LangChain Starter Projects LLM Tools

Learning-focused LangChain implementations and tutorials using Node.js/JavaScript, including sandboxes, templates, and experimental projects. Does NOT include production frameworks, deployed applications, or tools built with LangChain that solve specific business problems.

There are 77 langchain starter projects tools tracked. 1 score above 50 (established tier). The highest-rated is langchain-ai/langsmith-docs at 55/100 with 163 stars.

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#	Tool	Score	Tier	Stars	Language
1	langchain-ai/langsmith-docs This repo is deprecated. Please go to langchain-ai/docs.	55	Established	163	JavaScript
2	neondatabase/examples Examples and code snippets demonstrating common ways of integrating Neon...	43	Emerging	70	TypeScript
3	julianduque/heroku-langchain Integrate LangChainJS with Heroku's Managed Inference and Agents (Mia) services	43	Emerging	4	TypeScript
4	stepanogil/autonomous-hr-chatbot An autonomous HR agent that can answer user queries using tools	43	Emerging	441	Jupyter Notebook
5	jina-ai/langchain-serve ⚡ Langchain apps in production using Jina & FastAPI	38	Emerging	1,633	Python
6	ricklamers/shell-ai LangChain powered shell command generator and runner CLI	37	Emerging	1,152	Python
7	Azure-Samples/aks-openai-chainlit-terraform This sample shows how to create two AKS-hosted chat applications that use...	35	Emerging	44	HCL
8	mayooear/langchain-js-tutorial LangChain beginner's tutorial for javascript/typescript	34	Emerging	190	TypeScript
9	CodelyTV/add_ai_follwing_best_practices-course Add Artificial Intelligence following best practices course examples	33	Emerging	34	TypeScript
10	hazemKrimi/touch-programming Master touch typing with real code snippets from your favorite programming...	32	Emerging	1	TypeScript
11	PromptMixerDev/prompt-mixer-langchain-tavily-search-openai-connector Tavily-OpenAI connector harnesses Tavily's web research capabilities and...	32	Emerging	5	JavaScript
12	lucasboscatti/Whatsapp-Langgraph-Agent-Integration A WhatsApp AI Agent powered by LangGraph, FastAPI, and Groq. Acts as an...	29	Experimental	87	Python
13	lostintangent/codespaces-langchain 🦜🔗 A Codespaces template for getting up-and-running with LangChain in seconds!	29	Experimental	112	—
14	S4nfs/Algolisa All-in-one repository of Production-ready tutorials on languages and...	27	Experimental	5	JavaScript
15	SingularityLabs-ai/llm-playground-chain Langchain for Browser Extensions	27	Experimental	3	TypeScript
16	CapgeminiInventUK/langscout Open source LLM trace tool for Langchain built on MongoDB	27	Experimental	13	TypeScript
17	Azure-Samples/openai-langchainjs Demonstrates how to use Azure OpenAI with LangChain.js	27	Experimental	7	Bicep
18	sergio11/langgraph_legal_assistant 🧠 Personal POC demonstrating agentic workflows with LangGraph and real-time...	27	Experimental	3	Jupyter Notebook
19	qingpingwang/chat-agent 具备长期记忆和实时流式响应的 AI 聊天助手，基于 LangGraph + Flask + SSE 构建	26	Experimental	3	HTML
20	developersdigest/function-chain The FunctionChain is a tool that simplifies and organizes the process of...	26	Experimental	54	JavaScript
21	guidanoli/thinkchain 🧠 ThinkChain	26	Experimental	7	TypeScript
22	dissorial/Chainlit-OpenAI-Functions OpenAI functions + Chainlit + Streaming responses. Chain multiple functions...	25	Experimental	33	Python
23	gilfernandes/router_chain_playground Project dedicated to explore the capabilities of LLMRouterChain	24	Experimental	22	HTML
24	kdjlyy/LangGraphChatBot 基于 LangGraph 实现的聊天机器人，接入 DeepSeek、Qwen、智谱 AI 多个 LLM 模型，支持在线搜索和文件解析。	24	Experimental	9	Python
25	amalshehu/langchain-js-realworld Langchain realworld examples in JS	23	Experimental	186	JavaScript
26	postman-open-technologies/bingchain Capable Langchain/AutoGPT alternative in ~350 lines of core code	23	Experimental	20	JavaScript
27	linnienaryshkin/langchain LangChain Sandbox \| AI knowledge-base	22	Experimental	—	TypeScript
28	Bluboks/langchain-codex-oauth-js Unofficial LangChain JS chat model for OpenAI Codex OAuth in Node.js and TypeScript	22	Experimental	—	TypeScript
29	jibbs1703/Retail-Chat-Agent-Backend This repository contains the scripts to build and deploy the backend...	22	Experimental	—	Python
30	linnienaryshkin/ai-polygon LangChain Sandbox \| AI knowledge-base	22	Experimental	—	TypeScript
31	WwHeshi/ChatAgent ChatAgent 是一个基于 LLM 的智能体交流平台，内置默认 Agent 并支持用户自定义 Agent。通过多轮对话和任务协作，Agent...	22	Experimental	3	Python
32	evanwrm/solidchain Small demo application for testing llms	22	Experimental	—	TypeScript
33	AltairaLabs/promptpack-langchainjs LangChain.js integration for PromptPack — an open specification for...	22	Experimental	—	TypeScript
34	Mdsakha127/bns-lang- Create PLC ladder logic using a simple numeric language that compiles...	22	Experimental	—	JavaScript
35	liteli1987gmail/js-langchain-CN langchain中文网JS版本 langchain的中文文档	21	Experimental	26	JavaScript
36	julian-hecker/naitive Showcase using Langchain in a React Native application	21	Experimental	10	TypeScript
37	NexTech-Fusion/langchain-express-starter Langchain 🦜 running🏃‍♀️ on express including file reader and history management	21	Experimental	10	TypeScript
38	RockChinQ/qcg-center LangBot 项目的中央服务端程序｜遥测、数据处理、BI、模型分发	21	Experimental	8	Go
39	gradientsandgrit/langsync Sync your team's data to your LLM applications in real-time	21	Experimental	10	TypeScript
40	smallnest/langchat 一个基于 langgraphgo 实现的会话智能体框架，其他都为你做好了，你只需专注业务逻辑开发	21	Experimental	20	HTML
41	Archaversine/TypeChain Proof of Concept Implementation of Langchain in Haskell	21	Experimental	8	Haskell
42	utkarsh5026/ProgChain Explore programming concepts, prepare for interviews, and deepen your...	20	Experimental	1	TypeScript
43	ujeebu/ujeebu-langchain-js LangChain integration for Ujeebu Extract API - extract clean, structured...	19	Experimental	—	TypeScript
44	supadata-ai/langchain-js LangChain loader for Supadata. Add YouTube, TikTok, and other video...	19	Experimental	—	TypeScript
45	BeatrisIlieva/drf-react-gems WEB APPLICATION \| Built with Django Rest Framework, React and LangChain	17	Experimental	2	JavaScript
46	gzlliyu/chatStreamAiAgent 使用LLM大模型、langchain、fastapi、agent等技术实现ai和用户聊天，并且支持本地向量库、api接口工具，支持http sse流式输出	16	Experimental	18	Python
47	pablocastilla/fastapi_langchain combining fast api and langchain	16	Experimental	3	Python
48	rajesh9943/Customer-Support-Agentic-AI This AI customer support agent uses LangGraph and LangChain for query...	16	Experimental	3	Jupyter Notebook
49	antoinewg/langchain-agent-collection Collection of Langchain agents	15	Experimental	6	TypeScript
50	NguyenAnhTuan1912/langchain-genai-example Repo mẫu cho ví dụ về Memory với Langchain. Hiện tại thì có ví dụ về...	15	Experimental	1	TypeScript
51	Alchemist1411/LangChain Perform on-chain actions on Sonic blockchain using AI	15	Experimental	2	TypeScript
52	kawamataryo/sandbox-summary-by-langhchain sample code to summarize a web page using LangChain	15	Experimental	2	TypeScript
53	RelevanceAI/relevance-chain-sdk The managed, developer-first SDK for building LLM chains.	15	Experimental	6	TypeScript
54	OpenBotAuth/openbotauth-demos Langchain example	15	Experimental	—	TypeScript
55	cs-joy/langchain-js-py-rs self-learning -> langchain framework. how dows it work? let's explore @langchain-ai	15	Experimental	—	TypeScript
56	Rafiqdevhub/codify-backend An API with Node and Langchain.	14	Experimental	—	TypeScript
57	jshahid21/omnihelp Production agentic AI customer support system — LangGraph, RAG, SQL, Nginx,...	14	Experimental	—	Python
58	Rafiqdevhub/Langchain-With-Node.js An API with Node and Langchain.	14	Experimental	—	TypeScript
59	surajvariar/General-Agent Deep Agent which connects to Ollama supported models.	14	Experimental	—	Python
60	bsorrentino/langchain-labs AI experimentation using langchain framework	14	Experimental	1	TypeScript
61	overexpload/thalia Thalia🍃 currently not developing any more.	13	Experimental	5	JavaScript
62	joyqi/chatchain Use LangChain to read text and vectorize it for generating dialogue scenarios.	13	Experimental	5	TypeScript
63	kaushikb11/langgraph-customer-support-bot Customer Support Bot using Langgraph	13	Experimental	8	Python
64	Frank2006x/Aletheia Trust that can't be hidden . Intelligence that can't be compromised	13	Experimental	2	TypeScript
65	vw-wob-it-edu/KARL KARL, a small robot that can access artificial intelligences and process files.	13	Experimental	—	JavaScript
66	sali72/my-inner-pages Your journaling companion	12	Experimental	1	—
67	Natanaelvich/langchain-applications_asimov Practical applications of AI using LangChain, by Asimov Academy.	12	Experimental	1	TypeScript
68	kenzic/simple-langsmith-demo Simple LangChain app used to demo LangSmith	12	Experimental	—	JavaScript
69	nsmaassel/UserStoryEnhancer Azure Function App to enhance user stories using LangChain & OpenAI's API,...	12	Experimental	1	TypeScript
70	BYDiii-Hashmanii/simple_langraph_chatbot This is simple agentic chatbot with one tool Node and LLM.	11	Experimental	—	Jupyter Notebook
71	JonathanHarford/kitchen_mgmt Vibe-Coded AI (LangChain) Kitchen Manager	11	Experimental	—	TypeScript
72	lumenis-ai/web An AI playground with LangChain	11	Experimental	—	TypeScript
73	Minty-cyber/BasicLingua-Webapp A webapp that shows the demo of how the basiclingua library works	11	Experimental	2	JavaScript
74	Mermade/bingchain Capable Langchain/AutoGPT alternative in ~350 lines of core code	11	Experimental	2	JavaScript
75	Ayush272002/Pact Force consensus through conflict.	11	Experimental	—	TypeScript
76	alihassanml/chatbot-with-langgraph_groq LangGraph for designing complex conversational flows.	10	Experimental	1	Jupyter Notebook
77	extrawest/langchain_gen_ai_agent Langchain AI Search Agent	10	Experimental	1	Python