and olake in Go. 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 olake?
Choose debezium if you want the larger community (13,129 stars) or its Apache-2.0 licence terms. Choose olake if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.