{
 "title": "Top Open-Source AI Projects on GitHub (2026): Agents, LLM Tools & Frameworks",
 "description": "Popular open-source AI agent frameworks, local LLM runners and AI app builders ranked by GitHub stars.",
 "url": "https://stackloom-ai.pages.dev/rankings/open-source-ai-projects/",
 "data_checked_on": "2026-10-21",
 "sources": [
  {
   "name": "GitHub REST API (api.github.com/repos/…)",
   "url": "https://docs.github.com/en/rest/repos/repos#get-a-repository"
  }
 ],
 "methodology": "We picked well-known open-source AI frameworks, LLM runtimes and agent/app builders and pulled live star counts from the GitHub API. Stars measure popularity, not quality. The list is curated, not exhaustive. All are free to self-host; \"Best for\" is the project's own GitHub description.",
 "columns": [
  "rank",
  "repo",
  "stars",
  "description",
  "language",
  "license"
 ],
 "items": [
  {
   "rank": 1,
   "repo": "n8n-io/n8n",
   "stars": 208218,
   "description": "Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.",
   "language": "TypeScript",
   "license": "NOASSERTION",
   "url": "https://github.com/n8n-io/n8n"
  },
  {
   "rank": 2,
   "repo": "Significant-Gravitas/AutoGPT",
   "stars": 187695,
   "description": "AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.",
   "language": "Python",
   "license": "NOASSERTION",
   "url": "https://github.com/Significant-Gravitas/AutoGPT"
  },
  {
   "rank": 3,
   "repo": "ollama/ollama",
   "stars": 184155,
   "description": "Get up and running with Kimi, GLM, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.",
   "language": "Go",
   "license": "MIT",
   "url": "https://github.com/ollama/ollama"
  },
  {
   "rank": 4,
   "repo": "langgenius/dify",
   "stars": 159136,
   "description": "Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.",
   "language": "Python",
   "license": "NOASSERTION",
   "url": "https://github.com/langgenius/dify"
  },
  {
   "rank": 5,
   "repo": "open-webui/open-webui",
   "stars": 156353,
   "description": "User-friendly AI Interface (Supports Ollama, OpenAI API, ...)",
   "language": "Python",
   "license": "NOASSERTION",
   "url": "https://github.com/open-webui/open-webui"
  },
  {
   "rank": 6,
   "repo": "langchain-ai/langchain",
   "stars": 148198,
   "description": "The agent engineering platform.",
   "language": "Python",
   "license": "MIT",
   "url": "https://github.com/langchain-ai/langchain"
  },
  {
   "rank": 7,
   "repo": "ggml-org/llama.cpp",
   "stars": 131914,
   "description": "LLM inference in C/C++",
   "language": "C++",
   "license": "MIT",
   "url": "https://github.com/ggml-org/llama.cpp"
  },
  {
   "rank": 8,
   "repo": "browser-use/browser-use",
   "stars": 118749,
   "description": "Open-source Python library for AI browser agents, plus Browser Use Cloud: stealth browsers and a hosted agent API.",
   "language": "Python",
   "license": "MIT",
   "url": "https://github.com/browser-use/browser-use"
  },
  {
   "rank": 9,
   "repo": "vllm-project/vllm",
   "stars": 94726,
   "description": "A high-throughput and memory-efficient inference and serving engine for LLMs",
   "language": "Python",
   "license": "Apache-2.0",
   "url": "https://github.com/vllm-project/vllm"
  },
  {
   "rank": 10,
   "repo": "infiniflow/ragflow",
   "stars": 92601,
   "description": "RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs",
   "language": "Go",
   "license": "Apache-2.0",
   "url": "https://github.com/infiniflow/ragflow"
  },
  {
   "rank": 11,
   "repo": "microsoft/autogen",
   "stars": 61508,
   "description": "A programming framework for agentic AI",
   "language": "Python",
   "license": "CC-BY-4.0",
   "url": "https://github.com/microsoft/autogen"
  },
  {
   "rank": 12,
   "repo": "crewAIInc/crewAI",
   "stars": 59952,
   "description": "Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.",
   "language": "Python",
   "license": "MIT",
   "url": "https://github.com/crewAIInc/crewAI"
  },
  {
   "rank": 13,
   "repo": "run-llama/llama_index",
   "stars": 52602,
   "description": "LlamaIndex is the document processing platform for AI",
   "language": "Python",
   "license": "MIT",
   "url": "https://github.com/run-llama/llama_index"
  }
 ]
}