Top LangChain repositories

Biggest movers this week

git clone https://github.com/Arize-ai/phoenix && cd phoenix && docker compose up -d

git clone https://github.com/GoogleCloudPlatform/generative-ai.git

git clone https://github.com/BitterSecurity/Decepticon.git

git clone https://github.com/huggingface/agents-course.git

pipx install unstructured

git clone https://github.com/thesysdev/openui.git

Top 40 on the Elo ladder

1. #57
   microsoft/markitdown

   Python tool for converting files and office documents to Markdown.

   • Legendary #57

   2,313 Elo −10195kPython
2. #163
   langchain-ai/langchain

   The agent engineering platform.

   • Diamond I

   2,153 Elo −44149kPython
3. #182
   BerriAI/litellm

   The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost…

   • Diamond I

   2,138 Elo −1663.3kPython
4. #190
   headroomlabs-ai/headroom

   Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents…

   • Diamond I

   2,134 Elo −1279.7kPython
5. #273
   bytedance/deer-flow

   An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes…

   • Diamond II

   2,080 Elo −3485.3kPython
6. #294
   langchain-ai/langgraph

   Build resilient agents.

   • Diamond II

   2,070 Elo −744.9kPython
7. #395
   langfuse/langfuse

   🪢 Open source AI engineering platform: AI Gateway, agent observability, evals, and prompt/skill management, built on…

   • Diamond III

   2,017 Elo +1237.4kTypeScript
8. #455
   huggingface/agents-course

   This repository contains the Hugging Face Agents Course.

   • Diamond III

   1,991 Elo +5135kMDX
9. #534
   langchain-ai/deepagents

   The batteries-included agent harness.

   • Diamond IV

   1,963 Elo +531.3kPython
10. #685
    datawhalechina/all-in-rag

    🔍大模型应用开发实战一：RAG 技术全栈指南，在线阅读地址：https://datawhalechina.github.io/all-in-rag/

    • Diamond V

    1,919 Elo +4013.1kPython
11. #799
    mlflow/mlflow

    The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug…

    • Emerald I

    1,895 Elo −1528.8kPython
12. #830
    comet-ml/opik

    Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing…

    • Emerald I

    1,889 Elo +3523.4kPython
13. #960
    thesysdev/openui

    The Open Standard for Generative UI

    • Emerald II

    1,864 Elo +4115.2kTypeScript
14. #987
    NirDiamant/GenAI_Agents

    50+ tutorials and implementations for Generative AI Agent techniques, from basic conversational bots to complex…

    • Emerald II

    1,858 Elo −824.9kJupyter Notebook
15. #1,127
    NirDiamant/RAG_Techniques

    This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems. Each technique…

    • Emerald III

    1,837 Elo −4730.3kJupyter Notebook
16. #1,492
    Arize-ai/phoenix

    AI Observability & Evaluation

    • Emerald IV

    1,785 Elo +6612.3kPython
17. #1,506
    FlowiseAI/Flowise

    Build AI Agents, Visually

    • Emerald IV

    1,784 Elo −7955.5kTypeScript
18. #1,746
    GoogleCloudPlatform/generative-ai

    Sample code and notebooks for Generative AI on Google Cloud, with Gemini platform

    • Platinum I

    1,756 Elo +6317.9kJupyter Notebook
19. #1,869
    1Panel-dev/MaxKB

    🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。

    • Platinum I

    1,742 Elo 23.1kPython
20. #2,207
    cloudwego/eino

    The ultimate LLM/AI application development framework in Go.

    • Platinum II

    1,705 Elo +3413.6kGo
21. #2,309
    Unstructured-IO/unstructured

    Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex…

    • Platinum III

    1,695 Elo +4615.7kHTML
22. #2,402
    langchain4j/langchain4j

    LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a…

    • Platinum III

    1,685 Elo +1213.4kJava
23. #2,584
    Portkey-AI/gateway

    A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly…

    • Platinum III

    1,668 Elo +1813.3kTypeScript
24. #2,870
    chatchat-space/Langchain-Chatchat

    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…

    • Platinum IV

    1,647 Elo −5138.7kPython
25. #3,027
    reworkd/AgentGPT

    🤖 Assemble, configure, and deploy autonomous AI Agents in your browser.

    • Platinum V

    1,635 Elo +636.2kTypeScript
26. #3,096
    EmbraceAGI/awesome-chatgpt-zh

    ChatGPT 中文指南🔥，ChatGPT 中文调教指南，指令指南，应用开发指南，精选资源清单，更好的使用 chatGPT 让你的生产力 up up up! 🚀

    • Platinum V

    1,630 Elo +3211.8kPython
27. #3,194
    datawhalechina/llm-universe

    本项目是一个面向小白开发者的大模型应用开发教程，在线阅读地址：https://datawhalechina.github.io/llm-universe/

    • Gold I

    1,624 Elo −1314.2kJupyter Notebook
28. #3,383
    BitterSecurity/Decepticon

    Autonomous Hacking Agent for Red Team

    • Gold I

    1,612 Elo +606.6kPython
29. #3,462
    botpress/botpress

    The open-source hub to build & deploy GPT/LLM Agents ⚡️

    • Gold I

    1,608 Elo 15kTypeScript
30. #3,469
    meta-llama/llama-cookbook

    Welcome to the Llama Cookbook! This is your go to guide for Building with Llama: Getting started with Inference…

    • Gold I

    1,607 Elo −2418.5kJupyter Notebook
31. #3,655
    StarTrail-org/LEANN

    [MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while…

    • Gold II

    1,595 Elo −2813.7kPython
32. #4,657
    mayooear/ai-pdf-chatbot-langchain

    AI PDF chatbot agent built with LangChain & LangGraph

    • Gold V

    1,536 Elo −4616.5kTypeScript
33. #5,199
    kyegomez/swarms

    The Enterprise-Grade Multi-Agent Orchestration Framework. Website: https://swarms.ai

    • Silver I

    1,510 Elo +347.3kPython
34. #5,431
    tmc/langchaingo

    LangChain for Go, the easiest way to write LLM-based programs in Go

    • Silver II

    1,500 Elo +79.7kGo
35. #6,005
    kyrolabs/awesome-langchain

    😎 Awesome list of tools and projects with the awesome LangChain framework

    • Silver III

    1,473 Elo +239.5k
36. #6,402
    Chainlit/chainlit

    Build Conversational AI in minutes ⚡️

    • Silver IV

    1,456 Elo −2612.5kPython
37. #6,861
    NirDiamant/Prompt_Engineering

    22 prompt engineering techniques with hands-on Jupyter Notebook tutorials, from fundamental concepts to advanced…

    • Silver V

    1,438 Elo +67.9kJupyter Notebook
38. #8,370
    liaokongVFX/LangChain-Chinese-Getting-Started-Guide

    LangChain 的中文入门教程

    • Bronze IV

    1,381 Elo −69.1k
39. #8,374
    zilliztech/GPTCache

    Semantic cache for LLMs. Fully integrated with LangChain and llama_index.

    • Bronze IV

    1,380 Elo +18.2kPython
40. #9,592
    mishushakov/llm-scraper

    Turn any webpage into structured data using LLMs

    • Copper III

    1,308 Elo −46.9kTypeScript