head to head · open source
seatunnel vs peerdb
seatunnel has 9,657 GitHub stars, 2,416 forks, 705 open issues and last shipped today. peerdb has 3,274 stars, 213 forks, 204 open issues and last shipped yesterday. seatunnel leads on adoption by 195% (9,657 vs 3,274 stars). seatunnel is written in Java under Apache-2.0; peerdb is written in Go under AGPL-3.0. seatunnel has attracted 25% as many forks as stars, peerdb 7%. seatunnel was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (cdc), 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
| seatunnel | peerdb | |
|---|---|---|
| GitHub stars | ★ 9.7K | ★ 3.3K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Java | Go |
| Last push | 2026-09-20 | 2026-09-19 |
| Forks | ⑂ 2.4K | ⑂ 213 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick seatunnel if
- You weight community size — 9.7K 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 peerdb if
- You want the peerdb feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and peerdb fits your workflow better
About seatunnel
Apache SeaTunnel is a multimodal, high performance, distributed data integration tool that is capable of synchronizing vast amounts of data daily. It is an Apache Software Foundation project written in Java and released under the Apache 2.0 license, with a home on the web at seatunnel.apache.org. The project has been in development for roughly nine years and has accumulated 9,652 stars and 2,407 forks on GitHub. It sits in the Data & Analytics ecosystem, specifically in data engineering and integration, and it is built around a connector driven model: sources, sinks, and transforms are configured as jobs, and tho…
read the full seatunnel overview →
About peerdb
PeerDB is a data integration project in the Postgres ecosystem. It lives in the Data & Analytics / Data Engineering & Integration category and focuses on streaming data from Postgres to data warehouses, queues, and storage engines. The project is built around Postgres first ETL and change data capture workflows rather than a broad connector catalog.
read the full peerdb overview →
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Frequently asked questions
Is seatunnel or peerdb more popular?
seatunnel has 9,657 GitHub stars and peerdb has 3,274. seatunnel has the larger community by that measure.
Are seatunnel and peerdb free?
Both are open source. seatunnel is licensed under Apache-2.0 and peerdb under AGPL-3.0. Neither carries a licence fee.
What is the difference between seatunnel and peerdb?
seatunnel is written in Java and peerdb 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, seatunnel or peerdb?
Choose seatunnel if you want the larger community (9,657 stars) or its Apache-2.0 licence terms. Choose peerdb if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.