head to head · open source
Airbyte vs Etl.Net
Airbyte has 22,083 GitHub stars, 5,351 forks, 2,395 open issues and last shipped today. Etl.Net has 810 stars, 106 forks, 46 open issues and last shipped 2 days ago. Airbyte leads on adoption by 2,626% (22,083 vs 810 stars). Airbyte is written in Python under a custom or non-standard licence; Etl.Net is written in C# under MIT. Airbyte has attracted 24% as many forks as stars, Etl.Net 13%. Airbyte was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (etl), 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
| Airbyte | Etl.Net | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 810 |
| License | Custom / other | MIT |
| Written in | Python | C# |
| Last push | 2026-09-18 | 2026-09-16 |
| Forks | ⑂ 5.4K | ⑂ 106 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Airbyte if
- You weight community size — 22K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Etl.Net if
- You want the Etl.Net feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Etl.Net fits your workflow better
About Airbyte
Airbyte open source data movement project. It lives in data engineering and data integration ecosystem. It moves data from APIs, databases, and files into warehouses, data lakes, and AI applications. It supports ELT and ETL pipelines. It also supports AI agents needing business data.
read the full Airbyte overview →
About Etl.Net
Etl.Net Go to full documentation :rotating light: I need some help!!! :ambulance: I need some serious help for the following subject: :books: Documentation. The website of ETL.NET needs to be completed. It contains the essential to start and get in touch, but a dramatic amount of serious features is not documented in there. :heavy check mark: Unit tests. A proper test code coverage is the only real way to be taken seriously when it is about selecting the right open source library. There was a time when some units tests existed only for the reactive engine of the core (Paillave.EtlNet.Core). But it happened I had …
read the full Etl.Net overview →
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Frequently asked questions
Is Airbyte or Etl.Net more popular?
Airbyte has 22,083 GitHub stars and Etl.Net has 810. Airbyte has the larger community by that measure.
Are Airbyte and Etl.Net free?
Both are open source. Airbyte has no licence declared in this registry, and Etl.Net is licensed under MIT. Both are free to self-host.
What is the difference between Airbyte and Etl.Net?
Airbyte is written in Python and Etl.Net in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Airbyte or Etl.Net?
Choose Airbyte if you want the larger community (22,083 stars) or its Custom / other licence terms. Choose Etl.Net if its feature set, stack or MIT licence fits better. Both are self-hostable.