head to head · open source
CocoIndex vs sling-cli
CocoIndex has 11,812 GitHub stars, 923 forks, 83 open issues and last shipped yesterday. sling-cli has 919 stars, 87 forks, 38 open issues and last shipped 2 days ago. CocoIndex leads on adoption by 1,185% (11,812 vs 919 stars). CocoIndex is written in Rust under Apache-2.0; sling-cli is written in Go under GPL-3.0. CocoIndex has attracted 8% as many forks as stars, sling-cli 9%. 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 | sling-cli | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 919 |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Rust | Go |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 923 | ⑂ 87 |
| 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 sling-cli if
- You want the sling-cli feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Go
- You evaluated both and sling-cli 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 sling-cli
Slings from a data source to a data target. See docs.slingdata.io for more details. Sling is a passion project turned into a free CLI Product which offers an easy solution to create and maintain small to medium volume data pipelines using the Extract & Load (EL) approach. It focuses on data movement between: Database to Database File System to Database Database to File System API to Database API to File System Some key features: Single Binary deployment (built with Go). See installation page. Use Custom SQL as a stream: src stream='select from my table where col1 10' Manage / View / Test / Discover your…
read the full sling-cli overview →
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Frequently asked questions
Is CocoIndex or sling-cli more popular?
CocoIndex has 11,812 GitHub stars and sling-cli has 919. CocoIndex has the larger community by that measure.
Are CocoIndex and sling-cli free?
Both are open source. CocoIndex is licensed under Apache-2.0 and sling-cli under GPL-3.0. Neither carries a licence fee.
What is the difference between CocoIndex and sling-cli?
CocoIndex is written in Rust and sling-cli 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, CocoIndex or sling-cli?
Choose CocoIndex if you want the larger community (11,812 stars) or its Apache-2.0 licence terms. Choose sling-cli if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.