Best Open Source chatbot Libraries
A curated list of the most popular GitHub repositories tagged with chatbot. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1rasbt/LLMs-from-scratch
Implement a ChatGPT-like LLM in PyTorch from scratch, step by step
#2xtekky/gpt4free
The official gpt4free repository | various collection of powerful language models | opus 4.6 gpt 5.3 kimi 2.5 deepseek v3.2 gemini 3
#3pathwaycom/llm-app
Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs, and more.
#4FlowiseAI/Flowise
Build AI Agents, Visually
#5QuivrHQ/quivr
Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want.
#6chatboxai/chatbox
Powerful AI Client
#7chatchat-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
#8agentscope-ai/QwenPaw
Your Personal AI Assistant; easy to install, deploy on your own machine or on the cloud; supports multiple chat apps with easily extensible capabilities.
#9python-telegram-bot/python-telegram-bot
We have made you a wrapper you can't refuse
#10simstudioai/sim
Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.
#11AstrBotDevs/AstrBot
Agentic IM Chatbot infrastructure that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨
#12Cinnamon/kotaemon
An open-source RAG-based tool for chatting with your documents.
#1378/xiaozhi-esp32
An MCP-based chatbot | 一个基于MCP的聊天机器人
#141Panel-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。
#15iOfficeAI/AionUi
Free, local, open-source 24/7 Cowork app and OpenClaw for Gemini CLI, Claude Code, Codex, OpenCode, Qwen Code, Goose CLI, Auggie, and more | 🌟 Star if you like it!
#16agentscope-ai/agentscope
Build and run agents you can see, understand and trust.
#17elizaOS/eliza
Autonomous agents for everyone
#18leon-ai/leon
🧠 Leon is your open-source personal assistant.
#19mayooear/ai-pdf-chatbot-langchain
AI PDF chatbot agent built with LangChain & LangGraph
#20ai-shifu/ChatALL
Concurrently chat with ChatGPT, Bing Chat, Bard, Alpaca, Vicuna, Claude, ChatGLM, MOSS, 讯飞星火, 文心一言 and more, discover the best answers
#21stackblitz/bolt.new
Prompt, run, edit, and deploy full-stack web applications. -- bolt.new -- Help Center: https://support.bolt.new/ -- Community Support: https://discord.com/invite/stackblitz
#22GaiZhenbiao/ChuanhuChatGPT
GUI for ChatGPT API and many LLMs. Supports agents, file-based QA, GPT finetuning and query with web search. All with a neat UI.
#23mamoe/mirai
高效率 QQ 机器人支持库
#24baptisteArno/typebot.io
💬 Typebot is a powerful chatbot builder that you can self-host.
#25sigoden/aichat
All-in-one LLM CLI tool featuring Shell Assistant, Chat-REPL, RAG, AI Tools & Agents, with access to OpenAI, Claude, Gemini, Ollama, Groq, and more.
#26BlinkDL/ChatRWKV
ChatRWKV is like ChatGPT but powered by RWKV (100% RNN) language model, and open source.
#27friuns2/BlackFriday-GPTs-Prompts
List of free GPTs that doesn't require plus subscription
#28yagop/node-telegram-bot-api
Telegram Bot API for NodeJS
#29assistant-ui/assistant-ui
Typescript/React Library for AI Chat💬🚀
#30netease-youdao/LobsterAI
Open-source, desktop-grade AI agent that gets real work done — data analysis, slides, docs, video & web research. Built on OpenClaw; runs tools on your real desktop and takes commands from your phone via WeChat, Feishu, DingTalk & Telegram.
#31h2oai/h2o-llmstudio
H2O LLM Studio - a framework and no-code GUI for fine-tuning LLMs. Documentation: https://docs.h2o.ai/h2o-llmstudio/
#32TanStack/ai
🤖 Type-safe, provider-agnostic TypeScript AI SDK for streaming chat, tool calling, agents, and multimodal apps across OpenAI, Anthropic, Gemini, React, Vue, Svelte, and Solid.
#33proma-ai/Proma
Proma brings a seamless general-purpose Agent experience to your workflow. Built for 100× professionals and the proactive Agent era
#34awesome-gptX/awesome-gpt
🏆 An awe-inspiring collection of resources, encompassing a wide range of tools, documents, resources, applications, and use cases related to ChatGPT.
#35xmanrui/dsh-im
通过扫码或机器人凭据把IM机器人接入DeepSeek Harness（支持飞书、微信、钉钉、企业微信、QQ、Slack、Telegram、Discord和WhatsApp）。 Connect IM bots to DeepSeek Harness via QR code or credentials (9 channels).
#36ChatbotXIO/ChatbotX
Open-source ManyChat alternative, built for AI. Omnichannel marketing across WhatsApp, TikTok, Facebook, Instagram, Telegram, Zalo, Email, API, and Webchat 🤖
#37DasterProkio/awesome-ai-companion
Open-source AI companions, desktop pets, long-term memory & proactive chat. 人机恋开源项目大全。让你的家机能够脱离官端自主存在，拥有记忆和主动性。
#38yegor256/rultor
DevOps team assistant that helps you merge, deploy, and release GitHub-hosted apps and libraries
#39nuxt-ui-templates/chat
Nuxt AI Chatbot Template made with Nuxt UI and Vercel AI SDK.
#40lc-cn/onebots
多平台多协议机器人应用框架