head to head · open source
debezium vs OpenContracts
debezium has 13,129 GitHub stars, 3,042 forks, 131 open issues and last shipped yesterday. OpenContracts has 1,481 stars, 189 forks, 11 open issues and last shipped yesterday. debezium leads on adoption by 786% (13,129 vs 1,481 stars). debezium is written in Java under Apache-2.0; OpenContracts is written in Python under MIT. debezium has attracted 23% as many forks as stars, OpenContracts 13%. 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 | OpenContracts | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 1.5K |
| License | Apache-2.0 | MIT |
| Written in | Java | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 3.0K | ⑂ 189 |
| 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 OpenContracts if
- You want the OpenContracts feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and OpenContracts 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 OpenContracts
OpenContracts is an MIT licensed, self hosted document intelligence platform that turns a repository of documents into a programmable citation graph, built for builders and hackers who need a document management system for the agentic world as much as a place to store files.
read the full OpenContracts overview →
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Frequently asked questions
Is debezium or OpenContracts more popular?
debezium has 13,129 GitHub stars and OpenContracts has 1,481. debezium has the larger community by that measure.
Are debezium and OpenContracts free?
Both are open source. debezium is licensed under Apache-2.0 and OpenContracts under MIT. Neither carries a licence fee.
What is the difference between debezium and OpenContracts?
debezium is written in Java and OpenContracts in Python. 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 OpenContracts?
Choose debezium if you want the larger community (13,129 stars) or its Apache-2.0 licence terms. Choose OpenContracts if its feature set, stack or MIT licence fits better. Both are self-hostable.