head to head · open source
airflow vs CocoIndex
airflow has 47,147 GitHub stars, 18,000 forks, 1,831 open issues and last shipped yesterday. CocoIndex has 11,670 stars, 913 forks, 83 open issues and last shipped yesterday. airflow leads on adoption by 304% (47,147 vs 11,670 stars). airflow is written in Python under Apache-2.0; CocoIndex is written in Rust under Apache-2.0. airflow has attracted 38% as many forks as stars, CocoIndex 8%. airflow was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (data-engineering, 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
| airflow | CocoIndex | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 12K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Rust |
| Last push | 2026-10-11 | 2026-10-11 |
| Forks | ⑂ 18K | ⑂ 913 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick airflow if
- You weight community size — 47K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- 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 airflow
Apache Airflow is an open source Python platform for programmatically authoring, scheduling, and monitoring data workflows, aimed at data engineers, data scientists, and MLOps teams who need to orchestrate pipelines as code.
read the full airflow 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 airflow or CocoIndex more popular?
airflow has 47,147 GitHub stars and CocoIndex has 11,670. airflow has the larger community by that measure.
Are airflow and CocoIndex free?
Both are open source. airflow is licensed under Apache-2.0 and CocoIndex under Apache-2.0. Neither carries a licence fee.
What is the difference between airflow and CocoIndex?
airflow is written in Python 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, airflow or CocoIndex?
Choose airflow if you want the larger community (47,147 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.