head to head · open source
nebula vs AutoRAG
nebula has 12,467 GitHub stars, 1,340 forks, 678 open issues and last shipped 2 months ago. AutoRAG has 5,670 stars, 496 forks, 83 open issues and last shipped yesterday. nebula leads on adoption by 120% (12,467 vs 5,670 stars). nebula is written in C++ under Apache-2.0; AutoRAG is written in TypeScript under Apache-2.0. nebula has attracted 11% as many forks as stars, AutoRAG 9%. AutoRAG was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (knowledge-base), 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
| nebula | AutoRAG | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 5.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-09-08 | 2026-11-11 |
| Forks | ⑂ 1.3K | ⑂ 496 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nebula if
- You weight community size — 12K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick AutoRAG if
- You want the AutoRAG feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and AutoRAG fits your workflow better
About nebula
English 中文 A distributed, scalable, lightning fast graph database NebulaGraph Introduction NebulaGraph is a popular open source graph database that can handle large volumes of data with milliseconds of latency, scale up quickly, and have the ability to perform fast graph analytics. NebulaGraph has been widely used for social media, recommendation systems, knowledge graphs, security, capital flows, AI, etc. See our users. The following lists some of NebulaGraph features: Symmetrically distributed Storage and computing separation Horizontal scalability Strong data consistency by RAFT protocol OpenCypher compatible…
read the full nebula overview →
About AutoRAG
AutoRAG Agent Now your agent can find anything in your computer. = 24" / = 1.2" / [!IMPORTANT] Looking for the original AutoRAG (RAG AutoML / pipeline optimization tool)? This repository now hosts AutoRAG 2.0 , a complete reimagining of AutoRAG as a personal librarian agent for your office work. The original Python based AutoRAG — the RAG AutoML tool for automatically finding an optimal RAG pipeline for your data — now lives in the legacy/ directory of this repository. The legacy AutoRAG is NOT abandoned. It continues to be maintained (bug fixes, dependency updates, and PyPI releases via pip install AutoRAG ) in…
read the full AutoRAG overview →
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Frequently asked questions
Is nebula or AutoRAG more popular?
nebula has 12,467 GitHub stars and AutoRAG has 5,670. nebula has the larger community by that measure.
Are nebula and AutoRAG free?
Both are open source. nebula is licensed under Apache-2.0 and AutoRAG under Apache-2.0. Neither carries a licence fee.
What is the difference between nebula and AutoRAG?
nebula is written in C++ and AutoRAG in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nebula or AutoRAG?
Choose nebula if you want the larger community (12,467 stars) or its Apache-2.0 licence terms. Choose AutoRAG if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.