Open-source chatbots software
833 open-source libraries, tools and applications tagged chatbots, ranked by how closely chatbots is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
833 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| MervinPraison/PraisonAI PraisonAI is a Python multi-agent framework for building and deploying autonomous, self-improving AI agents with built-in memory, RAG, and … | 89 | 9274 | active |
| yagop/node-telegram-bot-api A runtime-agnostic TypeScript client library for the Telegram Bot API, supporting Node.js, Bun, Deno, Cloudflare Workers, and Vercel Functi… | 94 | 9206 | active |
| telegraf/telegraf Telegraf is a modern Telegram Bot API framework for Node.js, written in TypeScript with full Bot API 7.1 support. It offers a middleware-ba… | 66 | 9193 | stable |
| lencx/Noi Noi is a cross-platform desktop AI browser that unifies multiple AI chat services (ChatGPT, Claude, Gemini, Perplexity, DeepSeek, etc.) int… | 77 | 9063 | active |
| eternnoir/pyTelegramBotAPI pyTelegramBotAPI (TeleBot) is a simple but extensible Python implementation of the Telegram Bot API, supporting both synchronous and asynch… | 93 | 8789 | active |
| a-ghorbani/pocketpal-ai PocketPal AI is an open-source mobile app that runs GGUF language models entirely on-device for private, offline chat. It supports model do… | 87 | 8727 | active |
| AAswordman/Operit Operit AI is an open-source AI agent and chat application for Android built with Kotlin and Jetpack Compose. It connects cloud or local LLM… | 86 | 8416 | active |
| zai-org/ChatGLM-6B ChatGLM-6B is an open-source bilingual (Chinese-English) 6.2B-parameter dialogue language model based on the GLM architecture, optimized fo… | 31 | 40938 | maintenance |
| duixcom/Duix-Mobile Duix Mobile is an open-source SDK for building real-time interactive AI avatars (digital humans) that run on-device on Android, iOS, tablet… | 63 | 8267 | active |
| NullClaw NullClaw is an autonomous AI assistant/agent runtime written in Zig, distributed as a tiny static binary (~678 KB, ~1 MB RAM, <2 ms startup… | 69 | 8104 | active |
| lm-sys/FastChat FastChat is an open platform for training, serving, and evaluating large language model based chatbots, originally releasing the Vicuna mod… | 54 | 39548 | maintenance |
| Osaurus Osaurus is a native Swift macOS application that acts as a local-first AI harness, running open models on Apple Silicon (via MLX and Apple … | 82 | 8060 | active |
| Knight Bot Knight Bot is a multi-device WhatsApp bot built on the Baileys library, focused on group management features like tagging all members, muti… | 54 | 8047 | active |
| rikkahub/rikkahub RikkaHub is a native Android LLM chat client built with Kotlin and Jetpack Compose that supports switching between multiple AI providers su… | 81 | 7859 | active |
| 2FastLabs/agent-squad Agent Squad is an open-source framework for orchestrating multiple AI agents, routing each user query to the most suitable specialized agen… | 89 | 7780 | active |
| NoneBot2 NoneBot2 is a modern, cross-platform, asynchronous Python chatbot framework with a plugin system, adapter architecture, and built-in depend… | 84 | 7723 | active |
| zhinianboke/xianyu-auto-reply A self-hosted multi-account automation system for the Xianyu (Goofish) second-hand marketplace, built with Python/FastAPI, React, MySQL, Re… | 62 | 7399 | active |
| xerrors/Yuxi Yuxi is a self-hosted, multi-tenant knowledge agent platform that unifies RAG, knowledge graph construction (Milvus + Neo4j), LangGraph mul… | 84 | 7256 | active |
| NVIDIA-NeMo/Guardrails NVIDIA NeMo Guardrails is an open-source Python toolkit for adding programmable guardrails to LLM-based conversational applications. It sit… | 90 | 7181 | active |
| Fiora Fiora is an open source real-time chat application built with Node.js, React, Socket.IO, and MongoDB. It supports group and private messagi… | 32 | 7165 | active |
| enricoros/big-AGI Big-AGI is an open-source AI workspace web application that lets users chat with many state-of-the-art LLM providers (OpenAI, Anthropic, Ge… | 91 | 7147 | active |
| wzpan/wukong-robot wukong-robot is a modular Chinese-language voice assistant / smart speaker project in Python that combines offline wake-word detection, ASR… | 32 | 7127 | active |
| SuanmoSuanyangTechnology/MemoryBear MemoryBear is an AI memory management system that gives LLM agents and chatbots human-like long-term memory across a full lifecycle of perc… | 83 | 7009 | active |
| deeppavlov/DeepPavlov DeepPavlov is an open-source Python NLP library built on PyTorch and Hugging Face transformers for developing, training, and deploying stat… | 35 | 6995 | active |
| mckaywrigley/chatbot-ui Chatbot UI is an open-source, self-hostable web chat application for conversing with any AI model, with chat history and multi-model suppor… | 31 | 33349 | maintenance |
| yihong0618/xiaogpt A Python application that connects Xiaomi AI Speakers to ChatGPT and other LLMs, letting users ask questions starting with a trigger phrase… | 58 | 6921 | active |
| liliMozi/openhanako HanaAgent is a cross-platform desktop application providing a personal AI agent with persistent memory, customizable personality, and auton… | 76 | 6809 | active |
| langchain-ai/opengpts OpenGPTs is an open-source platform for building and hosting custom AI assistants similar to OpenAI's GPTs and Assistants API. It is built … | 10 | 6707 | active |
| Chanzhaoyu/chatgpt-web A self-hosted ChatGPT demo web application built with Express (Node.js backend) and Vue 3 frontend. It supports two access methods: the off… | 10 | 31414 | maintenance |
| vynect/venom Venom is a high-performance Node.js/TypeScript framework for automating WhatsApp through WhatsApp Web via Puppeteer, offering a clean API f… | 65 | 6585 | active |
| axa-group/nlp.js NLP.js is a natural language processing library for Node.js that provides intent classification, named entity recognition, sentiment analys… | 23 | 6580 | active |
| openai/openai-cs-agents-demo A demo application from OpenAI implementing a customer service chat experience using the OpenAI Agents SDK, with a Python backend for multi… | 41 | 6575 | active |
| Genkit Genkit is an open-source framework by Google for building full-stack, AI-powered agentic applications in JavaScript/TypeScript, Go, Python,… | 87 | 6524 | stable |
| langchain-ai/chat-langchain Chat LangChain is a production-ready documentation assistant agent that answers questions about LangChain, LangGraph, and LangSmith, built … | 77 | 6470 | active |
| go-telegram-bot-api/telegram-bot-api Go bindings for the Telegram Bot API, providing a thin wrapper around all bot endpoints including message sending, file uploads, webhooks, … | 23 | 6408 | stable |
| therealXiaomanChu/ex-skill A Claude Code skill (plugin) that distills an ex-partner into a personalized AI persona. It ingests chat exports (WeChat, QQ), screenshots,… | 46 | 6406 | active |
| ThinkInAIXYZ/deepchat DeepChat is an open-source, local-first AI agent desktop client built with Electron that connects to multiple LLM providers like OpenAI, Cl… | 88 | 6369 | active |
| MaiBot MaiBot (MaiSaka) is an open-source, LLM-powered conversational agent designed to behave like a warm, human-like 'digital life form' in QQ g… | 84 | 6338 | active |
| koishijs/koishi Koishi is a cross-platform, extensible chatbot framework written in TypeScript for Node.js. It provides a unified SDK for building bots acr… | 87 | 6257 | active |
| nlweb-ai/NLWeb NLWeb is an open protocol and Python reference implementation for adding natural language conversational interfaces to websites, leveraging… | 60 | 6254 | active |
| Shaunwei/RealChar RealChar is an open-source application for creating, customizing, and talking to AI characters/companions in realtime via voice or text. It… | 45 | 6211 | active |
| wenda-LLM/wenda Wenda is a self-hosted LLM invocation platform designed for efficient content generation in constrained environments, integrating local/off… | 31 | 6148 | active |
| aiogram/aiogram aiogram is a modern, fully asynchronous Python framework for the Telegram Bot API, built on asyncio and aiohttp. It provides routers, middl… | 96 | 5888 | active |
| RuoYi-AI RuoYi AI is an open-source, enterprise-grade full-stack AI assistant platform built in Java on the RuoYi ecosystem and LangChain4j. It unif… | 91 | 5761 | active |
| littlecodersh/ItChat ItChat is a Python library providing a complete API for WeChat personal accounts, enabling bots and automation with under thirty lines of c… | 23 | 26453 | maintenance |
| Red Discord Bot Red is a fully modular, self-hosted Discord bot written in Python with built-in features for music, moderation, trivia, and stream alerts. … | 85 | 5728 | active |
| serge-chat/serge Serge is a self-hosted web chat interface for running LLMs locally via llama.cpp, built with a SvelteKit frontend and FastAPI backend. It s… | 10 | 5709 | active |
| the-open-agent/openagent OpenAgent is a self-hosted, single-binary personal AI assistant platform built in Go that combines LLM chat, RAG knowledge bases, and auton… | 93 | 5670 | active |
| ConnectAI-E/feishu-openai A self-hosted Go application that integrates OpenAI models (GPT-4, GPT-4V, DALL·E-3, Whisper) into Feishu/Lark as a chatbot. It supports vo… | 32 | 5633 | active |
| 狗头军师 (Goutoujunshi) Goutoujunshi is a Codex Skill (AI agent plugin) that acts as a relationship advisor, first validating the user's emotions, then analyzing r… | 56 | 5619 | active |
| father-bot/chatgpt_telegram_bot A self-hostable Telegram bot that brings ChatGPT and Claude models into Telegram using your own OpenAI/Anthropic/OpenRouter API keys. It su… | 73 | 5538 | active |
| TelegramBots Java Library A Java library for building Telegram bots using the Telegram Bots API, supporting both long polling and webhook methods. It is distributed … | 94 | 5518 | active |
| eatmoreapple/openwechat A Go SDK that provides an API for personal WeChat accounts, allowing developers to build WeChat bots similar to developing official account… | 34 | 5471 | active |
| TaskingAI/TaskingAI TaskingAI is an open-source Backend-as-a-Service (BaaS) platform for developing and deploying LLM-based AI agents. It unifies access to hun… | 17 | 5406 | active |
| nanbingxyz/5ire 5ire is a cross-platform desktop AI assistant and MCP (Model Context Protocol) client that connects to major LLM providers like OpenAI, Ant… | 80 | 5354 | active |
| milind-soni/OpenMausBot OpenMausBot is an open-source, local-first desktop chat application (Electron, TypeScript) where each contact is an AI agent powered by Cla… | 77 | 5133 | active |
| chatopera/Synonyms A Python library for Chinese synonym lookup and semantic similarity computation, built on word vector models for NLP and chatbot use cases.… | 48 | 5107 | active |
| Gaia node GaiaNet node is a shell-based installer and runtime for running your own decentralized AI agent service locally. It deploys an LLM inferenc… | 45 | 5015 | active |
| Zep A repository of example code, framework integration packages, ingestion tooling, and memory benchmarks for Zep Cloud, a managed agent memor… | 97 | 4959 | active |
| WuKongIM/WuKongIM WuKongIM is a high-performance, channel-oriented instant messaging server written in Go that handles message persistence, replication, orde… | 87 | 4955 | active |
| babaohuang/GeminiProChat A minimal web chat interface for Google's Gemini Pro API, built with TypeScript and Astro. It can be self-hosted via Vercel, Railway, Zeabu… | 58 | 4894 | active |
| ant-design/x Ant Design X is a React UI component library and toolkit from the Ant Design team for building AI-driven conversational interfaces, includi… | 83 | 4808 | active |
| Rasa Open Source Rasa Open Source is a Python-based framework for building text and voice conversational agents. It provides NLU, dialogue management, and i… | 62 | 21330 | maintenance |
| openai/chatgpt-retrieval-plugin A FastAPI-based retrieval backend that provides semantic search over personal or organizational documents using natural language queries, w… | 31 | 21249 | maintenance |
| offu/WeRoBot WeRoBot is a Python framework for developing WeChat Official Account (公众号) robots. It provides decorators for handling incoming message typ… | 47 | 4663 | stable |
| tucnak/telebot Telebot is a Go framework for building Telegram bots on top of the Telegram Bot API. It provides a concise API with command routing, middle… | 58 | 4635 | active |
| vbot Vbot is a PHP library implementing a WeChat (personal WeChat) robot based on the WeChat web protocol, supporting message sending/receiving,… | 57 | 4612 | active |
| JoshuaC215/agent-service-toolkit A full toolkit for building and running an AI agent service using LangGraph, FastAPI, and Streamlit. It provides a template including a Lan… | 68 | 4531 | active |
| tdlib/telegram-bot-api An open-source C++ server that implements the Telegram Bot API as an HTTP service, built on TDLib. It can be self-hosted to run bots agains… | 73 | 4474 | active |
| crmne/ruby_llm RubyLLM is a Ruby framework providing a unified, expressive interface to all major AI providers (OpenAI, Anthropic, Google, Ollama, and any… | 88 | 4472 | active |
| gptme gptme is a free, open-source personal AI agent that runs in the terminal, equipped with local tools for shell execution, code writing, file… | 98 | 4457 | active |
| cs-lazy-tools/ChatGPT-On-CS An open-source LLM-powered intelligent customer-service tool that connects to e-commerce and social platforms like WeChat, Pinduoduo, Qiann… | 61 | 4456 | active |
| alibaba/ChatUI ChatUI is a React component library and UI design language from Alibaba for building conversational chat interfaces. It provides chat messa… | 52 | 4450 | active |
| archestra-ai/archestra Archestra is an open-source, self-hosted enterprise AI platform combining an agentic chat UI, agent runtime, LLM gateway/proxy, MCP gateway… | 82 | 4380 | active |
| 53AI Hub 53AI Hub is an open-source AI portal and knowledge base platform for publishing and operating AI agents, prompts, and AI tools. It integrat… | 84 | 4323 | active |
| teloxide Teloxide is a full-featured Rust framework for building Telegram bots, built on the dptree chain-of-responsibility pattern for declarative … | 77 | 4243 | active |
| m1heng/clawdbot-feishu A Feishu/Lark channel plugin for OpenClaw that lets the OpenClaw AI assistant communicate through Feishu messaging. It is installed via the… | 58 | 4231 | active |
| zhayujie/bot-on-anything Bot on Anything is a lightweight Python framework for building AI chatbots that connect large language models (ChatGPT, Claude, Gemini, ERN… | 59 | 4222 | active |
| Chevey339/kelivo Kelivo is an open-source, cross-platform LLM chat client built with Flutter that runs on Android, iOS, HarmonyOS, Windows, macOS, and Linux… | 84 | 4176 | active |
| nageoffer/ragent Ragent AI is a production-grade Java platform for building Agentic RAG applications, covering document ingestion, hybrid retrieval (vector,… | 76 | 4164 | active |
| BytePioneer-AI/openclaw-china A collection of OpenClaw plugins that connect AI assistants to Chinese messaging platforms including DingTalk, WeCom (WeChat Work), WeChat,… | 65 | 3962 | active |
| mushan0x0/AI0x0.com AI 0x0 is a multimodal, multi-model desktop AI assistant that lives as a floating ball on macOS and Windows, letting users invoke AI querie… | 33 | 3935 | active |
| yetone/cumora Cumora is a cross-platform team chat application where AI agents participate as first-class teammates alongside humans, with personas, memo… | 77 | 3934 | active |
| claraverse-space/ClaraVerse ClaraVerse is a self-hosted, privacy-focused AI workspace that combines chat, multi-agent teams, a visual workflow builder, RAG document pr… | 75 | 3905 | active |
| ilysenko/codex-desktop-linux An unofficial community-maintained Linux distribution of OpenAI's ChatGPT desktop app (formerly Codex), repackaged from the official signed… | 61 | 3893 | active |
| skydoves/chatgpt-android An open-source Android chatbot application demonstrating OpenAI's ChatGPT chat API integration, built with Jetpack Compose and Stream Chat … | 46 | 3872 | active |
| mayooear/ai-pdf-chatbot-langchain A monorepo template for an AI PDF chatbot agent that ingests PDFs, stores embeddings in Supabase, and answers questions using OpenAI via La… | 10 | 16589 | maintenance |
| Zhenxun Bot A cute anime-themed QQ chatbot built on Nonebot2 with multi-platform adaptation and multi-bot management. It ships a large plugin ecosystem… | 77 | 3838 | active |
| tbxark/ChatGPT-Telegram-Workers A Telegram ChatGPT bot deployable on Cloudflare Workers, Vercel, or Docker with a single-file, dependency-free setup. It supports multiple … | 95 | 3805 | active |
| OpenAvatarChat OpenAvatarChat is a modular interactive digital human (talking avatar) chat application that combines ASR, LLM, TTS, and avatar rendering c… | 69 | 3802 | active |
| 1186258278/OpenClawChineseTranslation A Chinese-localized distribution of OpenClaw, an open-source personal AI assistant that connects Claude/ChatGPT/Gemini LLMs to messaging pl… | 78 | 3796 | active |
| deanxv/coze-discord-proxy A self-hosted Go service that proxies conversations to a Coze-Bot on Discord, exposing OpenAI-compatible API endpoints (v1/chat/completions… | 55 | 3778 | stable |
| PeterH0323/Streamer-Sales Streamer-Sales is a fine-tuned LLM-based AI sales livestreamer application that generates persuasive product commentary from product descri… | 17 | 3775 | active |
| grammY grammY is an open-source framework for building Telegram bots in TypeScript or JavaScript, running on Node.js, Deno, and even browsers. It … | 96 | 3769 | active |
| thinking-orbs A React/TypeScript library of dotted canvas-based loading indicators ('thinking orbs') designed for AI and agent chat interfaces. It ships … | 54 | 3764 | active |
| OvidijusParsiunas/deep-chat Deep Chat is a fully customizable, framework-agnostic AI chatbot web component that can be added to any website with one line of code. It s… | 90 | 3722 | active |
| llm-workflow-engine/llm-workflow-engine LLM Workflow Engine (LWE) is a power CLI and workflow manager for interacting with LLMs like ChatGPT/GPT-4 from the terminal. It supports m… | 86 | 3715 | active |
| LLOneBot/LuckyLilliaBot Lucky Lillia Bot (LLBot) is a QQ bot framework that implements the OneBot 11, Satori, and Milky protocols, letting bot frameworks like Kois… | 91 | 3676 | active |
| wa-automate A Node.js/TypeScript toolkit that turns a WhatsApp account into an HTTP API, bot runtime, webhook bridge, plugin host, and MCP server by au… | 95 | 3665 | active |
| Yue-Yang/ChatGPT-Siri A set of Apple Shortcuts that connect Siri to the ChatGPT API, turning Siri into an AI chat assistant on iPhone, iPad, Mac, HomePod, and Ca… | 69 | 3650 | active |