head to head · open source
CocoIndex vs duckle
CocoIndex has 11,812 GitHub stars, 923 forks, 83 open issues and last shipped yesterday. duckle has 1,546 stars, 120 forks, 79 open issues and last shipped 2 days ago. CocoIndex leads on adoption by 664% (11,812 vs 1,546 stars). CocoIndex is written in Rust under Apache-2.0; duckle is written in Rust under Apache-2.0. CocoIndex has attracted 8% as many forks as stars, duckle 8%. CocoIndex 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
| CocoIndex | duckle | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.5K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Rust |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 923 | ⑂ 120 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CocoIndex if
- You weight community size — 12K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick duckle if
- You want the duckle 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 duckle fits your workflow better
About CocoIndex
Your agents deserve fresh context. Star us ❤️ → · · · CocoIndex turns codebases, meeting notes, inboxes, Slack, PDFs, and videos into live, continuously fresh context for your AI agents and LLM apps to reason over effectively — with minimal incremental processing. Get your production AI agent ready in 10 minutes with reliable, continuously fresh data — no stale batches, no context gap Incremental · only the delta · Any scale · parallel by default · Declarative · Python, 5 min Deutsch English Español français 日本語 한국어 Português Русский 中文 Built with CocoIndex ❤️ <img src=" alt="CocoIndex code — flagship MCP server…
read the full CocoIndex overview →
About duckle
Pipelines you own. Author and deploy to your servers or cloud. Duckle is an open source ETL platform for teams who want their pipelines running on their own infrastructure. Author on a canvas, in Python or in SQL, then ship the same file to your own server or cloud account: duckle runner serve runs it headless on a schedule, in Docker or on a box you own, with a web console, roles and an audit trail. Every pipeline is one file in git, so it outlives whoever wrote it. It compiles to SQL on DuckDB and uses every core you give the box, so a bigger instance is a faster pipeline: 96 million rows out of Postgres to…
read the full duckle overview →
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Frequently asked questions
Is CocoIndex or duckle more popular?
CocoIndex has 11,812 GitHub stars and duckle has 1,546. CocoIndex has the larger community by that measure.
Are CocoIndex and duckle free?
Both are open source. CocoIndex is licensed under Apache-2.0 and duckle under Apache-2.0. Neither carries a licence fee.
What is the difference between CocoIndex and duckle?
CocoIndex is written in Rust and duckle 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, CocoIndex or duckle?
Choose CocoIndex if you want the larger community (11,812 stars) or its Apache-2.0 licence terms. Choose duckle if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.