Top 23 Chatbot Open-Source Projects

1. prompts.chat

   1 169 163,301 10.0 HTML

   f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.

   

   Project mention: Show HN: Typed-Prompts – Type-Safe Prompt Engineering | news.ycombinator.com | 2025-12-25

2. SaaSHub

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3. LLMs-from-scratch

   2 38 96,593 9.2 Jupyter Notebook

   Implement a ChatGPT-like LLM in PyTorch from scratch, step by step

   

   Project mention: DeepSeek Sparse Attention | news.ycombinator.com | 2026-05-24

4. LobeHub

   3 20 78,186 10.0 TypeScript

   The ultimate space for work and life — to find, build, and collaborate with agent teammates that grow with you.

   

   Project mention: Show HN: AI Roundtable – Let 200 models debate your question | news.ycombinator.com | 2026-03-24

   You can set this up yourself with API keys to the corresponding providers and creating an Agent Group in https://github.com/lobehub/lobehub. Agent groups allow you to easily create a room of agents and have them discuss any of your topics. Easily make agents with types and skills, it even assists in drafting starting prompts and even team members depending what your query (and selected model) is.

   You can self-host as well, but not via desktop app. Sever setup required.

   Be careful of your token context, you can easily rack up costs if you leave Opus selected as the model and get lost in some rabbit hole of results.

   Enjoy enjoy!

5. gpt4free

   4 45 66,281 9.8 Python

   The official gpt4free repository | various collection of powerful language models | opus 4.6 gpt 5.3 kimi 2.5 deepseek v3.2 gemini 3

   

   Project mention: GPT4Free: "educational project" for free LLM inference from various services | news.ycombinator.com | 2025-06-30

6. llm-app

   5 15 59,431 4.7 Jupyter Notebook

   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.

   

7. Flowise

   6 36 53,317 9.7 TypeScript

   Build AI Agents, Visually

   

   Project mention: I Tested Flowise, Dify, and n8n Across 30+ Client Deployments. Here Is My Verdict. | dev.to | 2026-04-07

   Citation Capsule: n8n's GitHub community reached 182,000+ stars across a 7-year development history, with 70+ AI-specific nodes added in 2024 to 2025. Source: n8n GitHub. Dify crossed 106,000 stars on GitHub with an Apache 2.0 license. Source: Dify GitHub. Flowise reached 51,000+ stars with MIT license. Source: Flowise GitHub. Dify's minimum recommended RAM is 4 GB versus Flowise's 1 GB and n8n's 300 MB. Source: Dify Docs.

8. chatbox

   7 37 40,313 9.6 TypeScript

   Powerful AI Client

   

   Project mention: Open source project chatbox is under attack | news.ycombinator.com | 2026-01-07

9. quivr

   8 24 39,171 9.1 Python

   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.

   

10. AstrBot

    9 2 33,820 9.9 Python

    AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨

    

11. python-telegram-bot

    10 62 29,197 9.3 Python

    We have made you a wrapper you can't refuse

    

12. sim

    11 11 28,708 10.0 TypeScript

    Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce.

    

    Project mention: heym alternatives - n8n and sim | libhunt.com/r/heym | 2026-05-15

    Sim ai is an alternative to Heym

13. agentscope

    12 4 26,238 9.6 Python

    Build and run agents you can see, understand and trust.

    

    Project mention: All Data and AI Weekly #207: 15 Sept 2025 | dev.to | 2025-09-15

    GitHub Link: https://github.com/agentscope-ai/agentscope Summary: Agentscope is an agent-oriented programming library that makes it easier to build LLM applications. It's designed to be "developer-centric" with features like asynchronous execution, parallel tool calls, and real-time steering. It offers a transparent approach where prompt engineering and API invocation are fully visible and controllable. Why it's important: Agentscope, along with its related libraries like agentscope-runtime and agentscope-studio, provides a comprehensive toolkit for not only developing but also deploying and visualizing agent-based applications.

14. repomix

    13 50 25,919 9.9 TypeScript

    📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.

    

    Project mention: 15 AI Coding Hacks Nobody Talks About (2026) | dev.to | 2026-05-28

    Most people paste files one at a time. Install Repomix and feed your entire project to the AI in one command.

15. kotaemon

    14 10 25,432 4.1 Python

    An open-source RAG-based tool for chatting with your documents.

    

16. LLaVA

    15 23 24,756 8.6 Python

    [NeurIPS'23 Oral] Visual Instruction Tuning (LLaVA) built towards GPT-4V level capabilities and beyond.

    

    Project mention: OpenAI Open Models | news.ycombinator.com | 2025-08-05

17. wechaty

    16 4 22,823 3.5 TypeScript

    Conversational RPA SDK for Chatbot Makers. Join our Discord: https://discord.gg/7q8NBZbQzt

    

18. CosyVoice

    17 1 21,440 9.2 Python

    Multi-lingual large voice generation model, providing inference, training and deployment full-stack ability.

    

    Project mention: CosyVoice 2025 Complete Guide: The Ultimate Multi-lingual Text-to-Speech Solution | dev.to | 2025-12-15

    git clone --recursive https://github.com/FunAudioLLM/CosyVoice.git cd CosyVoice # If submodule cloning fails due to network issues git submodule update --init --recursive

19. rasa

    18 19 21,197 2.9 Python

    💬 Open source machine learning framework to automate text- and voice-based conversations: NLU, dialogue management, connect to Slack, Facebook, and more - Create chatbots and voice assistants

    

    Project mention: Eliza Reanimated Published in IEEE Annals of the History of Computing | news.ycombinator.com | 2025-06-20

    Right before LLMs broke into the scene we had a few techniques I was aware of:

    * Personality Forge uses a rules-based scripting approach [0]. This is basically ELIZA extended to take advantage of modern processing power.

    * Rasa [1] used traditional NLP/NLU techniques and small-model ML to match intents and parse user requests. This is the same kind of tooling that Google/Alexa historically used, just without the voice layer and with more effort to keep the context in mind.

    Rasa is actually open source [2], so you can poke around the internals to see how it's implemented. It doesn't look like it's changed architecture substantially since the pre-LLM days. Rhasspy [3] (also open source) uses similar techniques but in the voice assistant space rather than as a full chatbot.

    [0] https://www.personalityforge.com/developers/how-to-build-cha...

    [1] https://web.archive.org/web/20200801000000*/https://rasa.com... (old link because Rasa's marketing today is ambiguous about whether they're adding LLMs now).

    [2] https://github.com/RasaHQ/rasa

    [3] https://rhasspy.readthedocs.io/en/latest/

20. coze-studio

    19 4 20,936 9.5 TypeScript

    An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging, and deployment like never before. Coze your way to AI Agent creation.

    

    Project mention: coze-studio VS astron-agent - a user suggested alternative | libhunt.com/r/coze-studio | 2025-10-29

21. eliza

    20 11 18,504 10.0 TypeScript

    Open source agentic operating system

    

    Project mention: Architecting a Self Governing De-Fi Agent - Here's How It Ranked | dev.to | 2026-05-21

    I recently built Nostra: a constitutional DeFi agent running on ElizaOS v2 and deployed on Nosana's decentralized GPU network. It just ranked #6 out of 105 submissions across 32 countries in Nosana's Fourth Builders' Challenge. The judges called it "a thoughtful approach to trust, compliance, and agent responsibility" — which, honestly, felt great to read after two weeks of late-night debugging.

22. Leon

    21 39 17,289 9.5 TypeScript

    🧠 Leon is your open-source personal assistant.

    

23. open-im-server

    22 12 16,417 8.2 Go

    IM Chat OpenClaw

    

24. ChatALL

    23 20 16,406 6.2 JavaScript

    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

    

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