head to head · open source
CocoIndex vs Addax
CocoIndex has 11,812 GitHub stars, 923 forks, 83 open issues and last shipped yesterday. Addax has 1,453 stars, 342 forks, 5 open issues and last shipped yesterday. CocoIndex leads on adoption by 713% (11,812 vs 1,453 stars). CocoIndex is written in Rust under Apache-2.0; Addax is written in Java under Apache-2.0. CocoIndex has attracted 8% as many forks as stars, Addax 24%. CocoIndex 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
| CocoIndex | Addax | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.5K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 923 | ⑂ 342 |
| 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 Addax if
- You want the Addax feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Addax 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 Addax
Addax A versatile open source ETL tool Addax is an extensible ETL (Extract, Transform, Load) tool supporting over 20 SQL/NoSQL data sources, forked from Alibaba's DataX , which has been frozen since 2023 — Addax is its actively maintained successor. It provides a growing ecosystem of plugins and offers easy to follow configuration for data integrations. 简体中文 🚀 Features Supports 20+ SQL and NoSQL data sources, and easily extendable for more. Configurable via simple JSON based job descriptions. Actively maintained with improved architecture and added functionality compared to DataX. Docker images for quick…
read the full Addax overview →
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Frequently asked questions
Is CocoIndex or Addax more popular?
CocoIndex has 11,812 GitHub stars and Addax has 1,453. CocoIndex has the larger community by that measure.
Are CocoIndex and Addax free?
Both are open source. CocoIndex is licensed under Apache-2.0 and Addax under Apache-2.0. Neither carries a licence fee.
What is the difference between CocoIndex and Addax?
CocoIndex is written in Rust and Addax in Java. 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 Addax?
Choose CocoIndex if you want the larger community (11,812 stars) or its Apache-2.0 licence terms. Choose Addax if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.