head to head · open source
Langchain-Chatchat vs repomix
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. repomix has 28,416 stars, 1,530 forks, 138 open issues and last shipped yesterday. Langchain-Chatchat leads on adoption by 36% (38,643 vs 28,416 stars). Langchain-Chatchat is written in Python under Apache-2.0; repomix is written in TypeScript under MIT. Langchain-Chatchat has attracted 16% as many forks as stars, repomix 5%. repomix was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (chatbot, chatgpt, gpt), 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 | repomix | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 28K |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2025-11-10 | 2026-09-19 |
| Forks | ⑂ 6.3K | ⑂ 1.5K |
| 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 repomix if
- You want the repomix feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and repomix 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 repomix
Repomix is an MIT licensed TypeScript tool that packs an entire repository into a single AI friendly file, built for developers who need to feed a whole codebase to large language models such as Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, or Grok.
read the full repomix overview →
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Frequently asked questions
Is Langchain-Chatchat or repomix more popular?
Langchain-Chatchat has 38,643 GitHub stars and repomix has 28,416. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and repomix free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and repomix under MIT. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and repomix?
Langchain-Chatchat is written in Python and repomix 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, Langchain-Chatchat or repomix?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose repomix if its feature set, stack or MIT licence fits better. Both are self-hostable.