Discover the best projects built with LangChain

Open-source RAG evaluation through users' feedback. Maintained by firecrawl on GitHub, where it has earned 223 stars from the community.

Self improving agentic rag pipeline. Maintained by FareedKhan-dev on GitHub, where it has earned 223 stars from the community.

Web app for teams of 20+ members. In-built connections to major LLMs via API. Share chats, prompts, and agents in team or private folders. Modern, fully responsive stack (Next.js, Node.js). Deploy your own vibe-coded AI apps, agents, or workflows or use ready-made solutions from the library. Maintained by weam-ai on GitHub, where it has earned 222 stars from the community.

Tiny toolkit for air-gapped LLMs on consumer-grade hardware. Maintained by su77ungr on GitHub, where it has earned 222 stars from the community.

Python SDK for healthcare AI — typed, validated FHIR tools for agents, real-time EHR connectivity, production deployment. Maintained by healthchainai on GitHub, where it has earned 221 stars from the community.

Gemini PDF Chatbot: A Streamlit-based application powered by the Gemini conversational AI model. Upload multiple PDF files, extract text, and engage in natural language conversations to receive detailed responses based on the document context. Enhance your interaction with PDF documents using this intuitive and intelligent chatbot. Maintained by kaifcoder on GitHub, where it has earned 221 stars from the community.

OpenAI compatible API for TensorRT LLM triton backend. Maintained by npuichigo on GitHub, where it has earned 221 stars from the community.

This repository contains resources and materials for courses and presentations related to AI Agents and Agentic Systems for Cybersecurity Operations by Omar Santos. Maintained by santosomar on GitHub, where it has earned 220 stars from the community.

A simple and declarative way to control LLMs. Maintained by LevanKvirkvelia on GitHub, where it has earned 218 stars from the community.

FinSight - Financial Insights at Your Fingertip: FinSight is a cutting-edge AI assistant tailored for portfolio managers, investors, and finance enthusiasts. It streamlines the process of gaining crucial insights and summaries about a company in a user-friendly manner. Maintained by vishwasg217 on GitHub, where it has earned 216 stars from the community.

This repository hosts a growing collection of AI blueprint projects that run end-to-end using Jupyter notebooks, MLflow deployments, and Streamlit web apps. All projects are built using HP AI Studio with If you find this useful, please don’t forget to star the repository ⭐ and support our work. Maintained by HPInc on GitHub, where it has earned 216 stars from the community.

Load local LLMs effortlessly in a Jupyter notebook for testing purposes alongside Langchain or other agents. Contains Oobagooga and KoboldAI versions of the langchain notebooks with examples. Maintained by ausboss on GitHub, where it has earned 216 stars from the community.

Open-source protocol suite standardizing LLM, Vector, Graph, and Embedding infrastructure across LangChain, LlamaIndex, AutoGen, CrewAI, Semantic Kernel, and MCP. 3,330+ conformance tests. One protocol. Any framework. Any provider. Maintained by Corpus-OS on GitHub, where it has earned 213 stars from the community.

PDF（，，，，），(ChatGLM2-6B, RWKV)+langchain+streamlitPDF，，. Maintained by ck-unifr on GitHub, where it has earned 213 stars from the community.

A ReAct-Based Highly Robust Autonomous Agent (Harness) Framework. Maintained by vortezwohl on GitHub, where it has earned 212 stars from the community.

This is the official companion repository for the book The Complete LangGraph Blueprint: Build 50+ AI Agents for Business Success. The repository provides source code, practical examples, and resources to help you build dynamic AI agents using LangGraph, a cutting-edge graph-based framework for artificial intelligence workflows. Maintained by jkmaina on GitHub, where it has earned 211 stars from the community.

Open Source AI Tracing Framework built on Opentelemetry for AI Applications and Frameworks. Maintained by future-agi on GitHub, where it has earned 211 stars from the community.

Static security scanner for LLM agents — prompt injection, MCP config auditing, taint analysis. 51 rules mapped to OWASP Agentic Top 10 (2026). Works with LangChain, CrewAI, AutoGen. Maintained by HeadyZhang on GitHub, where it has earned 211 stars from the community.

In LangChain for LLM Application Development, you will gain essential skills in expanding the use cases and capabilities of language models in application development using the LangChain framework. Maintained by Ryota-Kawamura on GitHub, where it has earned 210 stars from the community.

A unified interface for various AI model providers. Maintained by lfnovo on GitHub, where it has earned 210 stars from the community.

Visualization for a Retrieval-Augmented Generation (RAG) Assistant. Maintained by Renumics on GitHub, where it has earned 209 stars from the community.

ChatGPT for lecture slides. Maintained by benthecoder on GitHub, where it has earned 209 stars from the community.

Complex question answering in LLMs with enhanced reasoning and information-seeking capabilities. Maintained by AutoLLM on GitHub, where it has earned 208 stars from the community.

Developed an AI application using LLM to analyze user resumes and provided the summarization, strengths, weaknesses, suggestions, suitable job titles, and also scraping job details from LinkedIn using Selenium. This application reduces time by 30% and helps candidates tailor their resumes effectively. Maintained by gopiashokan on GitHub, where it has earned 207 stars from the community.

Implementation of an AI Instructor using LLMs and Langchain. Maintained by hqanhh on GitHub, where it has earned 206 stars from the community.

M-Cube (M³) — Multi-thinking, Multimodal, Multi-verification Patent Drafting Assistant. Maintained by yycyyv on GitHub, where it has earned 206 stars from the community.

Self-hostable multimodal chat with local LLMs (Ollama/OpenAI): PDF RAG, image chat, and Whisper voice, Streamlit + Docker. Maintained by Leon-Sander on GitHub, where it has earned 205 stars from the community.

An adaptive multi-agent system that extracts your literary DNA through conversation and generates actionable reading profiles. Maintained by muratcankoylan on GitHub, where it has earned 203 stars from the community.

Enterprise AI middleware, alternative to unifyapps, n8n, lyzr. Maintained by rootflo on GitHub, where it has earned 200 stars from the community.

A framework for agentic tool use training with reinforcement learning. Maintained by ToolBrain on GitHub, where it has earned 200 stars from the community.

Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled, AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in. Maintained by Idun-Group on GitHub, where it has earned 198 stars from the community.

DocsMind allows you to chat with your docs and summarize your docs, support pdf, md. Maintained by 3Alan on GitHub, where it has earned 197 stars from the community.

🇰🇷 LLM. LangServe, Ollama, streamlit + RAG. Maintained by teddylee777 on GitHub, where it has earned 196 stars from the community.

AI · · Fully Automated AI Video Agent · Local Deployment. Maintained by OpenDemon on GitHub, where it has earned 195 stars from the community.

A collection of prompts for use with GPT-4 via ChatGPT, OpenAI API w/ Gradio frontend & notebook. Maintained by jmpaz on GitHub, where it has earned 195 stars from the community.

pdf reader app with note taking, annotations, collaboration, ai features (chat, flashcards generation w. ai-feedbacks), tts and ocr. Maintained by zeus-12 on GitHub, where it has earned 194 stars from the community.

Fiddler Auditor is a tool to evaluate language models. Maintained by fiddler-labs on GitHub, where it has earned 194 stars from the community.

A voice-enabled chatbot application built using of LangChain, text-to-speech, and speech-to-text models from Hugging Face, and BentoML. Maintained by ssheng on GitHub, where it has earned 194 stars from the community.

Explore LangChain and build powerful chatbots that interact with your own data. Gain insights into document loading, splitting, retrieval, question answering, and more. Maintained by ksm26 on GitHub, where it has earned 192 stars from the community.

RAG ：、PDF 、Agent 、scope 、。FastAPI + Vue3. Maintained by biao994 on GitHub, where it has earned 191 stars from the community.

Python SDK for interacting with the MCP Toolbox for Databases. Maintained by googleapis on GitHub, where it has earned 191 stars from the community.

An LLM Chatbot that dynamically retrieves and processes resumes using RAG to perform resume screening. Maintained by Hungreeee on GitHub, where it has earned 190 stars from the community.

LLM. Maintained by recomoonmoon on GitHub, where it has earned 189 stars from the community.

LangChain x gpt4free. Maintained by MIDORIBIN on GitHub, where it has earned 188 stars from the community.

Structured Data Extractor for AI Agents. Search your documents or the web for specific data and get it back in JSON or Markdown in a single tool call. Maintained by velocitybolt on GitHub, where it has earned 188 stars from the community.

Using Langchain's ideas to build SpringBoot AI applications | langchain，SpringBoot AI. Maintained by hkh1012 on GitHub, where it has earned 187 stars from the community.

A project worth exploring. Maintained by chatchat-space on GitHub, where it has earned 187 stars from the community.

langchainlangchain. Maintained by liteli1987gmail on GitHub, where it has earned 186 stars from the community.

RAG Chatbot with Confluence. Maintained by BastinFlorian on GitHub, where it has earned 185 stars from the community.

A comprehensive list of document parsers, covering PDF-to-text conversion and layout extraction. Each tested for support of tables, equations, handwriting, two-column layouts, and multi-column layouts. Maintained by GiftMungmeeprued on GitHub, where it has earned 184 stars from the community.

Pure Rust PDF library for AI/RAG: structure-aware chunking, no ML, no C deps. Maintained by bzsanti on GitHub, where it has earned 184 stars from the community.

Python package that provides (unofficial) API access to the GPT-4 through chat.openai.com. Works with langchain. Supports search DALL-E 3, plugins, continuing generation. Maintained by Erol444 on GitHub, where it has earned 184 stars from the community.

LangChain ，deeplearning.ai ：Python、NodeJs、Golang. Maintained by ConnectAI-E on GitHub, where it has earned 184 stars from the community.

Chat with your data privately using MPT-30b. Maintained by mayooear on GitHub, where it has earned 183 stars from the community.

ChatPDF-GPT is an innovative chat interface application powered by LangChain and OpenAI, allowing users to upload and chat with PDF documents, stored in Pinecone vector database and Supabase storage. Maintained by anis-marrouchi on GitHub, where it has earned 182 stars from the community.

Multi-agent autonomous research system using LangGraph and LangChain. Generates citation-backed reports with credibility scoring and web search. Maintained by tarun7r on GitHub, where it has earned 182 stars from the community.

Hal9 — Build and Deploy AI Agents. Maintained by hal9ai on GitHub, where it has earned 181 stars from the community.

Build AI-powered Agents for Twitter. Maintained by bigsky77 on GitHub, where it has earned 181 stars from the community.

An implementation of Google Deep Search with support for 1000+ references, local inference, chatting with your scraping session using RAPTOR, and report generation. Maintained by iblameandrew on GitHub, where it has earned 181 stars from the community.

Agentic AI. Maintained by FlyAIBox on GitHub, where it has earned 179 stars from the community.