head to head · open source
nebula vs llmwiki
nebula has 12,466 GitHub stars, 1,343 forks, 678 open issues and last shipped 2 months ago. llmwiki has 1,750 stars, 246 forks, 28 open issues and last shipped 5 days ago. nebula leads on adoption by 612% (12,466 vs 1,750 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 | ★ 1.8K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | C++ | Python |
| Last push | 2026-09-08 | 2026-10-31 |
| Forks | ⑂ 1.3K | ⑂ 246 |
| 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
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 llmwiki
LLM Wiki An autonomous, self maintaining personal Wikipedia built and maintained by AI. LLM Wiki transforms your scattered reading and research into a persistent, AI maintained second brain. Capture documents, notes, and web clippings as you work, and deploy a nightly Claude Routine to autonomously synthesize those sources into a permanent knowledge base. Because the clipper captures your highlights and margin notes alongside the source, the wiki becomes a record of not just what you read but what you thought about it — one that compounds over months and years, long after the original context would have faded…
read the full llmwiki overview →
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Frequently asked questions
Is nebula or llmwiki more popular?
nebula has 12,466 GitHub stars and llmwiki has 1,750. 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 (12,466 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.