hotaibuild
Sign inSubmit your app
Directory/Best open-source AI tools
Ranked by public GitHub stars

Best open-source AI tools, by the repos people actually star.

This list is the open-source portion of the hotaibuild directory, ordered by the GitHub star count we recorded when the project was listed. Stars are not a quality score and they are not upvotes on this site: they only reflect public interest in the repository. We include apps and self-hosted platforms that are actively maintained, and we skip paper-only repos and awesome-lists.

For the full un-truncated index see open source AI. For chat-style front-ends see open-source ChatGPT alternatives.

  1. 01
    markitdownOpen Source

    Python tool for converting files and office documents to Markdown

    ProductivityFreeMIT194,905 GitHub stars
  2. 02
    AutoGPTOpen Source

    AutoGPT is the vision of accessible AI for everyone, to use and to build on

    Developer ToolsFreeNOASSERTION187,991 GitHub stars
  3. 03
    ollamaOpen Source

    Get up and running with Kimi, GLM, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models

    Developer ToolsFreeMIT186,649 GitHub stars
  4. 04
    difyOpen Source

    Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace

    ProductivityFreeNOASSERTION160,970 GitHub stars
  5. 05
    open-webuiOpen Source

    User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

    Writing & ResearchFreeNOASSERTION158,380 GitHub stars
  6. 06
    langflowOpen Source

    Langflow is a powerful tool for building and deploying AI-powered agents and workflows

    ProductivityFreeMIT156,529 GitHub stars
  7. 07
    cc-switchOpen Source

    A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode,DeepSeek Harness and more

    Developer ToolsFreeMIT153,595 GitHub stars
  8. 08
    ComfyUIOpen Source

    The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface

    Design & CreativeFreeGPL-3.0146,307 GitHub stars
  9. 09
    MoneyPrinterTurboOpen Source

    利用 AI 大模型和自动化工作流，根据主题或关键词一键生成高清短视频。Generate HD short videos from a topic or keyword with an automated AI workflow

    Audio & VideoFreeMIT142,322 GitHub stars
  10. 10
    codexOpen Source

    Lightweight coding agent that runs in your terminal

    Developer ToolsFreeApache-2.0134,879 GitHub stars
  11. 11
    llama.cppOpen Source

    LLM inference in C/C++

    Developer ToolsFreeMIT134,066 GitHub stars
  12. 12
    orcaOpen Source

    Orca lets you run a fleet of coding agents (e.g

    Developer ToolsFreeMIT122,034 GitHub stars
  13. 13
    TradingAgentsOpen Source

    TradingAgents: Multi-Agents LLM Financial Trading Framework

    Finance & LegalFreeApache-2.0121,991 GitHub stars
  14. 14
    paperclipOpen Source

    The open-source app everyone uses to manage agents at work

    Writing & ResearchFreeMIT113,085 GitHub stars
  15. 15
    whisperOpen Source

    Robust Speech Recognition via Large-Scale Weak Supervision

    Audio & VideoFreeMIT112,452 GitHub stars
  16. 16
    gemini-cliOpen Source

    An open-source AI agent that brings the power of Gemini directly into your terminal

    Developer ToolsFreeApache-2.0108,774 GitHub stars
  17. 17
    VoiceStudioOpen Source

    VoiceStudio is the open-source, fully-local ElevenLabs alternative — voice cloning, voice design, video dubbing, dictation, transcription &…

    Audio & VideoFreeAGPL-3.0107,885 GitHub stars
  18. 18
    vllmOpen Source

    A high-throughput and memory-efficient inference and serving engine for LLMs

    Developer ToolsFreeApache-2.096,742 GitHub stars
  19. 19
    PaddleOCROpen Source

    Turn any PDF or image document into structured data for your AI

    Data & AnalyticsFreeApache-2.092,576 GitHub stars
  20. 20
    worldmonitorOpen Source

    Real-time global intelligence dashboard

    Developer ToolsFreeAGPL-3.090,480 GitHub stars
  21. 21
    crawl4aiOpen Source

    Official Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents

    Writing & ResearchFreeApache-2.087,217 GitHub stars
  22. 22
    OmniRouteOpen Source

    Free MIT AI gateway: one endpoint, 375 providers (150+ free), 1,400+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek, MiniMax

    Developer ToolsFreeMIT86,442 GitHub stars
  23. 23
    lobehubOpen Source

    Add super-agents to the chats your team already uses.They take on work by themselves and get better every week

    Writing & ResearchFreeNOASSERTION84,983 GitHub stars
  24. 24
    screenshot-to-codeOpen Source

    Drop in a screenshot and convert it to clean code (HTML/Tailwind/React/Vue)

    Design & CreativeFreeMIT81,156 GitHub stars
  25. 25
    LlamaFactoryOpen Source

    Unified Efficient Fine-Tuning of 100+ LLMs & VLMs (ACL 2024)

    Developer ToolsFreeApache-2.075,998 GitHub stars
  26. 26
    clineOpen Source

    Autonomous coding agent as an SDK, IDE extension, or CLI assistant

    Developer ToolsFreeApache-2.071,522 GitHub stars
  27. 27
    daily_stock_analysisOpen Source

    LLM 驱动的多市场股票智能分析系统：多源行情、实时新闻、决策看板与自动推送，支持零成本定时运行。 LLM-powered multi-market stock analysis system with multi-source market data, real-time news,…

    Writing & ResearchFreeMIT69,845 GitHub stars
  28. 28
    anything-llmOpen Source

    Everything you need for a powerful local-first agent experience

    Writing & ResearchFreeMIT68,178 GitHub stars
  29. 29
    gpt4freeOpen Source

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

    Developer ToolsFreeGPL-3.067,031 GitHub stars
  30. 30
    GPT-SoVITSOpen Source

    1 min voice data can also be used to train a good TTS model!

    Audio & VideoFreeMIT64,776 GitHub stars
  31. 31
    context7Open Source

    Context7 Platform -- Up-to-date docs for AI agents

    Developer ToolsFreeMIT64,590 GitHub stars
  32. 32
    PakeOpen Source

    Turn any website into a lightweight desktop app with one command, on macOS, Windows and Linux

    ProductivityFreeGPL-3.063,236 GitHub stars
  33. 33
    voiceboxOpen Source

    The open-source AI voice studio. Clone, dictate, create

    Audio & VideoFreeMIT60,434 GitHub stars
  34. 34
    cherry-studioOpen Source

    Your AI workspace for models, agents, and productivity

    Writing & ResearchFreeAGPL-3.053,429 GitHub stars
  35. 35
    LocalAIOpen Source

    Run any model - LLMs, vision, voice, image, video - on any hardware

    Developer ToolsFreeMIT50,317 GitHub stars
  36. 36
    aiderOpen Source

    aider is AI pair programming in your terminal

    Developer ToolsFreeApache-2.050,062 GitHub stars
  37. 37
    janOpen Source

    Jan is an open source alternative to ChatGPT that runs 100% offline on your computer

    Writing & ResearchFreeNOASSERTION45,667 GitHub stars
  38. 38
    agnoOpen Source

    The self-driving agent platform

    ProductivityFreeApache-2.043,149 GitHub stars
  39. 39
    chatboxOpen Source

    Powerful AI Client

    Developer ToolsFreeGPL-3.042,299 GitHub stars
  40. 40
    Retrieval-based-Voice-Conversion-WebUIOpen Source

    Easily train a good VC model with voice data <= 10 mins!

    Audio & VideoFreeMIT39,166 GitHub stars