GitHub repos
The most-starred open-source AI projects — agent frameworks, local-LLM runtimes, RAG engines, and coding agents. Filter by category or language, then open any repo for its details and related tools. Star counts are approximate (June 2026).
n8n
n8n-io/n8n
A workflow-automation platform that combines a visual canvas with custom code and native AI nodes — 400+ integrations to wire agents into real systems.
Ollama
ollama/ollama
Pull and run Llama, DeepSeek, Mistral, Qwen, Gemma, and dozens of other open models locally with a single command and a clean API.
Awesome ChatGPT Prompts
f/awesome-chatgpt-prompts
A huge community collection of "act as …" prompts (now prompts.chat). Paste a role, get a working persona for ChatGPT, Claude, or any chat model.
Transformers
huggingface/transformers
The de-facto model-definition framework: load, run, and fine-tune state-of-the-art transformers for text, vision, and audio with a unified API.
Langflow
langflow-ai/langflow
A visual builder for AI agents and retrieval pipelines — wire up models, tools, and logic on a canvas, then export or serve it as an API.
Dify
langgenius/dify
A production-ready platform for building agentic apps: a visual workflow builder, RAG pipelines, model management, and an API to ship from.
Open WebUI
open-webui/open-webui
A polished, self-hosted web interface for Ollama and any OpenAI-compatible API, with chat history, RAG, and multi-user support.
LangChain
langchain-ai/langchain
A modular framework for building LLM apps — composable chains, agents, memory, and integrations with hundreds of tools and vector stores.
Claude Code
anthropics/claude-code
An agentic coding tool that lives in your terminal, understands your whole codebase, and edits files, runs tests, and opens PRs from plain English.
llama.cpp
ggml-org/llama.cpp
High-performance LLM inference in plain C/C++ with quantization — the runtime under much of the local-model ecosystem, from laptops to Raspberry Pis.
ComfyUI
Comfy-Org/ComfyUI
The most powerful and modular diffusion GUI — a node graph for Stable Diffusion, Flux, and video models, with full control over every step.
Generative AI for Beginners
microsoft/generative-ai-for-beginners
21 hands-on lessons that take you from "what is a token" to shipping generative-AI apps, with code in Python and TypeScript.
Gemini CLI
google-gemini/gemini-cli
An open-source command-line agent that brings Gemini’s multimodal model into your terminal for coding, automation, and everyday tasks.
Browser Use
browser-use/browser-use
Make websites accessible to AI agents — drive a real browser to click, type, and extract, so agents can automate web tasks end to end.
MCP Servers
modelcontextprotocol/servers
The official collection of Model Context Protocol servers — filesystem, git, fetch, and more — that give Claude, Cursor, and other clients real tools.
RAGFlow
infiniflow/ragflow
An open-source RAG engine built on deep document understanding — chunking, citations, and agentic retrieval for enterprise knowledge bases.
vLLM
vllm-project/vllm
A fast, memory-efficient inference and serving engine using PagedAttention — the production server behind many open-model deployments.
OpenHands
OpenHands/OpenHands
An AI developer (formerly OpenDevin) that writes code, runs commands, browses the web, and fixes its own mistakes inside a sandbox.
Prompt Engineering Guide
dair-ai/Prompt-Engineering-Guide
Guides, papers, lectures, and notebooks covering prompt and context engineering techniques — few-shot, chain-of-thought, ReAct, and beyond.
OpenAI Cookbook
openai/openai-cookbook
Official examples and guides for common tasks with the OpenAI API — embeddings, function calling, evals, and retrieval.
AutoGen
microsoft/autogen
A programming framework for agentic AI where multiple agents collaborate, call tools, and hand off tasks to solve problems together.
CrewAI
crewAIInc/crewAI
A framework for orchestrating autonomous agents with defined roles, goals, and tools that collaborate as a "crew" on a shared task.
LlamaIndex
run-llama/llama_index
A data framework for LLM apps — ingest, index, and query documents, then build retrieval and document-agent workflows on top.
Claude Cookbooks
anthropics/claude-cookbooks
A collection of notebooks showing effective patterns with Claude — tool use, sub-agents, retrieval, vision, and prompt-caching recipes.
Fabric
danielmiessler/fabric
An open framework for augmenting humans with AI: a library of reusable prompt patterns (summarize, extract wisdom, write essays) you can pipe into from the terminal.