head to head · open source
LightRAG vs ruoyi-ai
LightRAG has 39,770 GitHub stars, 5,599 forks, 222 open issues and last shipped today. ruoyi-ai has 5,710 stars, 1,407 forks, 7 open issues and last shipped 9 days ago. LightRAG leads on adoption by 596% (39,770 vs 5,710 stars). LightRAG is written in Python under MIT; ruoyi-ai is written in Java under MIT. LightRAG has attracted 14% as many forks as stars, ruoyi-ai 25%. LightRAG was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (rag), 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
| LightRAG | ruoyi-ai | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 5.7K |
| License | MIT | MIT |
| Written in | Python | Java |
| Last push | 2026-09-20 | 2026-09-11 |
| Forks | ⑂ 5.6K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LightRAG if
- You weight community size — 40K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick ruoyi-ai if
- You want the ruoyi-ai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and ruoyi-ai fits your workflow better
About LightRAG
LightRAG is a Python retrieval augmented generation framework, released under the MIT licence and presented in an EMNLP 2025 paper, that builds a knowledge graph over documents so that queries can be answered from both graph structure and vector similarity.
read the full LightRAG overview →
About ruoyi-ai
RuoYi AI is an MIT licensed, Java based enterprise AI development framework for building AI agents, aimed at developers and platform teams that need multi provider LLM management, private knowledge bases, visual workflow orchestration and multi agent coordination in a single self hostable stack.
read the full ruoyi-ai overview →
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Frequently asked questions
Is LightRAG or ruoyi-ai more popular?
LightRAG has 39,770 GitHub stars and ruoyi-ai has 5,710. LightRAG has the larger community by that measure.
Are LightRAG and ruoyi-ai free?
Both are open source. LightRAG is licensed under MIT and ruoyi-ai under MIT. Neither carries a licence fee.
What is the difference between LightRAG and ruoyi-ai?
LightRAG is written in Python and ruoyi-ai 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, LightRAG or ruoyi-ai?
Choose LightRAG if you want the larger community (39,770 stars) or its MIT licence terms. Choose ruoyi-ai if its feature set, stack or MIT licence fits better. Both are self-hostable.