head to head · open source
Langchain-Chatchat vs nonebot2
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. nonebot2 has 7,722 stars, 662 forks, 39 open issues and last shipped today. Langchain-Chatchat leads on adoption by 400% (38,643 vs 7,722 stars). Langchain-Chatchat is written in Python under Apache-2.0; nonebot2 is written in Python under MIT. Langchain-Chatchat has attracted 16% as many forks as stars, nonebot2 9%. nonebot2 was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatbot), 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
| Langchain-Chatchat | nonebot2 | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 7.7K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2025-11-10 | 2026-09-20 |
| Forks | ⑂ 6.3K | ⑂ 662 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langchain-Chatchat if
- You weight community size — 39K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick nonebot2 if
- You want the nonebot2 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and nonebot2 fits your workflow better
About Langchain-Chatchat
Langchain Chatchat (formerly Langchain ChatGLM) is an open source RAG and Agent application built on the Langchain framework and designed to run against local large language models such as ChatGLM, Qwen, and Llama. It lives in the Python ecosystem, is distributed under the Apache 2.0 license, and is published on PyPI as langchain chatchat . The project targets Chinese language scenarios and open source models specifically, with the stated goal of providing a knowledge base question answering solution that can run entirely offline.
read the full Langchain-Chatchat overview →
About nonebot2
NoneBot2 is a cross platform, asynchronous chatbot framework written in Python, built for developers who want one codebase to serve bots across many chat platforms instead of rewriting integration glue for each one.
read the full nonebot2 overview →
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Frequently asked questions
Is Langchain-Chatchat or nonebot2 more popular?
Langchain-Chatchat has 38,643 GitHub stars and nonebot2 has 7,722. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and nonebot2 free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and nonebot2 under MIT. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and nonebot2?
Langchain-Chatchat is written in Python and nonebot2 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, Langchain-Chatchat or nonebot2?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose nonebot2 if its feature set, stack or MIT licence fits better. Both are self-hostable.