chatchat-space/Langchain-Chatchat

🧭 What Does Langchain-Chatchat Actually Do? — A Plain-English Guide

In simple words: Langchain-Chatchat is an AI tool, for chatting with an AI assistant that answers your questions. It is completely free and open source — its code is public on GitHub, where 38,716 people have bookmarked it as worth using.

Step by step — how you would actually use it

1. Open or install Langchain-Chatchat — some AI tools run in your browser, larger ones run on your own computer. The difficulty label on this page tells you honestly which kind this is.
2. Give it your input: type a question, paste some text, or upload a photo, audio file or document.
3. Press the main button and wait a few seconds while the AI does the work.
4. It gives you the result — this is how it is used for chatting with an AI assistant that answers your questions.
5. Check the result, adjust or ask again if needed, then copy, download or share it.

💡 A real-life example: You open it and ask, in normal language, 'write a polite reply to this customer' — and it drafts the reply for you in seconds.

RepoEasy wrote this simple explanation from the project's public data — its category, topics and description — so a beginner can understand it before downloading anything. For exact technical details, the project's own README (linked below) is the final word.

Quick Overview — What is this tool?

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain

This is the project's own description from GitHub — we show it as-is rather than inventing details.

What Can You Do With It?

• Download and run the complete source code on your own computer or server.
• Study how it works — every line of code is public.
• Use it in your own projects, subject to its license terms (see cost section below).
• Its GitHub topics describe its main areas: chatbotchatchatchatglmchatgptembeddingfaissfastchatgptknowledge-baselangchainlangchain-chatglmllamallmmilvusollamaqwenragretrieval-augmented-generationstreamlitxinference

Who Is This For?

This project is listed under AI Chatbots in Artificial Intelligence, a category made for creators, businesses, students and developers who want to use AI without getting lost in research papers.

Do I need coding knowledge? Coding Knowledge Recommended. (Estimate based on project type: A developer tool/library — setup usually follows the README with basic coding skills. Always confirm from the repo's README.)

Is It Free?

The source code is released under the Apache-2.0 license. Open-source licenses like this usually allow free use, including commercial use — but always read the actual license file in the repository before relying on it. Note: the code being free does not mean hosted services, APIs or infrastructure around it are free.

Is It Actively Maintained?

Activity level: Maintained · Last code update: 10 Nov 2025 · Created: 31 Mar 2023 · Open issues: 25

How to Get Started

1. Open the repository on GitHub and read its README — that is the official, verified setup guide.
2. To download the full code, generate this repository's public link below and run the clone command in a terminal:

Official links: Releases ↗ · Documentation (README) ↗

We never publish installation steps we have not verified — the README above is the source of truth.

Repository Statistics

⭐ 38716 stars · 🍴 6254 forks · 🐛 25 open issues · 💻 Language: Python · 📄 License: Apache-2.0 · Default branch: master