head to head · open source
LibreChat vs Langchain-Chatchat
LibreChat has 44,217 GitHub stars, 9,087 forks, 732 open issues and last shipped yesterday. Langchain-Chatchat has 38,641 stars, 6,263 forks, 26 open issues and last shipped 10 months ago. LibreChat leads on adoption by 14% (44,217 vs 38,641 stars). LibreChat is written in TypeScript under MIT; Langchain-Chatchat is written in Python under Apache-2.0. LibreChat has attracted 21% as many forks as stars, Langchain-Chatchat 16%. LibreChat was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatgpt), 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
| LibreChat | Langchain-Chatchat | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 39K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-17 | 2025-11-10 |
| Forks | ⑂ 9.1K | ⑂ 6.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LibreChat if
- You weight community size — 44K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Langchain-Chatchat if
- You want the Langchain-Chatchat 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 Langchain-Chatchat fits your workflow better
About LibreChat
LibreChat is an open source, self hostable chat interface designed as an enhanced ChatGPT clone. It unifies access to multiple AI models—including OpenAI, Anthropic, Google Gemini, DeepSeek, Mistral, AWS Bedrock, Azure OpenAI, and others—within a single web application. Built in TypeScript, it supports real time streaming, multi model switching, and advanced agent workflows while providing features like message search, artifacts, code interpreter, and secure multi user authentication.
read the full LibreChat overview →
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 →
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Frequently asked questions
Is LibreChat or Langchain-Chatchat more popular?
LibreChat has 44,217 GitHub stars and Langchain-Chatchat has 38,641. LibreChat has the larger community by that measure.
Are LibreChat and Langchain-Chatchat free?
Both are open source. LibreChat is licensed under MIT and Langchain-Chatchat under Apache-2.0. Neither carries a licence fee.
What is the difference between LibreChat and Langchain-Chatchat?
LibreChat is written in TypeScript and Langchain-Chatchat 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, LibreChat or Langchain-Chatchat?
Choose LibreChat if you want the larger community (44,217 stars) or its MIT licence terms. Choose Langchain-Chatchat if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.