head to head · open source
shardingsphere vs CocoIndex
shardingsphere has 20,800 GitHub stars, 6,900 forks, 197 open issues and last shipped yesterday. CocoIndex has 11,566 stars, 899 forks, 83 open issues and last shipped 2 days ago. shardingsphere leads on adoption by 80% (20,800 vs 11,566 stars). shardingsphere is written in Java under Apache-2.0; CocoIndex is written in Rust under Apache-2.0. shardingsphere has attracted 33% as many forks as stars, CocoIndex 8%. shardingsphere was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| shardingsphere | CocoIndex | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 12K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Rust |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 6.9K | ⑂ 899 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick shardingsphere if
- You weight community size — 21K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- 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 shardingsphere
Apache ShardingSphere is an Apache 2.0 licensed, Java based distributed database ecosystem positioned as Database Plus — a standards and enhancement layer that sits above heterogeneous databases so applications can connect to, govern, and compute across them as if they were one database, aimed at enterprise data architects and developers running sharded, multi database estates.
read the full shardingsphere 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 shardingsphere or CocoIndex more popular?
shardingsphere has 20,800 GitHub stars and CocoIndex has 11,566. shardingsphere has the larger community by that measure.
Are shardingsphere and CocoIndex free?
Both are open source. shardingsphere is licensed under Apache-2.0 and CocoIndex under Apache-2.0. Neither carries a licence fee.
What is the difference between shardingsphere and CocoIndex?
shardingsphere is written in Java 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, shardingsphere or CocoIndex?
Choose shardingsphere if you want the larger community (20,800 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.