Langchain Open Source Projects

Browse 270 Langchain open source projects, ranked by GitHub stars. Find the most popular Langchain tools and libraries.

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1-60 of 270 projects
151,877 stars

logspace-ai/langflow

⛓️ Langflow is a UI for LangChain, designed with react-flow to provide an effortless way to experiment and prototype flows.

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Stars151,877
149,286 stars

langgenius/dify

Production-ready platform for agentic workflow development.

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Stars149,286
142,123 stars

langchain-ai/langchain

The agent engineering platform.

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Stars142,123
63,600 stars

Mintplex-Labs/anything-llm

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

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Stars63,600
54,029 stars

BerriAI/litellm

The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]

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Stars54,029
40,944 stars

danny-avila/LibreChat

Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active

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Stars40,944
38,435 stars

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 (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain

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Stars38,435
36,280 stars

reworkd/AgentGPT

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

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Stars36,280
36,164 stars

CopilotKit/CopilotKit

The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

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Stars36,164
23,473 stars

Anil-matcha/ChatPDF

Chat with any PDF. Easily upload the PDF documents you'd like to chat with. Instant answers. Ask questions, extract information, and summarize documents with AI. Sources included.

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Stars23,473
19,518 stars

eosphoros-ai/DB-GPT

open-source agentic AI data assistant for the next generation of AI + Data products.

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Stars19,518
17,443 stars

GoogleCloudPlatform/generative-ai

Sample code and notebooks for Generative AI on Google Cloud, with Gemini Enterprise Agent Platform

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Stars17,443
16,575 stars

mayooear/gpt4-pdf-chatbot-langchain

GPT4 & LangChain Chatbot for large PDF docs

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Stars16,575
15,160 stars

Unstructured-IO/unstructured

Convert documents to structured data effortlessly. Unstructured is open-source ETL solution for transforming complex documents into clean, structured formats for language models. Visit our website to learn more about our enterprise grade Platform product for production grade workflows, partitioning, enrichments, chunking and embedding.

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Stars15,160
14,806 stars

botpress/botpress

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

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Stars14,806
12,639 stars

langchain4j/langchain4j

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

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Stars12,639
12,467 stars

Portkey-AI/gateway

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

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Stars12,467
12,319 stars

Chainlit/chainlit

Build Conversational AI in minutes ⚡️

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Stars12,319
11,597 stars

yzfly/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! 🚀

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Stars11,597
11,594 stars

dataelement/bisheng

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level System Management, Observability and more.

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Stars11,594
9,548 stars

tmc/langchaingo

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

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Stars9,548
9,459 stars

kyrolabs/awesome-langchain

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

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Stars9,459
9,209 stars

activeloopai/deeplake

Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.

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Stars9,209
9,058 stars

liaokongVFX/LangChain-Chinese-Getting-Started-Guide

LangChain 的中文入门教程

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Stars9,058
8,098 stars

zilliztech/GPTCache

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

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Stars8,098
6,963 stars

kyegomez/swarms

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

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Stars6,963
5,402 stars

casibase/casibase

⚡️Open-source AI LangChain-like RAG (Retrieval-Augmented Generation) knowledge database with web UI and Enterprise SSO⚡️, supports OpenAI, Azure, LLaMA, Google Gemini, HuggingFace, Claude, Grok, etc., chat bot demo: https://demo.casibase.com, admin UI demo: https://demo-admin.casibase.com

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Stars5,402
5,391 stars

TaskingAI/TaskingAI

The open source platform for AI-native application development.

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Stars5,391
5,039 stars

argilla-io/argilla

Argilla is a collaboration tool for AI engineers and domain experts to build high-quality datasets

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Stars5,039
4,766 stars

getzep/zep

Zep | Examples, Integrations, & More

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Stars4,766
4,312 stars

Agenta-AI/agenta

The open-source workspace for building and running AI agents. Build agents through chat, share them with your team, and run background agents on schedules or app events.

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Stars4,312
3,846 stars

shroominic/codeinterpreter-api

👾 Open source implementation of the ChatGPT Code Interpreter

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Stars3,846
3,805 stars

SamurAIGPT/EmbedAI

An app to interact privately with your documents using the power of GPT, 100% privately, no data leaks

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Stars3,805
3,420 stars

iusztinpaul/hands-on-llms

🦖 𝗟𝗲𝗮𝗿𝗻 about 𝗟𝗟𝗠𝘀, 𝗟𝗟𝗠𝗢𝗽𝘀, and 𝘃𝗲𝗰𝘁𝗼𝗿 𝗗𝗕𝘀 for free by designing, training, and deploying a real-time financial advisor LLM system ~ 𝘴𝘰𝘶𝘳𝘤𝘦 𝘤𝘰𝘥𝘦 + 𝘷𝘪𝘥𝘦𝘰 & 𝘳𝘦𝘢𝘥𝘪𝘯𝘨 𝘮𝘢𝘵𝘦𝘳𝘪𝘢𝘭𝘴

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Stars3,420
3,343 stars

OpenGVLab/Ask-Anything

[CVPR2024 Highlight][VideoChatGPT] ChatGPT with video understanding! And many more supported LMs such as miniGPT4, StableLM, and MOSS.

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Stars3,343
3,316 stars

X-D-Lab/LangChain-ChatGLM-Webui

基于LangChain和ChatGLM-6B等系列LLM的针对本地知识库的自动问答

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Stars3,316
3,256 stars

pezzolabs/pezzo

🕹️ Open-source, developer-first LLMOps platform designed to streamline prompt design, version management, instant delivery, collaboration, troubleshooting, observability and more.

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Stars3,256
3,203 stars

OpenGVLab/InternGPT

InternGPT (iGPT) is an open source demo platform where you can easily showcase your AI models. Now it supports DragGAN, ChatGPT, ImageBind, multimodal chat like GPT-4, SAM, interactive image editing, etc. Try it at igpt.opengvlab.com (支持DragGAN、ChatGPT、ImageBind、SAM的在线Demo系统)

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Stars3,203
3,198 stars

SamurAIGPT/Camel-AutoGPT

🚀 Introducing 🐪 CAMEL: a game-changing role-playing approach for LLMs and auto-agents like BabyAGI & AutoGPT! Watch two agents 🤝 collaborate and solve tasks together, unlocking endless possibilities in #ConversationalAI, 🎮 gaming, 📚 education, and more! 🔥

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Stars3,198
2,675 stars

georgia-tech-db/evadb

Database system for AI-powered apps

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Stars2,675
2,464 stars

paulpierre/RasaGPT

💬 RasaGPT is the first headless LLM chatbot platform built on top of Rasa and Langchain. Built w/ Rasa, FastAPI, Langchain, LlamaIndex, SQLModel, pgvector, ngrok, telegram

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Stars2,464
2,460 stars

xusenlinzy/api-for-open-llm

Openai style api for open large language models, using LLMs just as chatgpt! Support for LLaMA, LLaMA-2, BLOOM, Falcon, Baichuan, Qwen, Xverse, SqlCoder, CodeLLaMA, ChatGLM, ChatGLM2, ChatGLM3 etc. 开源大模型的统一后端接口

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Stars2,460
2,454 stars

mattzcarey/code-review-gpt

Your personal code reviewer powered by LLMs (OpenAI GPT-3.5/4, Llama2, Azure AI) & Embeddings ⚡️ Improve code quality and catch bugs before you break production 🚀

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Stars2,454
2,329 stars

langchain-ai/langserve

LangServe 🦜️🏓

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Stars2,329
2,324 stars

refuel-ai/autolabel

Label, clean and enrich text datasets with LLMs.

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Stars2,324
2,318 stars

vearch/vearch

Distributed vector search for AI-native applications

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Stars2,318
2,240 stars

Mintplex-Labs/vector-admin

The universal tool suite for vector database management. Manage Pinecone, Chroma, Qdrant, Weaviate and more vector databases with ease.

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Stars2,240
1,989 stars

andreibondarev/langchainrb

Build LLM-backed Ruby applications

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Stars1,989
1,901 stars

melih-unsal/DemoGPT

🤖 Create LLM agents in a second with your prompts. Everything you need to create an LLM Agent - tools, prompts, frameworks, and models - all in one place.

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Stars1,901
1,850 stars

szczyglis-dev/py-gpt

Desktop AI Assistant powered by GPT-5, GPT-4, o1, o3, Gemini, Claude, Ollama, DeepSeek, Perplexity, Grok, Bielik, chat, vision, voice, RAG, image and video generation, agents, tools, MCP, plugins, speech synthesis and recognition, web search, memory, presets, assistants,and more. Linux, Windows, Mac

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Stars1,850
1,827 stars

SamurAIGPT/Open-Custom-GPT

Create Custom GPT and add/embed on your site using Assistants api

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Stars1,827
1,817 stars

peremartra/Large-Language-Model-Notebooks-Course

Practical course about Large Language Models.

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Stars1,817
1,793 stars

n4ze3m/dialoqbase

Create chatbots with ease

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Stars1,793
1,741 stars

richardyc/Chrome-GPT

An AutoGPT agent that controls Chrome on your desktop

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Stars1,741
1,698 stars

theodo-group/LLPhant

LLPhant - A comprehensive PHP Generative AI Framework using OpenAI GPT 4. Inspired by Langchain and LLamaIndex

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Stars1,698
1,639 stars

jina-ai/langchain-serve

⚡ Langchain apps in production using Jina & FastAPI

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Stars1,639
1,623 stars

psychic-api/psychic

Data integration platform for LLMs. Connect to SaaS tools with turnkey auth and sync documents from N data sources with only one integration

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Stars1,623
1,603 stars

sobelio/llm-chain

`llm-chain` is a powerful rust crate for building chains in large language models allowing you to summarise text and complete complex tasks

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Stars1,603
1,534 stars

kaushikb11/awesome-llm-agents

A curated list of awesome LLM agents frameworks.

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Stars1,534
1,476 stars

aws-samples/amazon-bedrock-samples

This repository contains examples for customers to get started using the Amazon Bedrock Service. This contains examples for all available foundational models

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Stars1,476
1-60 of 270 projects
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