head to head · open source
shardingsphere vs redun
shardingsphere has 20,817 GitHub stars, 6,906 forks, 197 open issues and last shipped yesterday. redun has 608 stars, 54 forks, 34 open issues and last shipped 4 months ago. shardingsphere leads on adoption by 3,324% (20,817 vs 608 stars). shardingsphere is written in Java under Apache-2.0; redun is written in Python under Apache-2.0. shardingsphere has attracted 33% as many forks as stars, redun 9%. 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 | redun | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 608 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Python |
| Last push | 2026-11-02 | 2026-07-17 |
| Forks | ⑂ 6.9K | ⑂ 54 |
| 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 redun if
- You want the redun feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and redun fits your workflow better
About shardingsphere
Apache ShardingSphere Enterprise Distributed Database Ecosystem Building the standards and ecosystem on top of heterogeneous databases, empowering enterprise data architecture transformation Official Website: OVERVIEW Apache ShardingSphere is positioned as Database Plus , a standard and ecosystem built on top of heterogeneous databases. As an operating system layer above databases, ShardingSphere does not create new databases but focuses on maximizing the computing capabilities of existing databases, providing unified data access and enhanced computing capabilities. Database Plus Core Concept : By building a…
read the full shardingsphere overview →
About redun
yet another redundant workflow engine redun aims to be a more expressive and efficient workflow framework, built on top of the popular Python programming language. It takes the somewhat contrarian view that writing dataflows directly is unnecessarily restrictive, and by doing so we lose abstractions we have come to rely on in most modern high level languages (control flow, composability, recursion, high order functions, etc). redun's key insight is that workflows can be expressed as lazy expressions, which are then evaluated by a scheduler that performs automatic parallelization, caching, and data provenance…
read the full redun overview →
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Frequently asked questions
Is shardingsphere or redun more popular?
shardingsphere has 20,817 GitHub stars and redun has 608. shardingsphere has the larger community by that measure.
Are shardingsphere and redun free?
Both are open source. shardingsphere is licensed under Apache-2.0 and redun under Apache-2.0. Neither carries a licence fee.
What is the difference between shardingsphere and redun?
shardingsphere is written in Java and redun in Python. 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 redun?
Choose shardingsphere if you want the larger community (20,817 stars) or its Apache-2.0 licence terms. Choose redun if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.