head to head · open source
nebula vs llmwiki
nebula has 12,398 GitHub stars, 1,329 forks, 678 open issues and last shipped 12 days ago. llmwiki has 1,629 stars, 235 forks, 28 open issues and last shipped yesterday. nebula leads on adoption by 661% (12,398 vs 1,629 stars). nebula is written in C++ under Apache-2.0; llmwiki is written in Python under Apache-2.0. nebula has attracted 11% as many forks as stars, llmwiki 14%. llmwiki 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 | llmwiki | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 1.6K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | C++ | Python |
| Last push | 2026-09-08 | 2026-09-19 |
| Forks | ⑂ 1.3K | ⑂ 235 |
| 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 llmwiki if
- You want the llmwiki 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 llmwiki fits your workflow better
About nebula
NebulaGraph is an open source, distributed graph database written in C++ and released under the Apache 2.0 license. It lives in the graph database ecosystem and appears in the CNCF Database Landscape. The project describes itself as symmetrically distributed, with storage and computing separated into distinct layers, horizontal scalability across nodes, strong data consistency enforced through the RAFT protocol, an OpenCypher compatible query language, role based access control, and a set of graph analytics algorithms. It has been developed for roughly eight years and carries 12,387 stars, 1,330 forks, and 678 op…
read the full nebula overview →
About llmwiki
LLM Wiki is an open source, Apache 2.0 Python project that turns a folder of documents, notes, and web clippings into an autonomous, self maintaining personal Wikipedia written and updated by Claude over MCP, built for individual readers, their AI assistants, and organizations that want a knowledge base they do not have to remember to update.
read the full llmwiki overview →
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Frequently asked questions
Is nebula or llmwiki more popular?
nebula has 12,398 GitHub stars and llmwiki has 1,629. nebula has the larger community by that measure.
Are nebula and llmwiki free?
Both are open source. nebula is licensed under Apache-2.0 and llmwiki under Apache-2.0. Neither carries a licence fee.
What is the difference between nebula and llmwiki?
nebula is written in C++ and llmwiki 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, nebula or llmwiki?
Choose nebula if you want the larger community (12,398 stars) or its Apache-2.0 licence terms. Choose llmwiki if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.