head to head · open source
LibreChat vs Langchain-Chatchat
LibreChat has 46,705 GitHub stars, 9,610 forks, 732 open issues and last shipped yesterday. Langchain-Chatchat has 38,715 stars, 6,255 forks, 26 open issues and last shipped 12 months ago. LibreChat leads on adoption by 21% (46,705 vs 38,715 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 | ★ 47K | ★ 39K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-04 | 2025-11-10 |
| Forks | ⑂ 9.6K | ⑂ 6.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LibreChat if
- You weight community size — 47K 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 English · 中文 🚀 What's New in v0.8.8 rc2 Agent run control: Interrupt an Agent before visible answer text, steer runs with files and quoted excerpts, durably queue follow ups, and recover saved partial work with Keep going or Answer now . Agent activity: Optional generated labels group reasoning and tool work, fold completed groups into live phase cards, keep generated files visible, summarize multi step phases, and show the current reasoning direction. Human in the loop Agents: Stream up to four related questions, pause for input or tool approval, and resume durably. Unified Agent Builder: Configure…
read the full LibreChat overview →
About Langchain-Chatchat
🌍 READ THIS IN ENGLISH 📃 LangChain Chatchat (原 Langchain ChatGLM) 基于 ChatGLM 等大语言模型与 Langchain 等应用框架实现，开源、可离线部署的 RAG 与 Agent 应用项目。 目录 概述 功能介绍 0.3.x 功能一览 已支持的模型推理框架与模型 快速上手 pip 安装部署 源码安装部署/开发部署 Docker 部署 项目里程碑 联系我们 概述 🤖️ 一种利用 langchain 思想实现的基于本地知识库的问答应用，目标期望建立一套对中文场景与开源模型支持友好、可离线运行的知识库问答解决方案。 💡 受 GanymedeNil 的项目 document.ai 和 AlexZhangji 创建的 ChatGLM 6B Pull Request 启发，建立了全流程可使用开源模型实现的本地知识库问答应用。本项目的最新版本中可使用 Xinference、Ollama 等框架接入 GLM 4 Chat、 Qwen2 Instruct、 Llama3 等模型，依托于 langchain 框架支持通过基于 FastAPI 提供的 API 调用服务，或使用基于 Streamlit 的 WebUI 进行操作。 ✅ 本项目支持市面上主流的开源 LLM、 Embedding 模型与向量数据库，可实现全部使用 开源 模型 离线私有部署…
read the full Langchain-Chatchat overview →
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Frequently asked questions
Is LibreChat or Langchain-Chatchat more popular?
LibreChat has 46,705 GitHub stars and Langchain-Chatchat has 38,715. 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 (46,705 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.